Calculators

Deterministic, unit-aware calculators for motor characterization, control loop tuning and power stage sizing.

Motor Fundamentals

Convert between the back-EMF constant (Ke) and torque constant (Kt) of a PMSM or BLDC motor.

Convert Ke, Kt and flux linkage across RMS/peak, phase/line-line and speed-basis datasheet conventions, with every assumption stated explicitly.

Convert mechanical speed to electrical speed and frequency using the motor's pole pair count.

Compute electromagnetic torque from d/q-axis currents, flux linkage and inductances.

Estimate rotor flux linkage from the back-EMF constant and pole pair count.

Derive Kp and Ki gains for a current controller using pole-zero cancellation and a target bandwidth.

Convert ADC sample voltage to phase current for shunt-based current sensing front ends.

Estimate winding temperature from cold and hot resistance measurements using the resistance method.

Calculate three-phase winding copper loss from RMS phase current and phase resistance.

Estimate available inverter voltage under SPWM/SVPWM and the resulting ideal vs. loaded motor base-speed limits.