Discharge-processing electric power-source assembly

Details Discharge-processing electric power-source assembly Discharge-processing electric power-source assembly

1993-01-26

1994-05-31

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

B23H 102

Patent

active

053171225

ABSTRACT:
A discharge-processing power-source assembly, in which a processing liquid is interposed at a minute gap defined between a workpiece and an electrode, and processing is executed by discharge energy, comprises a D.C. power source supplying electric energy to the minute gap, switching elements for converting D.C. voltage from the D.C. power source to pulse voltage, and a snubber circuit for protecting the switching elements. The discharge-processing power-source assembly further comprises a relay contact for cutting off the snubber circuit when a switching frequency is high.

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