51 years of Chinese solar cell development process of national industry A

51 years of Chinese solar cell development process of national industry A

From 1958, China started to develop the first piece of crystalline silicon photovoltaic cells has now been through half a century. PV experts, Solar Energy Research Institute, Shanghai Jiaotong University, Rong-Qiang Cui told reporters: "China also experienced solar cells from scratch, from space to the ground, from the military to the public, small to large, from single species to multiple species and the photoelectric conversion efficiency from low to high the difficult and glorious history. "

According to statistics, from 2002 to now, China's solar cell production soared by 77 times. In 2008, China's solar cell production accounts for about one-third of world output for two consecutive years to become the world's largest solar cell producer.

1839 French physicist Henri Becquerel discovered the photovoltaic effect for the first time; 1954 Bell Labs made the first silicon solar cell; 1983, California established the United States was the world's largest solar power plant... human the sun has never stopped chasing the pace.

Completed in 1969 developed silicon solar battery

Chinese Academy of Sciences, Institute of Semiconductors, Chinese Academy of Sciences Researcher Wang Zhanguo, told reporters: "The United States pulled out in 1957 around the first block of silicon, also developed in China in 1958, the first block of silicon, then the newly established Institute of Physics Semiconductor Research officially began the development of solar cells. "

Initially, the batteries are mainly used to develop the field of space. From 1958 to 1965, developed by the PN semiconductor junction cell efficiency by leaps and bounds, 10 × 20mm cell efficiency stabilized at 15% or less with the international standards.

1968 and 1969 by the end of the semiconductor assumed to "Practice 1 satellite" development and production of silicon solar panels the task. In the study, researchers found, P + / N silicon solar cells in space single encounter when running electronic radiation, causing the battery decay, so that the battery can not long operate in space.

Thus, including 6-member team, including Wang Zhanguo started satellite radiation effects in silicon solar cell research, experiment, due to immature technology, obsolete equipment, causing serious electronic Zhanguo right hand burns, he has been suffering from this, Until the summer of 1978 have eased skin grafting. Reporter noted academician Wang Zhanguo some black on the back of his right hand fold, this is the great care the older generation of scientists dedicated to the scientific mark.

After painstaking research, the experimental results a huge surprise to the researchers. Academician Wang Zhanguo, NP junction silicon solar cells the ability of anti-electron irradiation than the PN junction silicon cells a few times great! Subsequently, the semiconductor silicon PN battery will be made to put into production NP shape the decision to produce the 5690 NP junction silicon solar cells, which meet the requirements of space applications finished 3350, successfully completed the "Practice 1" satellite in solar panels of the development, production tasks. Practice No. 1 of 1971 was launched during the period in the life of 8 years, solar power less than 15% decline down the project in 1978 by the National Science Conference Award for significant results.

Other Electronics News:



Lenovo ThinkPad X60S Laptop Review, Via Lenovo-Batteries.com Blog

Lenovo ThinkPad X60S Laptop Review, Via Lenovo-Batteries.com Blog


Lenovo ThinkPad X60S Laptop

The ThinkPad X60 is the latest incarnation of the popular ultraportable Lenovo ThinkPad X series. The X60 is the development of the first ThinkPad X41, X60 while the ThinkPad (no "s") is updating the ThinkPad X32. This review will focus on the changes between the X41 and X60. The main difference between the X60 and X60 Core Duo laptop is that the X60 has a low voltage processor while the X60 is not the review is still viewed as an overview for both models.

The IBM ThinkPad X series has a long reign on top was the ultra portable market. Its elegant design and high reliability is a first choice for business travelers. After the purchase by Lenovo, is a little unsure of what to do with the ThinkPad brand.

Stay connected and ahead of the competition are two musts for business travelers, and the Lenovo ThinkPad X60 ($ 2.299 direct) can help you do both. The latest ThinkPad ultraportable ThinkPad X41 is a complete update, maintain an ultra-lightweight, integrated Verizon EV-DO. And since it has a range of more than 7 hours, travel far to the X60.

Specifications such as X60 Reviewed:

  • Processor: Intel Core Duo L2400 1.66 GHz (1.2 V)

  • Operating System: Microsoft Windows XP Professional (Service Pack 2 installed)

  • Hard drive: 80 GB 5400 rpm SATA Toshiba (SKU: MK8032GSX)

  • RAM: 512 MB DDR2 SDRAM (667 MHz), RAM 2 GB maximum configuration

  • Screen size: 12.1 "

  • Resolution: 1024 x 768 (XGA output resolution can be up to 2048 x 1536 via monitor out)

  • Graphics: Intel GMA 950

  • Slots:

  • PCMCIA Type II (left)

  • Slot for SD memory card (left)

  • An expansion slot slot / docking station (below)

  • Ports:

  • 3 USB 2.0 (one on the left, 2 right)

  • Firewire (right)

  • Monitor output (left side)

  • Ethernet LAN port (left side)

  • Modem port (right)

  • Microphone (right)

  • Headphones line (right)

  • power connector (right)

  • Battery: (to be adjusted with a small 4-cell) 8 large cells lenovo battery

  • Dimensions: 10.5 "x 8.3" x 0.83 to 1.11 "(W x [varies from front to back] deep x thick)

  • Weight: 3.5 pounds with an 8-cell battery

  • Integrated Communications: Modem, Gigabit Ethernet, Verizon EVDO WWWAN (optional), Bluetooth (optional), IrDA

Business trip - with some weaknesses in the display. Designing a good ultraportable is certainly one of the most interesting challenges for manufacturers of laptops. And "essential to design a robust, lightweight and with good performance without compromising too much on battery life. The beginning of wisdom Lenovo well with the recent acquisition of IBM.

The design of the ThinkPad X60 is typical of a commercial nature, without any distinct accents. Virtually every detail has its right to exist directly in technical and functional use.

The highlight is the only apparent trace of red in the middle of a deep black keyboard. So there is no doubt that the ThinkPad brand.

People could find something you want - the famous IBM logo is available - the scene of the palm rest and screen cover.

