Step 1: Enter load voltage and current to determine minimum required inductance for continuous current operation (60Hz full-wave rectification).

Step 2: Enter actual value of choke inductance and it's internal equivalent series resistance (ESR) plus resistance of transformer secondary winding to determine minimum required capacitance for damped operation. Note, adding external resistance in series with the inductor lowers the required capacitance.

Step 3: Enter actual value of capacitor (in uF) to determine resulting output ripple voltage.

Step 4: Required input voltage from transformer secondary is: