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    • 22. 发明授权
    • Method and apparatus for providing welding/plasma power
    • 提供焊接/等离子体电源的方法和装置
    • US06236014B1
    • 2001-05-22
    • US09466955
    • 1999-12-20
    • James F. Ulrich
    • James F. Ulrich
    • B23K1000
    • H05H1/36B23K10/006
    • A method and apparatus for providing welding/plasma power is disclosed. The welding/plasma power source includes an input stage, an output stage, and an energy storage device such as a capacitor. The input stage is configured to receive an ac input signal and to rectify the ac input signal to provide a rectified intermediate signal. The input stage is further configured to provide a dc voltage signal across a dc bus. The output stage is disposed to receive the dc voltage signal and is configured to provide an available output power signal suitable for welding, plasma cutting and induction heating applications. The energy storage device is connected to provide sufficient stored energy to the dc bus to allow the welding/plasma power source to run off of a generator.
    • 公开了一种用于提供焊接/等离子体电力的方法和装置。 焊接/等离子体电源包括输入级,输出级和诸如电容器的能量存储装置。 输入级被配置为接收交流输入信号并整流交流输入信号以提供整流的中间信号。 输入级还被配置为提供跨直流母线的直流电压信号。 输出级被设置为接收直流电压信号并且被配置为提供适合于焊接,等离子切割和感应加热应用的可用输出功率信号。 能量存储装置被连接以向dc总线提供足够的存储能量以允许焊接/等离子体电源从发电机运行。