상황
Designing a power circuit for a wireless computer mouse that uses a rechargeable Li-ion battery and includes charging management.
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01
Choose USB as charging source (5V)
02
Use a Schottky diode for reverse polarity protection
03
Implement linear charging with a current-limiting resistor
04
Include a power switch to disconnect battery when off
05
Add decoupling capacitors for noise reduction
When building or understanding the power section of small battery-powered consumer devices like wireless mice, keyboards, or wearables.