Power Electronics Calculator

Design and analyze DC-DC converters with comprehensive calculations for switching frequencies, component sizing, efficiency analysis, and power loss estimation.

Buck Converter (Step-Down)

The Buck converter steps down the input voltage to a lower output voltage. The output voltage is always less than the input voltage, making it ideal for voltage regulation applications.

Input Voltage (V)

Output Voltage (V)

Output Current (A)

Switching Frequency (Hz)

Current Ripple (%)

Voltage Ripple (%)

Advanced Parameters

Switch Rds(on) (Ω)

Diode Vf (V)

Key Design Equations

Inductance:

Capacitance:

Power Electronics Design Guide

Buck Converter

• Step-down voltage regulation
• High efficiency (>90%)
• Continuous input current
• Low output voltage ripple

Boost Converter

• Step-up voltage regulation
• Continuous input current
• Higher output voltage ripple
• Right-half-plane zero

Buck-Boost

• Step-up or step-down
• Inverted output polarity
• Discontinuous input current
• Higher component stress