Flyback Converter Calculator

Design isolated flyback DC-DC converters. Calculate turns ratio, primary inductance, peak current, and output capacitor.

Input Voltage Vin(min) (V)

Output Voltage Vout (V)

Output Current Iout (A)

Switching Frequency fsw (kHz)

Max Duty Cycle Dmax

Turns Ratio Nps (Np:Ns)

Ripple Current Ratio r

Output Ripple Target ΔVout (mV)

Reflected Voltage VOR--

Primary Inductance Lp--

Peak Primary Current--

Secondary Peak Current--

Output Capacitor C--

Output Power--