Li-Ion batteries charger circuit?

[7rots51]

atmega406

Hello

What chips are used for charging Li-Ion batteries(that used in mobile cell phones)?
what protectors are used?

 

[budhy]

lithium ion battery charger circuit

take a look at :

:arrow:AVR450: Battery Charger for SLA, NiCd, NiMH and Li-ion Batteries (43 pages, revision C, updated 09/06)
:arrow:Code
This Reference Design is a battery charger that fully implements the latest technology in battery charger designs. The charger can fast-charge all popular battery types without any hardware modifications. The charger design contains complete libraries for SLA, NiCd, NiMH and Li-Ion batteries.

:arrow:AVR453: Smart Battery Reference Design (37 pages, revision C, updated 02/06)
:arrow:Code
This application note describes the implementation of a smart battery using the Atmel ATmega406 microcontroller. The ATmega406 AVR microcontroller has been created with smart battery applications in mind. The feature set includes high accuracy ADCs, a TWI interface for SMBus communications, as well as independent hardware features that can protect the battery from incorrect use.

:arrow:AVR454: Users Guide - ATAVRSB100 - Smart Battery Development kit (20 pages, revision D, updated 06/06)
This document describes the ATAVRSB100 smart battery development kit. The SB100 is designed for evaluation of the Atmel AVR ATmega406, which is designed for smart battery applications. The ATmega406 is designed for 2, 3 or 4 cell Lithium-Ion battery packs.

 

[al37]

atmega406 circuit

Hello,

https://www.ni-cd.net/accusphp/chargeur/realisation/liion.php
Use systran for traduction.

See the LM3420 document for analog circuit.

See this link: **broken link removed**
"Battery Management" You have your choice.

Al

 

[vaibhav.k]

atmega406 nimh

hi go to TI site they have very good Li-ion chargers with design examples BQ2000 series is there which proven.
Another solution is go to micrel site.They have Li-ion charger in very small package.Also Linear having same