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Ground-Sensing Circuit For Arc WeldersGround-sensing circuit for arc-welding power supply prevents arc burns at loose ground connections on workpiece. Used with ac supply or dc supply of either polarity. Includes oscillator/detector pairs normally shorted out by ground connections to workpiece. When one or more of these four connections broken, one or more oscillator signals applied across power diodes and detected. Detected oscillator signal trips shutoff relay.
Document ID
19890000594
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Burley, Richard K.
(Rockwell International Corp.)
Date Acquired
August 14, 2013
Publication Date
December 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 12
ISSN: 0145-319X
Subject Category
Electronic Components And Circuits
Report/Patent Number
MFS-29455
Accession Number
89B10594
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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