Unless I say the 12-inch x 1024, can not be 768 (XGA) screen X60 changed much, if any of the X41. It is certainly a bright enough screen at maximum brightness (there are 8 levels to choose from), I have no complaints at dusk, and the backlight is very even - no light escapes. The matte screen is variety, not a glossy widescreen display like so many other ultraportables are migrating today. Mate is best for office lighting and reduce glare, and since the X60 has no built-in DVD player and certainly not a portable media, there would be no advantage to have a bright screen.


ThinkPad X60s Laptop Battery

Lenovo ThinkPad X60s Laptop Battery

The battery of a notebook is for me the most important factor of all. What is the point where an ultra portable computer dies, the battery in 2 hours and must find an outlet as a lifeline to stay in? I have the X60 comes with a battery of 8 cells long, protruding from the back of the computer, and not red, and weighs more than the standard 4 cell. But I am glad that the extra weight for 5 hours and 59 minutes battery life helps me with the X60. Incredible! The laptop went into hibernation in the battery life remaining 5% in 5h 59 min mark, which was connected to Wi-Fi and brightness of the screen to "medium" set. The laptop was carried out mainly at idle during this time with a few keystrokes and some light web browsing. Entering e-mail messages and using computers to documents, surf the web and write, I am to 4 hours of cruising at 30% + of the battery still showing. This is by far the best laptop battery I. The processor is significantly decelerate high performance to achieve this life, but so what, things are still pretty catchy. I am very excited about this aspect of the X60.

Thinkpad X60s 8 Cell High Capacity Battery.Lenovo/ibm X60S lithium ion battery is higher quality and lower price.Up to 30% off!ThinkPad X60s battery is made of best cells from Japanese ,longer battery life ,no memory effect.The lenovo thinkpad x60s battery can supply lasting energy for your Lenovo/IBM ThinkPad X60s laptop.Lenovo/IBM ThinkPad X60s battery have passed stringent quality assurance procedures and achieve international standards CE , UL Listed , and/or ISO9001/9002 certification.100% compacompatible with original Lenovo/IBM ThinkPad X60s laptop


Other Electronics News:



The production process of crystalline silicon solar cells

The production process of crystalline silicon solar cells

"Silicon" is stored on our planet one of the most abundance of material. Since the 19th century, scientists have found a crystalline silicon semiconductor properties, it would change everything, even human thought, late 20th century. Seen everywhere in our lives, "silicon" figure and role of crystalline silicon solar cells is the formation of the past 15 years the fastest industrialization. Production process can be divided into five steps: a, purification process b, the process of pulling rod c, slicing process d, the process of manufacturing the battery e, packaging process.


Is a component of photovoltaic panels exposed to sunlight will produce direct current electricity generating equipment, by almost all of the semiconductor material (eg silicon) made of a thin solid body composed of photovoltaic cells. In the absence of moving parts, it can be a long time without causing any loss of operation. Simple photovoltaic cells can provide energy for the watch and computer, more complex PV systems can provide lighting for the house, and the power grid. PV panels can be made into different shapes components, and components can be connected to produce more power. In recent years, the surface of roof and building components will use photovoltaic panels, or even used as windows, skylights or obscure part of the installation of these photovoltaic installations are usually attached to the building known as the photovoltaic system.

Solar Thermal

Modern technology solar thermal polymerization of the sun and use its energy to produce hot water, steam and electricity. In addition to the application of appropriate technology to collect solar energy, the building can also use the sun light and heat energy is added in the design of appropriate equipment, such as the giant south-facing windows or can absorb and slowly release the sun heat the building materials .

Battery Introduction

Refers to conventional batteries containing electrolyte solution and the metal electrode to produce current in the cup, tank or other container or containers part of the space complex. As technology advances, the battery can produce electrical energy refers to small devices. Such as solar cells.

About the battery cell performance parameters are force, capacity, specific energy and resistance. Electromotive force equal to the unit positive charge moving from the anode through the cathode inside the battery, the battery of non-electrostatic (chemical force) to the work done. EMF depends on the chemical properties of electrode materials, and battery size. The total output of the battery can charge the battery capacity, usually in units of ampere-hours. In the battery reaction, 1 kg of reactive substances produced by the theory of power as the battery specific energy. Battery specific energy than the theoretical specific energy is small. Because the battery is not all the reactants in the reaction by the battery while the battery internal resistance should lead to reduced force, so often the high energy battery called high-energy batteries. The larger the size of the battery, its resistance is smaller.

Limited battery energy storage, the battery can output the total charge is called its capacity, usually in units of ampere-hour, it is also one of the battery performance parameters. The capacity of the battery electrode material and related to the number, that is, about the size of the electrodes.

Practical chemical batteries can be divided into two basic types: primary cells and batteries [1]. Made after the original battery can generate current, but discharged Jibei abandoned. Battery also known as secondary batteries, charging prior to use, charge and discharge after the discharge can also be charged after the re-use. Battery charging, the energy converted into chemical energy; discharge, chemical energy into electrical energy.

Other Electronics News:



Dell Inspiron 1520 Laptop Review, via Laptopsbattery.US Blog

Dell Inspiron 1520 Laptop Review, via Laptopsbattery.US Blog


Dell Inspiron 1520 Laptop

Dell Inspiron 1520 notebook for those who want a stylish and customizable notebook at cheap resource, but the basic features and price, a bit behind much of the competition. Dell also had some problems with the quality control process in some cases, the color system.

The update of the popular E1505 Dell Inspiron 1520 has generated great interest in the mobile community. It has offered a complete design update, the new Intel Santa Rosa platform and the best graphics card Dell never in a notebook of this size have. With this notebook, Dell made a solid entry into the market for 15 performances. Papers "The 1520 tangible advantages over other 15" has only offer the 8400M and 1280×800 resolution as the HP dv6500t, and tends to be cheaper than laptops in the spotlight like the Asus G1S.

