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整流用简单的二极管就行乐,为啥要用可控硅?用改变可控硅导通角来改变输出电压会对电网产生干扰,而且只能带电阻或电容型负载.从直流再变到交流,直流是滤波后的吗?如果是,普通的可控硅如何关断?可关断的可控硅极贵.我从12岁开始接触无线电,现在也好多年没玩儿了,但很有兴趣
eglington
(eglington)
(#82825@0)
Last Updated: 2001-5-28
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急问. 我应该带的变压器是110V->220V ?? 还是 220V->110V 的 ??!!
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