发明名称 |
Method and apparatus for receiving a universal input voltage in a welding power source |
摘要 |
A method and apparatus for providing a welding current is disclosed. The power source is capable of receiving any input voltage over a wide range of input voltages and includes an input rectifier that rectifies the ac input into a dc signal. A dc voltage stage converts the dc signal to a desired dc voltage and an inverter inverts the dc signal into a second ac signal. An output transformer receives the second ac signal and provides a third ac signal that has a current magnitude suitable for welding. The welding current may be rectified and smoothed by an output inductor and an output rectifier. A controller provides control signals to the inverter and an auxiliary power controller that can receive a range of input voltage and provide a control power signal to the controller.
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申请公布号 |
US6239407(B1) |
申请公布日期 |
2001.05.29 |
申请号 |
US19980200058 |
申请日期 |
1998.11.25 |
申请人 |
ILLINOIS TOOL WORKS INC. |
发明人 |
THOMMES JAMES M. |
分类号 |
B23K9/073;B23K9/095;H02M5/458;H02M9/00;(IPC1-7):B23K9/10 |
主分类号 |
B23K9/073 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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