Digital phase-locked thyristor phase-shift trigger controller

Abstract

A digital phase-locked thyristor phase-shift trigger controller belongs to the field of semiconductor converter technology, and in particular relates to a digital phase-locked thyristor phase-shift trigger controller. The invention provides a digital phase-locked thyristor phase-shift trigger controller. The present invention includes a current regulator, a voltage regulator, a power supply and a synchronous circuit, a phase-shifting circuit, a digital phase-locked pulse circuit and a pulse amplifying circuit. The reference and voltage feedback are input to the reverse input terminal of the voltage regulator for proportional integral adjustment; the output phase of the current regulator and the voltage regulator is "ANDed" and then sent to the phase shifting circuit; the output of the phase shifting circuit is connected to the digital phase lock In the pulse circuit, the phase-shifting signal is multiplied to form a trigger pulse, and the trigger pulse is finally isolated and output by the pulse amplifier circuit and the pulse transformer; the AC power output terminal of the power supply and the synchronous circuit is connected with the synchronous unit in the phase-shifting circuit.

Description

technical field [0001] The invention belongs to the technical field of semiconductor converters, in particular to a digital phase-locked thyristor phase-shift trigger controller. Background technique [0002] The trigger controller circuit is the core component of thyristor converter equipment. Thyristor converter equipment itself is a strong source of interference, especially for trigger control circuits. At present, the trigger controller circuit is generally a single-chip microcomputer and a synchronous counter circuit, and the circuit often has unstable work in the field. Contents of the invention [0003] The present invention aims at the above problems and provides a digital phase-locked thyristor phase-shift trigger controller. [0004] To achieve the above object, the present invention adopts the following technical solutions, the present invention includes a current regulator, a voltage regulator, a power supply and a synchronous circuit, a phase-shifting circui...

AI Technical Summary

Problems solved by technology

At present, the trigger controller circuit is generally a single-chip microcomputer and a synchronous counter circuit, and the circuit is often unstable in the field.

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