Use this electronics calculation for a first-pass component, converter, signal, motor, or sensor estimate when the stated operating conditions and units match the device data.

Turn On Energy (J) (J)

Required number input.

Turn Off Energy (J) (J)

Required number input.

Switching Frequency (Hz) (Hz)

Required number input.

Calculate average power-module switching loss from per-event turn-on and turn-off energies times switching frequency. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Switching Loss (W) (W)

The resulting switching loss (w) returned as a number.

• Power-supply ripple, hold-up, inrush, efficiency, and loss calculations depend on line range, load transient, switching mode, capacitor bias and ESR, rectifier conduction interval, control limits, temperature, and component tolerance. Safety, stability, EMI, and fault behavior require separate verification.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check the result against the current datasheet and worst-case operating corners, then verify the circuit or measurement with simulation and bench testing where failure matters.

• Power Module Loss Conduction

  Estimate resistive power-module conduction loss as RMS current squared times hot on-state resistance; use the operating-temperature resistance.

• GaN HEMT Rds On Tempco

  Calculate average GaN HEMT on-resistance temperature coefficient as percent change per Celsius degree between two measured temperatures; this is not a local derivative.

• Antenna Radiation Efficiency

  Calculate radiation efficiency as radiated power divided by accepted power ×100. Mismatch loss before power is accepted at the antenna port is not included.