Quote:
Originally Posted by MPaulHolmes
great idea! Hey, why does the pack have to be isolated from the charger? There is no motor and no switching 500amps or whatever.
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i think isolating the power section of the charger from the control section will reduce noise in the control section. it may not be 500A, but 30A is still significant. I didn't isolate it when i ran it with just the 555 timer supplying the pwm, but I wasn't doing any ADC conversions either.
another issue is that the battery (-) is not always at the same voltage as the rail (-) from the output of the rectifier diode. or, maybe it's never at that voltage... anyway, I think isolating the voltage measurement may make things easier.