Dell Inspiron 1520 Technical Specifications:

  • Processor: Intel Core 2 Duo T7300 (2.0 GHz/4MB L2 Cache)

  • Operating System: Microsoft Vista Home Premium

  • Hard drive: 160 GB SATA @ 5400 RPM

  • Display: 15.4 Widescreen WXGA (1680 x 1050)

  • Graphics: NVIDIA GeForce 8600M GT 256 MB

  • RAM: 2.0 GB DDR2 SDRAM @ 667 MHz (2 x 1 GB)

  • Optical Drive: 8x CD / DVD (DVD-RW) with Double Layer

  • Battery: Lithium-Ion 9-cell dell laptop batteries

  • Wireless: Intel 4965AGN

  • Weight: 6.4 pounds

  • Dimensions: 1.47 to 1.65 "(H) x 14.12 cm (W) x 10.59" (D)

  • Ports / Ports: 1 IEEE 1394 (FireWire), 4 Universal Serial Bus (USB 2.0), 8-in-1 card reader, VGA, S-Video, RJ-45 LAN Ethernet RJ-11 modem, ExpressCard 54 mm stereo output, headphone / speaker and two microphones, digital


Dell Inspiron 1520 Laptop

The Inspiron 1520 weighs about six pounds and a half and is considered a consumer notebook in general. Equipment, particularly in the form of graphics, will result in 1520 and on all laptops on the market, with the exception of extremely expensive gaming machines that lack of concessions in the life of the battery size and cost. Though this notebook was sent by Dell for the purposes of research and purchased will not, I wanted to address the above issue, simply because there is something of an art to buying a Dell consumer notebook. There are many decisions to make, and like all decisions, they carry with them the potential for regret or satisfaction.

This is the first computer to simply enjoy playing. The finish of the cover is beautiful, almost tactile rubber surface. Dell term because "Micro Satin," and I agree with this description. My first concern was that the material from scratch, but after a sharp scratching with my thumbnail I was unable to produce a mark. Dell currently offers elegant Belkin bags in colors aspect of the new Inspiron party. Personally, I have not bought one because I do not use bags to the Dove / tarragon to match the color of my team.

The screen on 1520 is a color display very inflexible. I had the opportunity to produce a wave of LCD screen with a few decent rotation. WSXGA resolution is ideal for me, I have much room to work with text, but it seems too small. This particular screen looks a bit grainy, but. It is 1 / 4 "light leak is in the bottom of the screen, but I found no dead or stuck pixels.

In 1520, the speakers were moved to the front of the palm rests in the E1505 under the nose of the computer. I would have preferred that they are above the keyboard somewhere, but at least, where they now have less chance to block with his hands that were on the E1505. The speakers are surprisingly loud without distorting too much, and the sound quality is very good. The 1520 is the new Santa Rosa platform, integrating a 800 MHz front side bus features, improved graphics and new features integrated Wireless-N How many other Dell notebooks, the 1520 features MediaDirect boot that has enabled him to directly into MediaDirect without loading the operating system. The noise is average for a laptop. This is a soft hum, but nothing I found offensive. Even if the fan is running, it is actually stronger than background noise. The keyboard material seems to be the same as that used for the M1210 and has a good grip with it, not softer Inspiron keyboards of the previous generation.


Dell Inspiron 1520 Laptop Battery

Dell Inspiron 1520 Laptop Battery

Battery life will appear in force under the load of the CPU performance settings are about three hours with the 9 cell battery. You could probably extend the four hours or more by disabling wireless, lower screen brightness, and less intensive applications. 9-cell battery extends beyond 3 / 4 "from the back of the computer, but that does not seem particularly remarkable given the size already in the laptop.

Under fairly heavy usage, such as the activity of many hard drives, wireless and the screen goes to full brightness, the battery could run for almost three hours. Very easy to use and a poor display, but wireless is still ongoing, resulted in an extra hour or more. I expected a greater inequality, since my use of the two tests was at opposite ends of the spectrum, but I have used Bluetooth to test the light, and both times seemed fairly strong for a machine of this performance. With a little tweaking, I’m sure others could squeeze more battery life 9 cell.

Replacement For dell inspiron 1520 Battery

[4400/6600mAh,11.1V] Brand new dell inspiron 1520 battery rechargeable

  • Brand: dell (Not OEM)

  • Category: laptop batteries

  • Chemistry: Li-ion

  • Volt: 11.1V

  • Capacity: 4400/6600mAh

Dell inspiron 1520 laptop battery is a high quality rechargeable replacement battery which can 100% compatible with the OEM inspiron 1520 battery which can works with a lot of dell notebook laptop computer. dell inspiron 1520 laptop batteries are warranted for a full year to ensure your complete satisfaction.



Other Electronics News:



Oerlikon thin film solar cell production in China

Oerlikon thin film solar cell production in China

Recently, thin-film photovoltaic solar energy and Baoding Tianwei Co., Ltd. announced the two co-production of thin film solar cells factory production target ahead of schedule.

It is understood that the first phase of the project Tianwei 50 million annual production of battery components, can generate 46.5 megawatts of electricity each year, using high-performance Oerlikon Solar's amorphous silicon photovoltaic technology.

Oerlikon Solar business in 13 countries and regions, to provide for the mass production of thin film silicon solar modules end to end production solutions. The fully automated production solutions focused on reducing device cost and maximize the production.

Applied Materials released new network printing technology can improve the efficiency of solar cells

Recently, Applied Materials released its Baccini Esatto Technology technology, a high precision, multi-screen printing technology, for application materials Baccini's market-leading back-end manufacturing process of solar cells. The technology can effectively improve the efficiency of silicon solar cells, the first double-sided printing for the deposition of metal wire, the battery efficiency is improved by 0.5%.

Other Electronics News:



Dell Inspiron 500M Laptop Review, @ LaptopsBattery.US Blog

Dell Inspiron 500M Laptop Review, @ LaptopsBattery.US Blog


Dell Inspiron 500M Laptop Review

With a starting price of about S $ 2,200 (1258 euros), the Inspiron 500m Pentium M series is one of the best values on the laptops currently on the market, with a performance that is not threatened in any way. Best of all, all in an Inspiron comes with a variety of upgrade options so you can customize the laptop to your lifestyle, whether for business or home.

The good: Good battery life, reasonable price, many configuration options.

The bad: Screen resolution too dense, too much speed, standard one-year warranty.

