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TCA785 TCA785可控硅移相触发器是西门子公司生成的单片可控硅移相触发电路。它能够输出两路相位差180°的移相触发脉冲,且触发脉冲可在0~180°之间任意移动。该电路主要用于各种变流设备中触发单双相可控硅,亦可......
Any number of normally open switches may be used. Fit the mercury switches so that they close when the steerin......