In electronics, what does PWM stand for?

In electronics, PWM stands for Pulsed Width Modulation. This technique is widely used for controlling power supplied to electrical devices, especially in lighting and motor speed control applications.

PWM works by varying the width of the pulses in a pulse train to control the amount of energy delivered to a load without dissipating heat, as it can switch on and off rapidly. The average voltage and current can be adjusted by changing the duty cycle, which is the ratio of the time the signal is high (on) to the total time of the cycle. This method is efficient in regulating power while minimizing loss, making it a preferred choice in many applications such as motor control, heating control, and light dimming.

The other options do not reflect established terms or techniques in electronics. Pulsed Width Modulation is the standard terminology used in the industry to describe this method of modulation.