Trigger power supply capable of following temperature characteristic of thyristor

Abstract

The invention relates to a trigger power supply capable of following a temperature characteristic of a thyristor. The trigger power supply comprises a rectifying filter, a PWM (Pulse-Width Modulation) inverter, an output rectifying filter, an output voltage stabilizer, a temperature-change voltage sampler, a temperature-change resistance network and a feedback circuit. The trigger power supply is capable of automatically adjusting the size of a trigger current by following the temperature characteristic of the thyristor within a working temperature scope of the thyristor, so as to cause the trigger current to be close to an optimum value, so that the heat productivity of related elements at high temperature is reduced, the triggering reliability is ensured and the triggering power at high temperature is efficiently reduced.

Description

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AI Technical Summary

Benefits of technology

This invention relates to an automatic control system for controlling the flow of electricity through certain devices such as transistors or diodes used with them during operation. By doing this, it helps prevent damage from overheating these parts while still ensuring that they are able to operate properly under extreme conditions. Additionally, there's no extra component needed which makes the device more expensive than usual.

Problems solved by technology

Technically speaking, this patented technical problem addressed in this patents relates to improving the efficiency and effectiveness of an electric arc furnace (EAF). Current methods for controlling the EAF's ignition system require expensive equipment such as inductors with very heavy weight due to their size. Additionally, these techniques have limitations where they can be used effectively without overheated electronic devices being damaged during operation under extreme conditions.

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