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专利名称：A welding, plasma or heating power source发明人：Geissler, Steven J.申请号：EP01302319.7申请日：20010314公开号：EP1138429A2公开日：20011004
专利附图：
摘要：A method and apparatus for providing welding type power is disclosed. Thepower source is capable of receiving any input voltage (109) over a wide range of inputvoltages and includes an input rectifier (101) that rectifies the ac input into a dc signal. Adc voltage stage (102) converts the dc signal to a desired dc voltage and an inverter
inverts the dc signal into a second ac signal. An output transformer (103) receives thesecond ac signal and provides a third ac signal that has a current magnitude suitable forwelding, cutting or induction heating. The welding type current may be rectified andsmoothed by an output inductor and an output rectifier. A controller (104) providescontrol signals to the inverter and a controller power supply (105) can also receive arange of input voltages and provide a control power signal to the controller (104), and avoltage independent of the input voltage.
申请人：ILLINOIS TOOL WORKS INC.
地址：3600 West Lake Avenue Glenview, Cook County, Illinois 60025 US
国籍：US
代理机构：Rackham, Stephen Neil
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