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Battery charger circuits electronic circuits design

Simple and complex battery chargers electronic circuits design projects and schematics with diagrams and description for various battery type.

LTC4012 battery schematic charger

This battery charger circuit diagram is a very simple high efficiency switchmode battery charger circuit based on the LTC4012 IC , manufactured by Linear Technology Corporation .
This charger support supports Li-Ion/Polymer, NiMH, NiCd and sealed lead acid battery chemistries in single and multicell configurations.
When the LTC4012-3 is charging, the voltage on the PROG
pin varies in direct proportion to the charge current. The nominal PROG voltage is given by: VPROG=(ICHRG x RSENSE x RPROG/RIN) +11.67uAxRPROG

Electronic Circuits: 

LTC4098 Li-Ion Polymer battery charger

Using the LTC4098 USB Power-Path controller you can design an high efficiency , full-featured Li-Ion Polymer battery charger using few external electronic components . This Li-Ion Polymer battery charger circuit can be used with many power distribution sources like: USB, wall adapter, automotive, Firewire or other high voltage DC/DC converters, and a Li-Ion/Polymer battery.

For automotive and other high voltage applications, the LTC4098 interface with a Linear Technology external switching regulator to provide a high efficiency high voltage power path.

Electronic Circuits: 

MAX8844 lithium ion charger

Using the MAX8844 lithium ion charger IC released by Maxim Semiconductors you can design an very simple and efficiency charger circuit for charging a single cell lithium-ion battery .
The MAX8844 lithium ion charger integrate a current-sense circuit, MOSFET pass element, thermal-regulation circuitry, and eliminate the external reverse-blocking Schottky diode to create the simplest and smallest charging solutions for handheld equipment.

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