Charger principle based on NEC single chip UPD78F9222

Single chip microcomputer STM32L151CCU6

1206RGB (single)

NEC tantalum capacitor TEESVP1E105M8R original spot

Photocoupler

Charger function of UPD78F9222:
1. Negative voltage, zero voltage, maximum voltage, temperature rise and other functions
2. Rechargeable lithium battery and nickel hydrogen battery
3. Automatically identify bad batteries
4. The charging current can be flexibly adjusted

UPD78F9222 product application advantages:
1.A/D conversion
2. Low current wake-up function for low voltage batteries
3. Increase battery capacity and extend battery life
4. High charging consistency

The structure of the plan:

UPD78F9222 charger solution advantages:
1. Good charging consistency
2. A high share in the mobile DVD market
3. Advanced charging algorithm to ensure efficient battery filling and battery life