In short: the settings Inspiron 500m thin and light means you can meet your needs if you take a business trip or at home in the park.

As the recent Inspiron 1100 and 5100 is the 500 in the chassis design, usually with the propeller of the Dell logo etched logo that extends over the entire lid. While Dell has a cover by the end of suffering is not strong, light scratches, the rest of the housing is less solidly built. Closed, the lid tends to "give" and cracks under the pressure of a little manipulation.

The interesting thing about the Inspiron 500m is to update the number of options. While S $ 2,200 (1.258 euros) for an entry level system with a processor of 1.3 GHz Pentium M, 256 MB DDR SDRAM, a 30GB hard drive and CD-ROM, users have the option of adding a second hard drive or changing the optical disc, a DVD burner, thanks to hot-swap bay. After purchase, users can also choose from a wide range of hardware configurations, including processor speed of 1.3 GHz to 1.7 GHz, up to 1 GB of memory and two screen sizes to 13.3 or 14, Select an inch.

Our test unit arrived with a Pentium M clocked at 1.4 GHz and 256 MB RAM, scored 140 points in a respectable MobileMark tests, only three under the same configuration of IBM ThinkPad X31 system. Unfortunately, as a consumer notebook, the 500 integrated graphics card is not capable of supporting 3D graphics-intensive applications and games. Compared with other offers Centrino thin and light, we tested the battery life of 3.5 hours 500 is not too impressive. But those who want a mobile workstation, the battery is relatively sufficient.

The Inspiron 500m is bundled with a basic software, Norton Antivirus and WordPerfect Productivity Pack installed. Users can choose to install Windows XP Home Edition or Professional Edition, while the systems come with CD or DVD software reference design.


dell inspiron 500m battery

Replacement For dell inspiron 500m Battery

[4400/5200mAh,11.1V (Compatible with 10.8V)] Brand new dell inspiron 500m battery rechargeable

Dell inspiron 500m laptop battery is a high quality rechargeable replacement battery which can 100% compatible with the OEM inspiron 500m battery which can works with a lot of dell notebook laptop computer. dell inspiron 500m laptop batteries are warranted for a full year to ensure your complete satisfaction.

  • Brand: dell (Not OEM)

  • Category: laptop battery

  • Chemistry: Li-ion

  • Volt: 11.1V (Compatible with 10.8V)

  • Capacity: 4400mAh

  • Net Weight: 302.5g

  • Dimension: 127.40 x 77.40 x 19.40 mm

Quick dell inspiron 500m Battery Tips

  1. Please check your original inspiron 500m battery’s OEM part Numbers apple model Numbers with our postings and picture before the purchase to make sure you get the correct battery.

  2. When you prepare to charge for your battery, make sure the temperature is around the room temperature.

  3. Store it in a cool and dry area. Do not expose battery to water or other moist/wet substances.

  4. Do not forget to take away your dell battery from the laptop if you will not use it for a long time.

  5. Please notice this: weak batteries charge faster and remain on ‘ready’ indicator longer than strong ones.Also it only be used for a short time.So do not buy a used dell inspiron 500m battery even if it is very cheap because used battery usually means weak battery.


Other Electronics News:



After the battery reverse polarity circuit fault caused by

After the battery reverse polarity circuit fault caused by

Symptom: an Isuzu car ignition switch is closed, the meter displays the normal, but the charging indicator does not light, and the ignition switch to Ⅱ file (start-file) when the starter did not respond.

Troubleshooting: Check the charge indicator, charging indicator shows normal. Because the charging light by the combination of car relay control, so the combination of relay and remove the check, also found no problems.

Combination with reference to the car wiring diagram shows the relay circuit, in the case of the engine is not running the ignition switch I closed file or Ⅱ file, the charging indicator light will be energized and illuminated by its current from the battery positive charge → → Ignition Switch LED charging indicator relay → portfolio normally closed relay contacts → Ground. After the ignition switch in the closed car charging indicator does not light, the analysis indicates that the charge should be normally closed relay contacts caused by the disconnect, so suspect at this time charging indicator relay power terminal voltage. The car charging indicator relay power AC generator in the IG received termination pillar, so decomposition of removing the alternator checked, then found that the alternator is a diode rectifier panel has short-circuit breakdown. Replace diode, troubleshooting.

Alternator rectifier board is a breakdown diode circuit, the battery current from the alternator armature will then column B + → → The alternator diode circuit, IG then charging indicator column → → Ground relay coil, so that charging indicator relay energized action, suction opening its normally closed contact, which not only cut off the charging indicator and cut off the Ground Loop Ground loop starting relays, so there will be closed when the ignition switch to the aforementioned problems.

Should be pointed out: the diode breakdown because the car driver short-circuit the battery had mistakenly reversed polarity, resulting in the battery without any load current flowing through the case of alternator rectifier diode caused.

Organic PV: 3D imagery brings a new understanding of polymer photovoltaic cells

Eindhoven University of Technology and the University of Ulm, chemical experts, experts in physics and mathematics experts, an interdisciplinary research team produced the first high-resolution 3D images to render the interior of polymer photovoltaic cells. University of Ulm in a report stressed: "By the way 3D graphics imaging, our understanding of cell structure in the nano-composite materials of information and its impact on the battery power output is significant." This study results was September 13, 2009 in the professional online journal "Nature Materials" published on.

Other Electronics News:



Canon EOS 500D Camera Review, @ DigitalCameraBattery.US Blog

Canon EOS 500D Camera Review, @ DigitalCameraBattery.US Blog


Canon EOS 500D

Canon EOS 500D - Rebel T1i or as is called in North America - is the entry of the last company in the mid-level digital SLR and successor to the popular EOS 450D / Rebel XTi. Announced in late March 2009, the 500D / T1i outwardly resembles its predecessor, with exactly the same size and weight the same, but inherits a number of high-end features EOS 50D and EOS 5D Mark II model is also second business function DSLR HD video recording.

The EOS 500D / Rebel T1i is a leap of 12, 2 megapixels of its predecessor, and the 15.1-megapixel EOS 50D semi-professional. Canon describes the sensor, as almost the same as the 50D, and it also shares the same ISO 100 to 12.800 and 14-bit processing.

