MOSFET loss calculator
Estimate conduction, switching, gate-drive, output-capacitance, reverse-recovery, body-diode, and thermal losses.
Understand the loss modelEach tool opens the same validated calculation engine with a relevant starting configuration. Inputs stay in your browser, and the result can be traced through equations, substituted values, device losses, ripple, thermal estimates, and waveforms.
Estimate conduction, switching, gate-drive, output-capacitance, reverse-recovery, body-diode, and thermal losses.
Understand the loss modelCompare rise/fall-time, measured-energy, Qgd/gate-current, and manual switching-loss methods.
Choose a switching methodEstimate system gate-drive power and, in Qgd mode, gate current and transition time using entered driver impedances.
Review gate-drive equationsScreen primary-bridge conduction, current stress and thermal margin with a hard-switching envelope; tank-derived ZVS loss is not modeled.
Open the LLC guideSize a first-pass CLLC tank and review forward/reverse gain coverage, frequency range, circulating current, and ZVS.
Open the CLLC guideRank public device candidates at one operating point without sending part numbers or engineering values to a server.
Compare candidate tradeoffsDesign and evaluate RC snubbers from measured switching-node ringing, with damping, peak-voltage and loss trade-offs.
Open the RC Snubber Designer