A method of encoding information based on variations of the duration of carrier pulses. Also called pulse duration modulation (PDM).

Abbreviation for pulse-width modulation, which is a deprecated synonym for pulse-duration modulation.

(Pulse Width Modulation)

A type of AC adjustable frequency drive that accomplishes frequency and voltage control at the output section (inverter) of the drive. The drive's DC bus voltage is always a constant amplitude an [..]

See Pulse Width Modulation.

Pulse width modulation. An acronym which describes a switch-mode control technique used in drives to control motor voltage and current. This control technique is used in contrast to linear or step wav [..]

 Inverter high-frequency chopping technique using a means of regulation enabling rapid modification of pulse widths over a single period, thus making it possible to maintain the inverter output within tolerances even for non-linear loads.

Pulse Width Modulation. AMC drives use PWM to control the current to the motor. By changing the Pulse Width (duty cycle) the output voltage and current can be controlled.

Pulse Width Modulation

Pulse Width Modulation. The square-wave signals used in RC control to drive servos and speed controllers. There is one PWM signal for each channel. The width varies from 1000 to 2000 microseconds, dep [..]

Pulse Width Modulation. Switch-mode technique used in amplifiers and drivers to control motor current. The output voltage is constant and switched at the bus value (160 VDC with a 115 VAC input line).