Dephasing superpower thyristor pulse trigger

Abstract

The invention discloses a dephasing superpower thyristor pulse trigger, comprising a power supply module, a pulse formation module, a pulse amplification module and an external signal collection module, wherein the power supply module provides direct current work power supply for the pulse formation module, the pulse amplification module and the external signal collection module; the external signal collection module provides adjustable dephasing control voltage signals and synchronous signals of pulse formation for the pulse formation module; the pulse formation module synthesizes the adjustable dephasing direct current voltage signals and synchronous signals of pulse formation to obtain a dephasing trigger pulse signal array which is transmitted to the pulse amplification module to amplify the signals; and the pulse amplification module amplifies the trigger pulse array signals formed by the pulse formation module, and then transmits to a rectifying device to perform reliable trigger breakover on corresponding thyristor. The invention can overcome the technical problems of insufficient output power better and poor output signal stability caused by being easily interfered by external signals and the like.

Description

technical field [0001] The invention relates to high-power semiconductor power electronics technology, in particular to a pulse trigger circuit of a phase-shiftable high-power thyristor rectifier device applied to a high-power rectifier device in the locomotive and vehicle field. Background technique [0002] When carrying out the type test and routine test (factory test) of the locomotive high-power rectifier (silicon unit), it is necessary to provide the high-power thyristor of the rectifier with a trigger pulse signal synchronized with the input voltage of the rectifier (silicon unit), and pass The phase shift of the trigger signal is used to realize the controllability of the output power of the rectifier. At present, many high-power thyristor trigger pulse signals in the industry are generated by digital circuits combining software and hardware, or by combining ordinary signal generators with power amplifiers. The significant disadvantages of generating trigger pulses ...

AI Technical Summary

Problems solved by technology

[0007] The invention provides a phase-shiftable high-power thyristor pulse trigger device, which can well overcome technical problems such as insufficient output power, susceptibility to external signal interference, and insufficient output signal stability.

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