PWM means Pulse Width Modulation. It is a way of controlling power by turning a signal on and off very quickly. By changing how long the signal stays on, PWM can make a device seem stronger or weaker.
People use PWM in many everyday devices, like LED lights, fans, motors, and electronics. For example, it can help dim a light, control motor speed, or save energy in a simple and efficient way.
Meaning & Usage
PWM works by adjusting the “on” time of a signal compared to the “off” time. A longer on time gives more power, while a shorter on time gives less. This makes it useful when you want smooth control without changing voltage in a complicated way.
Examples
For example, a fan may use PWM to run slowly or quickly. An LED light may use PWM to dim without changing the color. Many machines and electronic devices use it behind the scenes.
What is PWM used for?
PWM is used to control things like light brightness, motor speed, and power delivery in electronic devices.
Why is PWM useful?
It is useful because it gives accurate control and often wastes less energy than other methods.
Is PWM common in daily life?
Yes. You may not notice it, but PWM is used in many home electronics, appliances, and car systems.
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