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An arc welding power supply system, control method and power supply module

A technology of arc welding power source and control circuit, which is applied in the direction of control/regulation system, electrical components, adjusting electrical variables, etc., can solve the problems of low conversion efficiency of arc welding power source, etc.

Active Publication Date: 2016-06-22
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the defects of the prior art, the object of the present invention is to provide an arc welding power supply system, aiming to solve the technical problem of low conversion efficiency of the existing arc welding power supply

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  • An arc welding power supply system, control method and power supply module
  • An arc welding power supply system, control method and power supply module
  • An arc welding power supply system, control method and power supply module

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention more clear, 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.

[0031] The invention can solve the problems of low efficiency, large volume, heavy weight and high cost of the existing arc welding power supply, the highest efficiency reaches 94%, has high open-circuit voltage and stable and adjustable output current, and is suitable for low-power arc welding power supply application field.

[0032] figure 1 The module structure of the arc welding power supply system provided by the embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are ...

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Abstract

The invention provides an arc welding power system, a control method and a power module. The arc welding power system comprises an input power supply, a power converting circuit, a resonance circuit, a rectifying circuit, a filtering circuit and a control circuit, wherein the input end of the power conversion circuit is connected with the input power supply, the feedback control end of the power conversion circuit is connected with the output end of the control circuit, the input end of the resonance circuit is connected to the output end of the power conversion circuit, the input end of the rectifying circuit is connected to the output end of the resonance circuit, the rectifying circuit is used for converting high-frequency resonance current into direct current, the input end of the filtering circuit is connected to the output end of the rectifying circuit, the first input end of the control circuit is connected to the feedback end of the filtering circuit, and the second input end of the control circuit is connected to the connection end between the power conversion circuit and the resonance circuit. According to the arc welding power system, power redundancy is reduced through current boosting characteristic of an inductor, and compared with a traditional arc welding power supply, the efficiency is greatly improved, and the highest efficiency can be 94 percent.

Description

technical field [0001] The invention belongs to the technical field of arc welding power supply, and more specifically relates to an arc welding power supply system, a control method and a power supply module. Background technique [0002] Arc welding power supply is the main component of welding equipment, which is of great significance to the development of arc welding equipment industry and is closely related to the development of national industry. The arc welding power supply is a special power supply with low-voltage and high-current output, which requires higher dynamic response characteristics and reliability than ordinary power supplies. The key issue lies in the circuit topology and control technology of the arc welding power supply to achieve the requirements of high performance, high efficiency and high power density. Compared with the traditional arc welding power supply, the inverter arc welding power supply has significant advantages in volume, weight, effici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/335
Inventor 段善旭方支剑蔡涛丰昊
Owner HUAZHONG UNIV OF SCI & TECH
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