Saturday, October 22, 2011

Under voltage detector li ion added trimpotmeter

I added a thermal switch from a defect power amplifier, to shutdown power drill tool, i overheaded.

The circuit works and disable the out put when voltage from battery get down to 12 Volt and  below

Circuit cut of the load until Li ion battery are re charged

I added a trim potmeter to make the adjustment easyer, i will glue the trim pot to hold the setting.

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