How to judge the quality of thyristor ?
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Author:pmo646c82
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Published time: 2019-06-23
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As one of the most frequently used basic components in circuit design, the quality of thyristor is directly related to the operation safety of the whole system. Therefore, engineers are required to judge the performance and quality of thyristor before design.
If you want to judge whether thyristor has been damaged by breakdown, engineers can use multimeter to select resistance R * 1 block, then connect black pen to anode, and red pen to cathode. At this time, the multimeter pointer should not move. The red-meter pen is connected to the cathode and the black-meter pen is connected to the control pole instantaneously with the tip of the pen while the anode is not removed. At this time, the multimeter resistance indicator should be deflected to the right, and the resistance reading is about 10 ohms. If the anode is connected with the black pen and the cathode is connected with the red pen, the pointer of the multimeter deflects, which indicates that the one-way thyristor has been broken down and damaged.
