An electronic load and working process of a wire electric discharge cutting pulse power supply

Abstract

The invention discloses a wire cut electrical discharge machining pulse power supply electronic load. The electronic load comprises a diode bidirectional array, a detecting circuit, a control circuit,a protection circuit, a man-machine interaction module and a driving circuit, wherein the diode bidirectional array comprises a first diode series branch, a second diode series branch, a third diodeseries branch and a fourth diode series branch. The first diode series branch and the second diode series branch are reversely connected in parallel to form a first parallel branch, and the third diode series branch and the fourth diode series branch are reversely connected in parallel to form a second parallel branch. One connection point of the first parallel branch is connected with one connection point of the second parallel branch through two MOSFET switch tubes Q1 and Q2 connected in series or an IGBT, and the first parallel branch and the other connection point of the first parallel branch constitute the A end and the B end of the electronic load respectively connected with the positive side and the negative side of a wire cut electrical discharge machining pulse power supply. The electronic load can be used for simulating gap load characteristics of the wire cut electrical discharge machining pulse power supply in the industry in a laboratory.

Description

technical field [0001] The invention relates to a high-frequency pulse power supply, in particular to an electronic load and working process of a wire electric discharge cutting pulse power supply. Background technique [0002] Modern industrial processing is developing toward high efficiency, high speed, high precision, intelligence, and greenness. The existing traditional mechanical processing has been difficult to meet the development requirements of modern industry. With the development of power electronics technology and its semiconductor devices, the pulse power supply for wire cutting electric discharge has been greatly developed. With its high efficiency, high precision, intelligent controllable and other excellent characteristics, it has a great reputation in the field of industrial wire cutting processing. Inestimable application potential and applicability. [0003] Compared with the traditional load, the load processed by the pulse power supply of wire electric ...

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Problems solved by technology

[0003] Compared with the traditional load, the load processed by the pulse power supply of wire electric discharge cutting has unique load characteristics. In many cases, the conditions for processing in the factory are not available in the laboratory, and there is a lack of loads with this pulse power supply.

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