Silicon controlled rectifier tester

Abstract

The invention provides a silicon controlled rectifier tester comprising an isolation step-down transformer, a static test circuit and a dynamic test circuit. The dynamic test circuit comprises a rectification circuit, a trigger circuit, a double-throw switch and a display circuit. The static test circuit comprises a rectification filter circuit and a voltage-stabilizing circuit. The input end of the isolation step-down transformer is connected with a power supply via a fuse, and the output end is respectively connected with the input ends of the display circuit and the rectification filter circuit. The output end of the display circuit is connected with the fixed end of one side of the double-throw switch through the rectification circuit and the trigger circuit in turn. The output end of the rectification filter circuit is connected with the fixed end of the other side of the double-throw switch through the voltage stabilizing circuit, an indicating lamp and a trigger switch in turn. The connecting end of the static test circuit and the dynamic circuit is the cathode test end of a silicon controlled rectifier. The moving ends of the double-throw switch are respectively the anode test end and the control electrode test end of the silicon controlled rectifier. The silicon controlled rectifier tester is small in size and low in weight, and the silicon controlled rectifier is tested via a static and dynamic combination mode so that the test is simple and reliable, maintenance quality and working efficiency of the silicon controlled rectifier can be enhanced and safety of maintenance personnel can be effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of silicon controlled silicon testing, in particular to a silicon controlled silicon tester. Background technique [0002] Thyristor, also known as thyristor, is a high-power switching semiconductor device. There are several types such as one-way, two-way, turn-off and light control. It has small size, light weight, high efficiency, long life, and convenient control. Advantages, it is widely used in various automatic control and high-power electric energy conversion occasions such as controllable rectification, voltage regulation, inverter and non-contact switch. The main parameters of thyristor: trigger voltage, trigger current, conduction current, conduction voltage, etc. are generally measured by thyristor test instruments. [0003] At present, the thyristor test instruments used in the market have problems such as large size, heavy weight, and difficult operation. Moreover, most of the thyristor te...

AI Technical Summary

Problems solved by technology

[0003] At present, the thyristor test instruments used in the market have problems such as large size, heavy weight, and difficult operation.

Moreover, most of the thyristor testing instruments use the thyristor to directly obtain power from the mains to provide the trigger voltage and trigger current for the thyristor. Security risks, and its testing process is cumbersome and time-consuming

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