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Welder control circuit

A technology for controlling circuits and welding machines, used in welding equipment, manufacturing tools, welding equipment, etc., and can solve the problems of welding machine power limitation, operation errors, and high cost

Active Publication Date: 2020-08-04
SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in design 1, it is necessary to add an additional set of components of the inverter circuit and pay a high cost; in design 2, through manual switching, it is easy to cause human error; in design 3, the power that the welding machine can withstand is greatly affected. limited and costly

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] Before describing in detail embodiments in accordance with the present invention, it should be noted that the embodiments reside primarily in the combination of system components related to the welder control circuitry. Accordingly, pertinent system components have been indicated at appropriate locations in the drawings by conventional symbols, and only details relevant to an understanding of the embodiments of the invention are shown so as not to obscure the knowledge of ordinary skill in the art having the benefit of this invention. Those details that are obvious to the human eye can obscu...

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Abstract

The invention relates to a welding machine control circuit. The welding machine control circuit comprises a voltage input module, a rectifier module, an energy storage module, an inversion module, a PWM energy storage control module and a PWM driving control module. The PWM energy storage control module controls the energy storage module to store energy according to output of the energy storage module. The PWM driving control module transmits input voltage of a welding machine to the PWM energy storage control module and stabilizes output power of the inversion module according to input voltage of the welding machine, current of the energy storage module and an output current source and output voltage of the welding machine. According to the welding machine control circuit, the PWM energystorage control module controls the energy storage module to supply enough energy to the inversion module; the PWM driving control module synthesizes the input voltage of the welding machine, the current of the energy storage module and the output current and the output voltage of the welding machine to control the output power of the inversion module. Accordingly, the stability of the output power of the welding machine is guaranteed under the condition of changing the input voltage of the welding machine. The welding machine control circuit has good wide voltage adaptive ability.

Description

technical field [0001] The invention relates to the technical field of electric welding machines, in particular to a welding machine control circuit. Background technique [0002] With the increasingly wide range of applications of inverter power welding machines, and the current differences in power grids around the world, the distinction between civil, light industry, and industrial applications has become increasingly blurred. Various voltage inputs (single-phase 110V, 220V, 380V, three-phase Phases 220V, 380V, 440V, generators, etc.) are becoming more and more complex, so higher requirements are put forward for the adaptability of the input voltage of the inverter welding machine. [0003] At present, there are mainly the following ways to adapt to the welding machine design in different complex voltage environments: design 1, through the series and parallel transformation of two inverter full bridges to broaden the applicable working voltage range; design 2, using manua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/217B23K9/095B23K37/00
Inventor 不公告发明人
Owner SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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