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ntlxfei18
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樓主  發(fā)表于: 2018-03-24 21:48
請教大家，用pwm來(lái)控制固態(tài)實(shí)現加熱或控制電機轉速。實(shí)際就是控制固態(tài)的通斷。那和直接開(kāi)關(guān)來(lái)控制固態(tài)的通斷有什么區別呢。   我知道pwm是通過(guò)占空比來(lái)實(shí)現控制的，但是想不透徹。還請大家指點(diǎn)迷津。謝謝。。。
nightblueblu
道阻且長(cháng)，窮且益堅。
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1樓  發(fā)表于: 2018-03-27 16:03
固態(tài)繼電器可以比較高的頻率通斷   至少比接觸器高很多   無(wú)火花  無(wú)噪音  缺點(diǎn)是發(fā)熱比較厲害    還有就是選擇的話(huà)容量盡量大

點(diǎn)  特別是感性負載
Your happiness is everything.

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