Canon EOS 500D Objectives

The front of the Canon EOS 500D has a metal frame supported by the Canon EF / EF-S. This means that many cameras and lenses for the 500D. It is called the focal length is 1.6 times as a result, for example, focal length lens of 24 mm to 38 mm in practice. The grip of the Canon 500D is small but well presented. The space between the handle and the target is in a joint of a finger feeling a little hard limits. In free space, an LED is used as an indicator for the timer and red eye reduction. The choice of remote sensor is placed on the handle. More EOS logo, there are four small holes with a microphone. The button to unlock the goal is that the step just below the knob of the depth and the top left of the button for the flash (developed in the green mode, the flash pop-up automatically.)


Canon EOS 500D

Memory and battery compartment

supports the card slot is SD / SDHC placed under control. The bottom of the handle contains the battery compartment for the Li-Ion battery. When you open the compartment and the battery does not prevent the falls. The metal tripod socket is added at the bottom, just before the lens. The other side of the Canon 500D provides access to interfaces such as USB and A / V HDMI output is new and allows the Canon 500D HD monitors / TVs are connected.

Canon EOS 500D features a 3 "monitor

Canon does not seem an advocate for the survey booklet or variable angle. The Canon EOS 500D is equipped with a "normal" for LCD without additional functionality. But it seems that the growing popularity of multi-function monitors, at least, appear to competing brands to use their handsets more frequently. The Nikon D5000 has the scoop on the concerns of a standard level for Nikon and will be equipped with a variable-angle screen. Although admission to the cost of their size. And it could be important for developers of Canon. The giant screen as 3 inches from the Canon EOS 500D, on the other side is the VGA resolution that is a pleasure to see work.

In a word, Canon EOS T1i 500D/Rebel announced March 15, 2009 15.1-megapixel CMOS APS-C DSLR, the video recording at 20fps HD 1080p DIGIC 4 image processor with noise reduction at ISO best high-speed continuous shooting up to 3.4 frames per second delivery of 170 large JPEG images in a burst, 3.0-inch Clear View, Auto Lighting Optimizer for illuminating the shadows of control and increased sensitivity of ISO 100 to 3200 (extension of the standard ISO 6400, 12800) , Live View, and chamber dimensions (WxHxD) Approx. 5.1 x 3.8 x 2.4 x 97.5 x 61.9mm Weight in./128.8 - Approx. 16.9oz./480g (body).


Canon EOS 500D Battery Grip

Canon EOS 500D Battery Grip Replacement

Canon Lithium-Ion 7.4V

  • EOS 500D Grip replacement specifications:

  • Voltage : 7.4V

  • Capacity :

  • Battery Type : LP-E5

  • Dimensions : 131.27 x 103.00 x80.0 mm

Canon EOS 500D Battery Grip Replacement - Product information

  • The canon eos 500d battery grip Replacement inbox: battery grip, LP-E5 battery box, AA battery box!

  • EOS 500D Battery Grip Replacement AC charger: Input- 100V~240V AC 50/60HZ 0.5A, Output - 12.5V DC 750mA .

  • Product Type : Battery Grip Replacement for CANON EOS 450D/EOS 500D/EOS 1000D DSLR cameras.

  • The most attractive point is that the EOS 500D dslr battery grip Replacement use high capacity LP-E5 Lithium Ion battery, which makes more shots actual in one full charge and makes it a dreaming product for professional photographers.

  • The Canon EOS 500D Battery Grip Replacement equipped with a vertical-grip shutter button, command dial, AE lock/FE lock, and AF point selector button to enable shooting in the same fashion as a horizontal grip.

  • Order Canon EOS 500D Battery Grip Replacement today: Full One year waranty and 30 days money back.


Other Electronics News:



U.S. carbon nanotubes to create highly efficient solar cells

U.S. carbon nanotubes to create highly efficient solar cells

Cornell University researchers have used carbon nanotubes to replace the traditional silicon tube, to create a highly efficient solar cells.

The key is to use this technology to replace the traditional silicon-controlled carbon nanotubes made the photodiode, which is the basic component of solar cells. The researchers used different colors of laser diode of this study found that convert light into electrical energy in the process, it can double the current intensity.

The researchers said carbon nanotubes is an ideal photodiode, because it can take advantage of excess light energy, and the traditional excess solar energy is often in the form of heat loss.

The research results published in the U.S. "Science" magazine online edition. First author paper, Cornell University Graduate said: "We not only find a new material, and put it into application, solar cells made of the real."

However, the researchers pointed out that they currently only made in a laboratory high efficiency solar cells, but a new generation of cheap and reliable mass production of solar cells, still need more in-depth research.

Study found that a microbial fuel cells can be used for manufacture of high bacteria

Researchers at the University of Massachusetts has successfully isolated a large number of small surface protrusions with the bacteria, the surface processes due to their highly conductive, with the bacteria into the microbial fuel cell has more generating capacity.

AAAS website recently reported that researchers at the University of Massachusetts that the bacterium can be isolated from the graphite anode in fuel cells multiply and form a thick layer at the anode surface of the conductive membrane. The researchers explained that a large number of protruding surface of the bacteria is a protein composed of tiny fibers, they are like "nano-wires", the current can be transmitted through the biofilm, the bacteria used to make fuel cells will significantly improve the battery's power output.

As a long time, high efficiency to provide electricity, microbial fuel cells can be used for those placed in the remote environment, it is difficult often to replace the battery monitoring equipment, such as for deep-sea sensors observe the turtles.

Other Electronics News:



Lenovo ThinkPad X61 Tablet PC Review, @ Lenovo-Batteries.com Blog

Lenovo ThinkPad X61 Tablet PC Review, @ Lenovo-Batteries.com Blog

Lenovo ThinkPad X61 Tablet PC

The Lenovo ThinkPad X61 is an ultraportable business laptop geared to individuals who demand the best. Like his elder brothers of the ThinkPad line that shares the same robust features and convenience of a full-size keyboard. The X61 looks as if Lenovo ThinkPad T60 and increased by 30 percent. Although much smaller than its counterparts, it is also rapid. This model has a 7200 rpm hard drive, out of 2 GHz Intel Core 2 Duo and 2 GB of RAM. Business of light can be sure that they are not victims, but a little weight when they bring the X61 on the road.

