A NOVEL WELDING POWER SUPPLY

Abstract

Abstract: A DC supply by using IGBT to realize rectification and PWM without any transformer can improve power efficiency with less transformation. Meanwhile it absorbs current only when each phase voltages and line voltages is low, so it will not pollute the electric net while general supply absorbs current in a short time at high voltage. It is a prospective large current low voltage DC supply because of its features as small volume, low weight, high efficiency, stable work and no noise etc.

Key words: DC, IGBT, power supply, PWM, Bearing fault diagnosis, Fault characteristic trend template, Gear noise, IDMM, IFCF, Variable rotational speed

CLC Number:

Song Yuanhe;Li Genqian;Zhao Hong;Tan Yushan;Dong Daqun. A NOVEL WELDING POWER SUPPLY[J]. , 1999, 35(2): 46-48.

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A NOVEL WELDING POWER SUPPLY

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