Re: Calculating Capacitor Size

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#21124
Windell Oskay
Keymaster

@BenLee3000: @firemankurt wrote “What is the formula to figure capacitor size when a 2v drop over 500milliseconds is desired on disconnect of a circuit where 4A is being drawn from an original 12v power source?”

If the initial voltage was 12 V at time t = 0, and it drops by 2 V in 500 ms, then V(t = 500 ms) = 12 V – 2 V = 10 V.