本文是第二届电力电子科普征文大赛的获奖作品，来自河北工业大学裴玉硕所的投稿。 在现代科技迅猛发展的今天，我们的生活变得越来越智能、节能和环保。而在这一切背后，有一种技术默默地发挥着重要作用——那就是脉宽调制（Pulse-width modulation,PWM）技术。

从学术角度讲, 脉冲宽度就是电流或者电压随时间有规律变化的时间宽度，平时研究主要是方波，三角波，锯齿波，正弦函数波等等，这些波形变化都是有一定规律的，方波里面一般不说脉冲宽度，而是说占空比，即在一段连续工作时间内脉冲占用的时间与总 ...

Pulse Width Modulation (PWM) is a fundamental technique in power electronics that facilitates the efficient control of power delivery by modulating the width of voltage or current pulses. This method ...

[esot.eric] was trying to drive a motor and naturally thought of using pulse width modulation (PWM) to control the motor speed. However, he found that even with a large capacitor, his underpowered ...

Doing more with less in electronics often means improving power density. One of the new areas garnering attention involves applying a variety of advanced modulation techniques, including PWM and space ...

What is duty cycle? Duty cycle is defined by the percentage of high voltage duration in a complete digital pulse. If the duty cycle is 50%, then it will remain on for exact half the duration of the ...

This application note presents BLDC motor control using sensor sinusoidal PWM modulation with Z32F128 microcontroller. It also discusses ways on how to implement sinusoidal PWM modulation and ...

How to use unfiltered PWM to drive high power loads. How to properly set the PWM duty cycle for high power loads. How to drive an incandescent lamp using PWM. Sometimes it’s necessary to drive a ...

Some of the UK’s most serious sprayer operators are turning to pulse-width modulation (PWM) systems in a bid to improve accuracy and slash chemical costs, apparently unperturbed by its £25,000 price ...