The 12.1-inch ThinkPad X61 Tablet PC, you can exercise the power of the pen, or finger, or just the keyboard old days. It is true that with the X61 multi-touch screen allows the use of high-precision stylus force (which technology Wacom table) or you can touch the screen as an input method or can be converted to a laptop and input type. The X61 Tablet with an Intel Core 2 Duo low voltage operation can, up to 4 GB of RAM and a fast hard disk of 7200 for use, but small is not necessarily short on power.

  • CPU Intel Core 2 Duo L7500 1.6GHz

  • OS Windows Vista Ultimate

  • RAM 2GB DDR2

  • Display 12.1″ MultiView/MultiTouch XGA (1024×768) TFT

  • Graphics Intel GMA X3100 graphics, Intel 965 Express Chipset

  • Audio Integrated speakers

  • Hard Drive 100GB (7200 rpm)

  • Optical Drive None

  • I/O ports 3 x USB

  • 1 x VGA - 15 pin

  • 1 x Microphone-in

  • 1x Headphone

  • 1 x PC Card

  • 1 x SD Card

  • Communications Intel PRO/Wireless 3945ABG

  • 10/100/1000 Ethernet

  • ThinkPad 11a/b/g II

  • WLAN and WWAN

  • Bluetooth

  • Dimensions/Weight 10.8″ x 9.6″ x 1.1-1.3″

  • 3.8lbs.

  • Battery/power 8-cell Lithium Ion

The ThinkPad X61 has the more technical features of its predecessor, the X60. All X series models are matte black, which is pretty nice. X61 screen is nice. I know that many users have said that Lenovo screens are washed, but have not found that to be the case with the X61. It fades a bit when the screen is white, but colors are fine. Speakers at the X61 is honestly not very good, but much better than I expected. The keyboard is very good. It has very little flexibility. The keyboard feels solid and is stiff.Along front there is only one switch to enable / disable wireless communications permit. The right side has a four-pin FireWire port, two USB 2.0 ports, headphone and microphone jacks, a modem port and output. The left side has a pin another USB port, a VGA-15, Ethernet port, PC card slot, a rallying point for the stylus, SD card slot and silo for the pen. My computer came with the Intel Wireless WiFi Link 4965AGN Integrated Bluetooth PAN options. The screen is not black and sets a good contrast. vertical viewing angles are not very good - quickly reverses the colors in the slightest change in angle to be perpendicular to the screen. X61 fan seems to run almost constantly, but I would not say that the fortress at all costs, and rotating at a very low speed.

Lenovo ThinkPad X61 Tablet PC Battery


I would like the 4-cell lenovo thinkpad x61 tablet battery for the system is usually easier, but how, I have the greatest 8-cell battery. I have about 5 hours on battery, but it’s just so damn hard and makes the X61 to be taken seriously and maintain. Especially over long periods of time. Ultimately, I recommend that both small 4-cell battery, if you know you are interrupted for a short time and can be easily calculated. If you know you are cross or the battery needs more than 4 hours, then the 8-cell is the weapon of choice.

I am very happy with my battery. It’s funny because my phone has terrible battery must be recharged every night. The battery in my computer, by comparison, seems almost the same, which is surprising for a team. The computer is actually more hours on the phone will be hours of conversation. In the default configuration, the battery indicator shows 4:16 hours remaining with a load of 96%. The framework for maximum battery life, the screen dark, but inside is still readable (but not very comfortable) and the left shows 05.11 hours. If the wireless off, it shows 5:22 hours left and I have the 8-cell battery.

NOTE: This is the expected life of the lenovo battery from the Power Manager ThinkVantage delivered. I have only run the battery down a few times. Overall I am very satisfied with the autonomy of the X61 is satisfied.


Other Electronics News:



Investment to be rational decision-making thin film solar cells

Investment to be rational decision-making thin film solar cells

Solar photovoltaic power generation in the near future not only to replace part of conventional energy sources, and will become the world's main energy supply, energy development will bring about revolutionary change. Joint Commission of the European Research Centre (JRC) has forecast that 21st century, renewable energy in the energy structure will account for 80% or more, which accounted for more than 60% of solar power, fully demonstrating its important strategic position.

Domestic and foreign markets will be substantial growth in the long-term

The international financial crisis, national efforts to cut government subsidies, credit policy contraction is expected the next two years will be the world's new PV capacity growth has slowed. According to Display bank's latest forecast by the world economic downturn, demand reduction, the investment slowdown, the next two years, the global PV market size and growth rate were lower than previously forecast, but the PV industry as a future energy industry development The main trend has not changed. After 2011, growth will accelerate PV market, the annual compound growth rate of more than 60% of the expected market demand in 2013 will reach 37GW. Including Germany, Spain, the United States, Italy and Japan will remain the combined share of 85% or more, still the major demand areas.

According to the National Center for Photovoltaic forecasts to 2020 the total installed capacity will reach the global PV 70GW, that the world photovoltaic industry has broad market space. 2020, PV costs can be reduced to 10 cents less per kilowatt hour, almost the entire electricity market are competitive. With the reduced cost of solar cells, MW PV power station level will continue to appear.

After 2030, the cost of photovoltaic power generation will continue to decrease, the battery will further increase the conversion efficiency, photovoltaic system components will be developed into a common building components, can achieve large-scale standardized application, almost all new construction will be installation of light V array. The EU hopes to install in 2030 increased to 200GW of photovoltaic power generation equipment around the world may reach 1000GW.

According to statistics, by 2002 the domestic photovoltaic power generation capacity has been hovering at around 5MW. 2002 to 2004, the domestic PV market to rise significantly. 2008 to 2050MW of solar cell production jumped first in the world, but the capacity is only 20MW, manufacture of solar cells in China almost all exports. Estimated that in 2008 China's total installed capacity to 115MW. PV applications in China is still dominated by independent system, the proportion of grid-connected photovoltaic power generation applications also very small.

