Lithium battery charger design and production, with schematic, PCB layout

Photocoupler

Summary:

It is powered by a 16.5V lithium battery, and there is no charger for the battery on the market, making charging very tangled. In desperation, a portable simple lithium battery charger was designed. Solve the trouble of charging.

The charger can output 100mA-1A adjustable charging current, the input voltage is VIN>18V, can be charged with 19V voltage on the notebook. The charging time is generally determined by the magnitude of the charging output current.

Lithium battery charger physical map

Lithium battery charger PCB layout

Lithium battery charger circuit diagram

See the uploading documentation for details (click to download)

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