搜索 - 科创

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忘了以前测试的时候有没有接控制线了，记得上次有2.几V的电压，今天电压出来一下就没了，再接就一直没电压。。。。等找到原因再继续出吧，晕死了

标称48v/200ma是指输出200mA的时候输出电压是48V，你用万用表测量的时候，输出电流为零，此时测得的电压是峰值电压，即48*1.4，如果只接50V的电容，肯定是不合适的，电容是否会爆，就看你的运气了

引用第20楼switchmode于2009-05-30 22:49发表的 :50Hz工频交流电对心脏的作用相当于1.5倍电压的直流电直流电的安全电压是36V工频交流电的安全电压是24V（可能知道的人不多

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