Power electronics calculators for converters, batteries, heat, current, wires and voltage regulators.
Estimate battery runtime from capacity and current consumption.
Calculate resistor value for Zener diode regulator circuits.
Estimate duty cycle and inductor value for buck converters.
Estimate duty cycle and inductor value for boost converters.
Calculate transformer turns ratio and winding values.
Calculate electrical power from voltage and current.
Estimate temperature rise from power and thermal resistance.
Estimate wire cross-section by current.
This calculator is used for quick electronics engineering estimates, formula checks and early circuit design decisions.
The result is based on the displayed formula and input values. Real hardware can be affected by tolerances, temperature, layout and component limitations.
Use it as an engineering estimate. Always verify final production designs with datasheets, simulations, manufacturer recommendations and measurements.
Useful articles for this engineering category.
Power Electronics Calculators is an engineering topic related to power design. It helps designers estimate values, avoid common mistakes and choose practical design parameters.
Real results differ because of tolerances, temperature, PCB layout, parasitics, cable losses, power supply behavior and measurement conditions.
Use formulas and calculators as a starting point, then verify with datasheets, simulations, prototypes and real measurements.
Heat comes from power loss, voltage drop, switching loss, conduction loss and insufficient thermal dissipation.
Use generous margin for voltage, current and temperature. For production designs, verify worst-case conditions and derating requirements.