Silicon controlled rectifier manufacturer to teach you how to identify thyristor
module three pole?
Identify the thyristor module three pole method is very simple, according to the P -
N junction principle, as long as with a multimeter to measure the resistance between three pole.
Thyristor module between anode and cathode in more than a few hundred thousand the forward and reverse resistance, anode and control between forward and reverse resistance in hundreds of thousands of the above (
There are two P - between them
N junction, and in the opposite direction, so that the anode and the control to speak very positive and negative)
Thyristor control module is a P - between pole and the cathode
N junction, so it is about in a few European - resistance
The scope of the hundreds of the reverse resistance is bigger than forward resistance.
But control diode characteristic is not very ideal, the reverse is not completely in the blocking state, there can be a larger electric current passes through, so, sometimes measured thyristor module control reverse resistance is small, do not tell the control features extremely bad.
In addition, when measuring control is very positive and negative to the resistance, multimeter should be on 10 or R * R * 1 block, to prevent the reverse breakdown voltage control is extremely high.
If measured thyristor, Yin and Yang are very positive to have a short circuit, or anode and control extremely short circuit, or reverse short circuit control pole and the cathode, or control pole and the cathode circuit, thyristor is damaged.
Thyristor module knowledge relevant to the more welcome to visit the website.
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