Wide-input voltage range arc power-supply device

A technology of voltage range, power supply equipment, applied in the field of arc power supply equipment

Inactive Publication Date: 2012-09-19
SHENZHEN HUAYILONG ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this known method and circuit topology are applicable to commercial power supply voltage ranges in countries all over the world, they can only be applied to single-phase power supply.

Method used

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Embodiment Construction

[0033] 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, and are not intended to limit the present invention.

[0034] see Figure 3-5 , the present invention divides the voltages of commercial AC power supplies in various countries in the world into three groups, low-voltage groups: 110V, 115V, 200V, 208V, 220V, 230V and 240V; medium-voltage groups: 380V, 400V, 410V, 440V, 460V; Group: 575V.

[0035] See image 3 , for the low-voltage group voltage, the circuit adopts a single / three-phase bridge rectification cascaded parallel BOOST chopper boost circuit (that is, a parallel boost chopper circuit) and a single-group inverter topology; for the medium-voltage group voltage, The ci...

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PUM

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Abstract

The invention relates to a wide-input voltage range arc power-supply device. A wide-range commercial power voltage is divided into a low-voltage module voltage, a medium-voltage module voltage and a high-voltage module voltage after rectified, filtered and stabilized, the low-voltage module voltage is boosted and the high-voltage module voltage is bucked as well as the medium-voltage module voltage is directly connected by a booster chopper circuit and a cascade voltage-reducing chopper, and then the low-voltage module voltage, the medium-voltage module voltage and the high-voltage module voltage are inverted by one group of inverters for obtaining the single voltage value with the required frequency so as to be used by an inversion type electric welder, and the single voltage value can be connected with the single-phase/three-phase power supply voltage, thus the flexibility is stronger.

Description

technical field [0001] The invention relates to the field of arc power supplies, in particular to arc power supply equipment applicable to a wide voltage range. Background technique [0002] At present, the voltage range of commercial AC power supply in various countries in the world is 110V to 575V, and the specific data are: 110V, 115V, 200V, 208V, 220V, 230V, 240V, 380V, 400V, 410V, 440V, 460V, 575V. As an arc power supply device that obtains electric energy by connecting to a commercial AC power supply, to adapt to such a wide voltage range, a suitable circuit topology is required to complete it. There are currently two known methods and circuit topologies: [0003] The first known method and circuit topology (see figure 1 ) is: the voltage of the commercial AC power supply in all countries in the world is divided into three groups, low-voltage group: 200V, 208V, 220V, 230V and 240V; Voltages of commercial AC power sources: 110V and 115V were not included. [0004] F...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/458
Inventor 吴月涛杨振文
Owner SHENZHEN HUAYILONG ELECTRIC
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