PWMpõhine

PWMpõhine refers to a system or device that utilizes Pulse Width Modulation (PWM) as its primary operating principle. Pulse Width Modulation is a technique used to control the average power delivered to an electrical load by switching the supply voltage on and off rapidly. The "width" of the pulse, or the duration for which the voltage is on, is varied to control the amount of power. By adjusting this pulse width, the output can be made to appear as a steady voltage or current, even though it is actually a series of on-off pulses.

In a PWMpõhine system, this modulation is fundamental to its functionality. Common applications include controlling the speed of electric motors, dimming LEDs, controlling the position of servos, and regulating the output of power supplies. The effectiveness of PWM lies in its ability to provide efficient power control. Unlike linear voltage regulators which dissipate excess energy as heat, PWM systems rapidly switch power on and off, resulting in much lower energy loss and higher efficiency, especially at partial power outputs. The frequency of the switching also plays a crucial role in the performance of a PWMpõhine system, influencing factors like smoothness of control and electromagnetic interference.