Energy production and consumption in China is a big country with rapid economic growth and the acceleration of industrialization, China's rapid growth in electricity demand. According to the China Electric Power Research Institute predicts that by 2010 China's electric power supply gap is 52.9GW, accounting for 7.7% of demand; 2020 to 91GW, accounting for 8.2%. Shows the growing needs of the domestic electricity market applications for the development of PV industry provides a strong support. National Development and Reform Commission in 2010 the cumulative installed PV modules and systems 450MW target. Expected installed capacity of solar photovoltaic 2008-2010 the average annual compound growth rate of 80.86%. By 2020, China's total installed capacity of PV will reach 1.8GW.

TFS features and investment trends

TFS (thin film solar cells) lower cost, increasing conversion rates, cost-effective medium, has a broad application space. From 2008 to 2013, average annual growth rate of thin-film solar cell market up to 67%, to 2013 the annual output reached 10GW, accounting for the overall solar cell market more than 20%, which is still the mainstream of amorphous silicon thin film solar cell products.

August 2008, Fujitsu announced the economy of solar global market survey, thin film silicon solar cell market in 2007 were 578 billion yen. 2012 will increase to 9.7 times in 2007, reaching 559.5 billion yen. As thin film solar cells of low prices of raw materials, manufacturing processes less so in the future is expected to significantly reduce costs.

Global manufacturer of silicon thin film solar cells are Sharp, United Solar, Bangkok Solar, Japan Kaneka Hybrid, Sunfilm, Malibu, Yutong light and so on. In 2008 the world production of silicon thin film solar cells is expected to 585MW, 2009 will grow to 1104MW, a growth rate of 88.7%.

Industry analysts and many experts have pointed out that thin film solar cell in the next 5-10 years will be about 50% average annual rate of growth in the rapidly growing solar cell industry in the overall champion. But in the silicon thin film solar cell industry must also insight into their risk. In addition to market, cost, technology risk, financing needs, supply chain organization, production and technical talent power supply has a higher threshold.

Demand in the capital, a 40MW-50MW of amorphous silicon thin film battery production facilities total investment of 10 billion yuan, while the economies of scale should be recognized 300MW-500MW. An annual capacity of 300MW plant, covers an area of 20 square meters, total investment of about 35 million.

In the supply chain organizations, products needed for the production of high light transmission rate of ultra-white glass (or coated with a transparent conductive film of the TCO glass), high purity silane, PVB film, have only limited sources of supply. How to get stable and cheap source of material, but also the main challenges facing investors.

Technical personnel has been a bottleneck in the development of thin film solar cells is one. In addition to the battery itself, structural design, analysis and detection requires a lot of professionals, the chemical vapor deposition (CVD), vacuum sputtering, laser engraved lines, and special techniques, and includes a variety of specialty gases, high water, clean air facility support systems, etc. system, require a lot of professional background and practical experience of the staff. And because a large number of projects currently under construction, competition for talent has become fiercer than ever before.

In short, each of which want to join a comprehensive analysis of their business should the opportunities and challenges faced by a rational and objective way to make their own investment decisions.

Other Electronics News:



Dell Inspiron 1750 Laptop Review

Dell Inspiron 1750 Laptop Review

Dell Inspiron 1750 Laptop

The Dell Inspiron 1750 (2211MBU) fall into the category of desktop replacements with 17.3-inch widescreen display, but in practice is not at your desk, unless they replace a business or entry level old PC. The system will not impress gamers, video editors and other users looking for a powerful, multi-media, but offers enough performance for everyday use, especially for the price. With decent battery life and a surprisingly low weight for a 17 year old laptop, the Dell Inspiron 1750 (I1750-2211MBU) is a smart choice for bargain hunters looking for a large laptop screen.

The idea that laptops are equipped with expensive large screen is also refuted the latest Dell Inspiron 1750th The laptop is configured from € 399.00, but you can quickly overcome this agreement with special requests. Well, knowing what you have to offer to the DTR-Mobile Office settings really.

Dell updates its models more or less steadily since the introduction of the Inspiron 1700 series. In terms of performance, the representatives of this series exist in the shadow of laptops XPS performance-oriented. The Inspiron 9400, a forerunner of the current range has been one of the last high Inspiron.

The current Inspiron 1750 series continues on the path to the Budget Office in a portable XL, but can be improved by Intel Penryn processors and ATI Mobility Radeon HD4330 with at least a low level of multimedia. The prices range around € 400,00 for the least costly solution to a maximum of € 700.00, everything is very impressive.

Do not deny the Dell Inspiron 1750 is cheaper in price. It rocks pretty honest product information to a beefy 320 GB HDD, 4 GB of RAM and an Intel Pentium Dual Core, under the plastic cover a bit Shonky. Turn the Dell Inspiron 1750 and have a decent enough machine for the use of basic applications, web browsing and occasional table. But in 1600 : 900 and register with a striking display of 17 inches should be able to handle video with aplomb. Unfortunately, it is not as big as we want. The pictures are decent enough, but when you have so much real estate, is to give you something, your eyes a treat.

Dell Inspiron 1750 Laptop

Main features

  • Display 17.3-inch LED-backlit with TrueLife resolution of 1366 x 768 pixels (more info)

  • Windows 7 Home Premium makes it easy for a home network and share all your videos, photos and music to create. And it can be done for free, when and where you want Internet TV Windows Media Center to watch. Get the best entertainment experience with Windows 7 Home Premium. (More)

  • Get more functionality with Windows Anytime Upgrade. This is the best way to add features to Windows 7, is only 10 minutes, requires no software or downloads, and maintain their current programs and settings files. Windows, then go through the process of upgrading.

  • 2.1 GHz Intel Pentium Dual Core T4300 (more info)

  • 320 GB hard drive

  • 4 GB of RAM installed with 800 MHz (maximum)

  • Intel Graphics Media Accelerator X4500 with up to 1750 MB shared dynamically by the system (more information) assigned

  • 1.3 megapixel Webcam with facial recognition software to automatically back up your computer when you are away. The software adapts to changing their appearance so they could wait times faster logon. There is also no need for multiple passwords for password-protected Web sites to remember.

