1. Touch the switch
2. 1 hour fast charging
3. Battery remaining display (through 5LED)
4. Battery low voltage protection
UPD78F9212 application advantages:
1. Static power consumption is less than 1mA
2. MCU has built-in 4ch10bit AD for monitoring battery voltage, charging current, discharging current and battery temperature
3. MCU has built-in 8M oscillator, POC, saving peripheral circuits
The electric shaver structure diagram of this scheme:
Using UPD78F9212 as the MCU electric shaver, the product application advantages are:
1. Because the static power consumption of UPD78F9212 is less than 1mA, the battery life of this product is long
2. It can detect battery voltage, charging current, discharging current and battery temperature
3. It can save BOM cost to a certain extent.
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