Method and apparatus for welding with high frequency protection

Details Method and apparatus for welding with high frequency protection Method and apparatus for welding with high frequency protection

2006-07-18

2006-07-18

Shaw, Clifford C. (Department: 1725)

Electric heating

Metal heating

By arc

Reexamination Certificate

active

07078652

ABSTRACT:
A method and apparatus for providing welding-type power is disclosed. The power supply has two output lines, and two inductances that are magnetically coupled, or a common mode inductance, in the output lines. The inductances may be installed when the power supply is built, or added afterwards. The inductance may protect the welding-type power supply from high frequency noise on a workpiece.

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patent: 6329636 (2001-12-01), Geissler
Schindler, “Proper layout and component selection control power-supply EMI”, Oct. 2000, EDN magazine, pp. 137-153.

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