  • 8X DVD multiformat can read / write CD-R/RW, DVD ± R, DVD ± RW, DVD ± R DL and DVD-RAM

  • 54g Wi-Fi (802.11b / g)

  • Fast Ethernet (10/100)

  • Built-in stereo speakers

  • Pre-installed software includes Microsoft Works 9.0 to work for word processing and spreadsheet and McAfee Security Center for anti-virus (with 30 days of updates)

  • Dell Dock Enjoy a cleaner desktop with this application organizer. applications installed on your PC automatically placed in easy to use categories, arranged with their heads most frequently used programs and the center.

  • Dell DataSafe online backup service offers data security and allows customers to secure data to a remote location connected via a broadband connection. Dell DataSafe Online is easy, flexible and secure. Once configured, the software for automatic backup and protection, hardware and catastrophic failure.

  • With Dell Remote Access, you can easily access photos, music, movies and much more at home with another Internet-enabled computers.

  • Dell Support Center: Centrally located, easy to use provides resources support. Ideally on the desktop of your PC with a fast connection to the service resources, and a system of criteria. It helps you keep your system up and running efficiently through automatic updates for common configuration issues.

  • 6-cell dell laptop battery

  • Dimensions: 16.4 x 10.9 x 1.6 cm (W x D)

  • Weight: 6.8 pounds

  • Warranty: One year of 24×7 Technical Support

The Inspiron 1750 does not depart from the traditional Dell laptop, a color cover, glossy black screen frame and a silver tray containing the keyboard. The notebook feels spacious without feeling bulky. It measures 16.1 inches wide by 10.5 cm deep and 1.4 cm thick along its rear edge (this figure falls to 1.1 inches thick along its front edge). The keyboard should feel flat keyboard, width, despite the presence of the numeric keypad on the keyboard is not waterproof. Much of the Inspiron 1750, the price is set after the big screen, which apparently left few resources for other functions.

dell inspiron 1750 battery


Our test vehicle was equipped with a 48 Wh dell inspiron 1750 battery (6 cells) equipped. According to Dell, the Inspiron 1750 is equipped with a 4-cell battery smaller or larger 9 cell battery with a capacity of 85 Wh.

The Inspiron 1750 has been able to make a profit of 217 minutes examining the life of the battery as long as possible (test Battery Eater Reader’s min. Brightness profile of energy saving, WLAN off) . However, the battery was standing at the minimum possible load (test BatteryEater Classic, max. Brightness, high performance profile, WLAN) was only 82 minutes.

However, the practical life for wireless operation would be of interest to the user, including 195 minutes with full brightness and a balanced energy profile, which is a little over three hours. DVD playback with the same configuration can reduce the execution time of a still reasonable 155 minutes, which should be enough for most movies.

Battery life is also impressive. With a standard 6-cell battery, the Inspiron 1750 has lasted 4 hours 5 minutes on MobileMark 2007 tests. Most widescreen laptops in a standard battery in achieving the 4:00 mark, silt closer to the mark of 3.5 hours. We believe that Dell will help screen LED backlight to save battery low.


Other Electronics News:



Knowledge of electric vehicle batteries from several major errors A

Knowledge of electric vehicle batteries from several major errors A

Electric car charging lead-acid batteries, there are several key parameters: the maximum charging voltage, float voltage, float switch current, maximum charge current. They should be how much? How to develop? Foremost among which is the maximum charge voltage, and how many for the better? And analysis of gas, filled capacity and ambient temperature, what is the relationship? As everyone on this vary, the requirements of the battery manufacturers are not the same. The maximum relative error of charging voltage range? We can not be divorced from the real work object, the blind development of surplus conventional precision. We have received notification of a service department of electric vehicles: battery charger with a voltage higher than 0.1V, the battery charge and therefore the expansion of the thermal runaway; also been informed that: set lower than the required voltage is 0.1V, the battery charge less, early retirement. The error of a few thousandths of causing such serious consequences, really miss is his fear of a thousand miles away, lead-acid batteries do indeed have such a mystery? In order to solve the problems of the electric vehicle charging mystery, do the following experiment.

With a sink full of water, the battery on the water, above the battery has a collection of gas used upside down funnel, funnel top of the gas volume can be measured with the syringe. Charged with the adjustable power supply, with two digital multimeter to measure the four half-charge current and charge voltage.

Test time is in winter, the water temperature 5 ℃. Conditions 2A is unified with the current charge, the charging voltage were used to 43V, 44V, 45V round of the loop in turn, float convert all current 400mA, the charging time of each record, including the late charge current drops with time points of data, started gassing voltage, gas analysis by time records. After charging the battery, with the precision of the very few records of discharge capacity of the power station. Charge into the battery is read out on paper in the calculation of the time between the current curve and the coordinates of the area (capacitance charging current of time is the definite integral.) Data in the table below:

Electric cars

Experimental data obtained, the most surprised is: how much power is almost filled with the charging voltage. Many people think that the low battery charge voltage will charge less, the battery will be scrapped ahead of salinization, especially in winter when low temperatures. But this test is just in the winter, the water temperature is only 5 ℃, the center of test voltage is 44V, the upper and lower bias 1V, the relative error is 2.3%. Charging with 43V and 45V in the case of electricity and emit electricity filled almost the same, and vary widely recognized by the test is to use the same set of batteries, the same charge and discharge conditions, in their turn to do the same test, the experimental data duplication same law, causal factors can be ruled out interference test data is accurate and credible. Principles from the battery point of view, as long as the charging source voltage higher than the battery terminal voltage will charge the battery until the battery active material in the conversion is complete. The maximum charge voltage, that is, by the constant current charging power supply began to shift to the constant pressure zone area, this shift is filled into the electricity from the battery itself how much reflects the number of active substances decisions, charging voltage level, is only capable of electrochemical reaction conditions, as long as the open circuit voltage than the battery will recharge the battery, the number of substances involved in the reaction can be determined by the battery itself. From this idea of understanding, is not rare that the charging voltage level has little effect on the battery capacity.

Other Electronics News: