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低电压如何控制高电压？利用控制变压器实现各个等级的低压控高压
讲解低电压控制高电压电路原理，隔离变压器将220V转换为36V，引入控制变压进行电压等级的变化，讲解低压控制高压的安全性！
零基础学电工-教材加实物讲解27/58
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