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Current from an AC Capacitor

2018-02-28 21:05  
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When acapacitorand aresistorare connected to AC lines, a constant current can be maintained through the resistor, so long as theRectanceof the capacitor is greater than the resistance of the resistor. The current flow depends on the value of the capacitor assuming that the input voltage is greater than the output voltage.

The current through the resistorRis

I RMS = V1 x X C

WhereXCis the Rectance

As a rule of thumb, 70 – 75 milli amperes current will be available per uF from an AC capacitor

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