Sunday, September 30, 2012

Battery Junk

Couldn't do any machining to the headlight housing this weekend, so I worked on some of the electronics.  This is a simple op-amp comparator functioning as a low voltage indicator to prevent me from over discharging the AA NiMH cells I will be using to power the headlight.  I easily yanked the circuit from the internet.  I may add additional circuitry to give a second level of battery charge, or use a different IC to give a full LED bridge displaying the power level.

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