What does PWM stand for?

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Multiple Choice

What does PWM stand for?

PWM stands for Pulse Width Modulation. It controls how much power a load receives by turning the voltage on and off at a fast, fixed frequency, while changing how long the signal stays high during each cycle. The length of the high portion of the cycle is the duty cycle—a higher duty cycle means more average power. This lets you precisely adjust things like motor speed or LED brightness without altering the supply voltage. The other phrases aren’t used in practice; they don’t describe the method of varying the on-time within each cycle to control average power.

PWM stands for Pulse Width Modulation. It controls how much power a load receives by turning the voltage on and off at a fast, fixed frequency, while changing how long the signal stays high during each cycle. The length of the high portion of the cycle is the duty cycle—a higher duty cycle means more average power. This lets you precisely adjust things like motor speed or LED brightness without altering the supply voltage. The other phrases aren’t used in practice; they don’t describe the method of varying the on-time within each cycle to control average power.

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