PWM (Single Phase)


Category: eMotors > Other Tools > PWM

The PWM (Single Phase) block<tbs. will the parentheses be removed>  provides a pulse width modulated signal based on the input carrier frequency and % modulation.

Modulation%: Indicates the percentage of carrier frequency cycle in which pulse is active (high) from 0 to 100%.

Carrier_freq: Indicates the base frequency of modulation carrier signal in hertz.

Output: Indicates the pulse width modulated output scaled 0 to 1.


Diagram name: PWM Single Phase

Location: Examples > eMotors > Brush DC

In this example, the PID Controller (Digital) block is configured as PI and saturation limits are set for 0 to 100 for anti-windup control with the PWM logic. A modulation frequency is chosen at 3000 Hz, and the gain of 250 represents voltage switching at 250 V, controlled by the PWM. Velocity is measured from the load using a tachometer and fed back to the PI compensator.