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Power/Alternative Energy??

Automatic Charge Reduction (CHR) function solves issues with Li-ion battery charging from USB ports

Posted: 29 Apr 2008 ?? ?Print Version ?Bookmark and Share

Keywords:cellphone charging? consumer electronics? automatic charge reduction? AnalogicTech application note?

The convenience of charging single-cell Li-ion battery-powered portable products is a desirable feature that many design engineers will incorporate into their new devices. Highly integrated portable productssuch as cellphones, PDAs, MP3 players and digital still camerasare powered by single-cell Li-Ion batteries and use a computer's USB port to transfer data files. A USB port provides bidirectional data transfer, as well as power and ground, from the host system. Using a USB port as a charging power source allows a user to simultaneously download or update files and recharge the battery for their portable product.

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