A type bus bar stacking method for large power pulse switch power supply

A pulse switch, high-power technology, applied in the direction of output power conversion devices, electrical components, etc., can solve the problems of increasing the capacitance of the wire, reducing the inductance of the wire, etc., to reduce the volume, reduce the loop area, reduce the The effect of small electromagnetic interference

Inactive Publication Date: 2009-07-08
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The inductance of the wire can be reduced by replacing the circular cross-section wire with a rectangular cross-section wire, or by making the two wires as close as possible to each other, both of which will also increase the capacitance of the wire

Method used

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  • A type bus bar stacking method for large power pulse switch power supply
  • A type bus bar stacking method for large power pulse switch power supply
  • A type bus bar stacking method for large power pulse switch power supply

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Embodiment Construction

[0054] In conjunction with the accompanying drawings, the present invention further explains the technical solution:

[0055] High-power pulse switching power supply A-type busbar stacking method, the main circuit of the power supply uses 4 rectifier bridge modules, and 2 IGBT module outputs, the model is: FF800R12KF4 (see figure 1 ), the shape and pin definitions are as follows figure 2 , image 3 shown. Install 4 rectifier bridge modules and 2 IGBT modules on the same water-cooled board, connect the 4 rectifier bridge modules in parallel, and connect their AC input and output positive poles with copper plates, and cool them through the circulating water device; rectifier bridge modules and IGBT modules with water cooled plate mounted as Figure 4 shown. Install the capacitors on the negative copper plate and the positive copper plate respectively, and fix the capacitors on the positive and negative plates with screws; then stack the negative electrode of the capacitor p...

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Abstract

The invention discloses a method for laminating A-type busbars of a high-power pulse switch power supply. The method is structurally characterized in that four rectifier bridge modules are selected to be connected in parallel and rectified, and two IGBT (insulated gate bipolar translator) modules are selected to output a main circuit; a filter capacitor, a power switching tube or a rectifier, and an inductor or a transformer in the main circuit are placed close to each other; the directions of the components are determined, that is, in design of the high power pulse switch power supply, a capacitor plate, A, B, C, anode phase input copperplate are installed by copperplate lamination, therefore, the wiring is reduced, the influence of the lead inductance and resistance is eliminated, electromagnetic interference is further reduced and the purpose to inhibit electromagnetic interference is achieved.

Description

technical field [0001] The invention relates to a method in which devices are stacked and connected in the design of a high-power pulse switching power supply. Background technique [0002] There are hundreds of high-power switching power supplies (about 80KVA) for the cooling storage ring of the Lanzhou Heavy Ion Accelerator to power the magnets. Under the same power capacity, the switching power supply is more efficient than the linear power supply, the volume is smaller, and the electromagnetic interference is more serious. Controlling the generation and radiation of high-frequency noise is the most complex "black box" art in the design of switching power supply production systems. [0003] As we all know, in switching power supplies, some signals contain rich high-frequency components, so any lead wire may become an antenna, and the length and width of the lead wire affect its resistance and inductance, which in turn affects their frequency response, even if it is trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H02M1/44
Inventor 张曙高大庆陈又新张显来冯秀明
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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