17 lines
496 B
Markdown
17 lines
496 B
Markdown
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---
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title: SPWM
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updated: 2022-01-12 02:36:56Z
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created: 2022-01-10 03:35:59Z
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---
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# 定义
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SPWM:Sinusoidal Pulse Width Modulation，正弦脉冲宽度调制。
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# 与PWM的区别
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- PWM是脉冲宽度调制，也就是具有一定脉冲宽度的连续的方波组成。
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- SPWM是在PWM基础上用正弦波来调制合成的具有正弦波规律变化的方波
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SPWM就是正弦波等效于一系列等幅不等宽的矩形脉冲波形，其脉冲宽度有正弦波和三角波自然相交而成
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