Lithium Battery Charger

STMicroelectronics to Showcase its Latest Solutions for Power-Supply Systems ...

/PRNewswire/ -- STMicroelectronics (NYSE: STM ), a global semiconductor leader serving customers across the entire spectrum of electronics applications, and a world leader in integrated circuits, will demonstrate its advanced solutions for power systems at Techno-Frontier 2011.

These solutions, which combine ST's latest technologies and system know-how, make possible both high-efficiency power conversion and power supplies, while also contributing to an energy-saving society, in which limited resources will be used more efficiently. Various demonstrations, development boards and products will be available at ST's booth.

Main solutions to be highlighted at the ST booth

Solar battery solutions

In solar-power applications, ST will demonstrate the SPV1020, a DC-DC converter IC embedded with an algorithm of maximum power point tracking (MPPT). The SPV1020 is an IC with both power optimization and power conversion functions, which can individually set the MPPT of the solar power cell, to maximize the power output from each cell. ST will also demonstrate the SPV1001 cool bypass switch, which integrates low loss MOSFETs and precision controllers to allow each solar battery cell to deliver more electricity, effectively equipping the SPV1001 with the same capabilities as bypass diodes. In addition, ST will introduce solutions for micro inverters, in which the output and power from each cell is optimized and maximized. In mobile-equipment battery chargers, ST will demonstrate the SPV1040, a battery charger IC for mobile equipment that is equipped with a solar battery panel. Unlike conventional products that control power generated by multiple solar battery cells, the SPV1040 (which can boost power from one solar battery cell) is a highly significant product; it is equipped with MPPT functionality to optimize the output of solar battery panels, in order to secure the maximum amount of power generation. In hosting the demo of the SPV1040, mobile phones will be charged by using a battery charger that is equipped with a solar battery panel.

Secondary battery solutions

In portable battery-charger applications, ST will demonstrate the STBC21, which gives total control of lithium-ion battery charging, if installed in portable electrical-equipment battery chargers or in the equipment itself.

scaling battery charger. simple as decreasing the resistance ...

Our forum is a place where thousands of students, hobbyists and professionals from around the world share knowledge and ideas. You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today ! hi, here is a schematic of a li ion battery charger and it is currently configure to charge 1 battery between 4.08v to 4.26v at 100mA. would this same setup be able to charge 3x3.7v 880mAh battery in series? i was thinking of just changing some of the value to equal the amount i need. anyone can advise me of it is a good idea or what is the best way to acomplish this? also will it still work if i use a cheaper regulator like a LM317 or equivalent? The circuit has no means to terminate charging, which is not a good thing with LiIon batteries. Also you will need a higher input voltage, probably 15V - 20V. Charging them in series always leaves you open to overcharging, especially if one battery is defective, and with LiIon this overcharging can and will destroy the remaining batteries and even possibly fire. To decrease the output voltage to 3.7V you could lower the 2M resistor to 1.67M (or you increase the 806k.) The output voltage will adjust to have 1.23V at the feedback pin. However, this circuit doesn't have a current limit. The chip itself seems to have a current limit (I had a short look at the datasheet) but I don't think it's supposed to work always under these conditions.

Compatible Accessory Kit High Capacity Rechargeable Lithium ion Battery and AC/DC Battery Charger ( Power plug ...

Compatible Accessory Kit High Capacity Rechargeable Lithium ion Battery and AC/DC Battery Charger ( Power plug ...

Compatible Accessory Kit High Capacity Rechargeable Lithium ion Battery and AC/DC Battery Charger ( Power plug &...

Compatible Accessory Kit High Capacity Rechargeable Lithium ion Battery and AC/DC Battery Charger ( Power ...

Compatible Accessory Kit High Capacity Rechargeable Lithium ion Battery and AC/DC Battery Charger ( Power plug ...

Encyclopedia of Electronic Circuits

PRECISION Li-ION BATTERY CHARGER JL LT1510 Constant-voltage/ constant-current battery charger Vout=12.3V -o R1 R1=R4(¥ourVre|)/Vret _]+_ R2=(R1+R4)-K R3 ...

Mobile Handset Design

Li-Ion (Lithium-Ion): These are considered the most advanced and widespread ... 10.17.3 Battery Charger Circuit Generally, the mobile-phone batteries are ...

Electrical design news

In this application, the MIC2179 is configured to provide both constant-current and constant- voltage for a 1-cell lithium battery charger. ...

The modern power supply and battery charger circuit encyclopedia

1 Battery Chargers and Zappers The sources of the following circuits are ... NiCad Battery Charger Lithium Battery Charger Rapid Battery Charger for Icom ...

Troubleshooting and Repairing Camcorders

Lithium batteries The lithium battery is used in some camcorders for backup ... not charge The battery might be used up or the battery charger is defective. ...