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High frequency arc ignition circuit with direct current voltage output

A high-frequency arc striking, DC voltage technology, applied in arc welding equipment, manufacturing tools, welding equipment, etc., can solve the problem of weak arc striking ability, and achieve the effect of quick action, easy arc striking, and improved arc striking performance

Inactive Publication Date: 2015-05-13
广东世博科焊接工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high frequency arc starting circuit with DC voltage output, which can improve the arc starting ability of the welding machine, and aims to solve the technical problem of weak arc starting ability of the existing high frequency arc starting circuit

Method used

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  • High frequency arc ignition circuit with direct current voltage output

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Embodiment

[0016] Such as figure 1 Shown, the present invention comprises high-frequency signal source, relay J1, voltage doubler circuit and high-frequency boost circuit; The main circuit of the welding machine is connected, and the generated high-voltage direct current is connected in parallel with the main circuit; the high-frequency boost circuit generates a high-frequency high-voltage signal, and the high-frequency high-voltage signal is coupled to the secondary negative output of the main circuit of the welding machine through a high-frequency coupler. Such as figure 2 As shown, the main circuit of the welding machine is a full-bridge hard switch, the secondary rectification is a full-wave rectification, the positive pole is added with a reactance output, and the negative pole is connected in series with a high-frequency coupling arc coil output.

[0017] The high-frequency signal source is used as the working power supply of the whole circuit, and is generally taken from the vol...

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Abstract

The invention relates to a high frequency arc ignition circuit with direct current voltage output. The high frequency arc ignition circuit with direct current voltage output comprises a high frequency signal source, a relay, a high frequency voltage booster circuit and a voltage doubling circuit. The high frequency signal source is respectively connected with the input end of the voltage doubling circuit and the input end of the high frequency voltage booster circuit through the relay. The output end of the voltage doubling circuit outputs direct current voltage to secondary positive and negative electrodes of a welding machine main circuit. The high frequency voltage booster circuit produces high frequency high voltage signals and the high frequency high voltage signals are coupled to the secondary negative electrode of the welding machine main circuit and outputted. With the aid of the voltage doubling circuit, the direct current voltage is added to the high frequency arc ignition circuit with direct current voltage output on the condition of high frequency arc starter, air can be punctured more easily at the time of high frequency arc starter, arcing is easier, and success rate of arcing and arcing performance of the welding machine can be improved.

Description

technical field [0001] The invention relates to a high frequency arc starting circuit with DC voltage output. Background technique [0002] The existing high-frequency arc striking circuit used in the welding machine industry has weak arc striking ability. In actual use, it is often difficult to strike the arc for the first time or the arc striking ability is not up to standard due to the cold tungsten needle, which causes users to doubt the performance of the welding machine, and also brings inconvenience to the user in using the welding machine. Contents of the invention [0003] The purpose of the present invention is to provide a high-frequency arc starting circuit with DC voltage output, which can improve the arc starting ability of the welding machine, and aims to solve the technical problem of weak arc starting ability of the existing high frequency arc starting circuit. [0004] The present invention adopts the following technical scheme to achieve the above objec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/067
Inventor 罗国伟
Owner 广东世博科焊接工程技术有限公司
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