Auxiliary open circuit voltage power supply

Details Auxiliary open circuit voltage power supply Auxiliary open circuit voltage power supply

1998-07-09

1999-11-23

Riley, Shawn

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 17, 363 97, 219130, H02M 542, B23K 910

Patent

active

059911808

ABSTRACT:
A method and apparatus for welding power includes an input rectifier, a pre-regulator, a convertor, an auxiliary voltage circuit and a controller. The pre-regulator is connected to receive a rectified voltage and provides a dc bus. The convertor converts the bus to a welding output. The auxiliary voltage circuit is connected across the welding output, in parallel with the converter. The controller shuts the converter down in the event an open circuit condition exists at the output, thus providing a safer open circuit voltage.

REFERENCES:
patent: 4533986 (1985-08-01), Jones
patent: 5601741 (1997-02-01), Thommes
patent: 5811757 (1998-09-01), Higgins
patent: 5815386 (1998-09-01), Gordon
patent: 5824990 (1998-10-01), Geissler et al.

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