Thyristor module two-way thyristor | | | silicon controlled rectifier module

by:Positioning     2020-11-24
How to check the stand or fall of bidirectional thyristor: two-way thyristor as an electronic switch, can control the ac load ( Such as incandescent light bulbs) On and off, according to destroy the light of incandescent lamp, can judge of bidirectional thyristor. Will any end of the 220 v ac power to T2, the other end with a 220 v, 100 w bulb T1. Trigger circuit is composed of switch S and door limit flow resistance R. Small S selection pressure 220 vac toggle switch or pull switch. R the resistance from 100 ~ 330 Ω, R value obtained is too large, will reduce the conduction Angle. Below a salt inspection steps: first step, first will disconnect, S bidirectional thyristor turn-off, lamp shall be put out. If normal light bulb, the bidirectional thyristor T1 - T2 electrode short circuit, pipe scrap; T1 - if bulb light shine T2 leakage current is too large, poor performance of the pipe. In the above two situations, should stop the test. The second step: make S, because the gate on the trigger signal, so only a few microseconds, bidirectional thyristor that guide all incandescent lamp with alternating current through the normal light. The specific working process of the analysis are as follows: in the positive half cycle of alternating current (ac), Ua> Ub, T2 is positive, T1 is negative, G relative to the T2 is negative, the bidirectional thyristor according to T2 - The direction of the T1 conduction. Set in the negative half cycle, of the alternating current (ac) Ua. Bidirectional thyristor module true experts, in order to your satisfaction, we really heart. If interested in our two-way thyristor module or there is doubt, welcome your consultation.
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