Direct current pulse welder
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United States of America Patent
Stats
-
Jan 14, 1986
Grant Date -
N/A
app pub date -
Mar 30, 1984
filing date -
Mar 30, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A direct current pulse welder including circuitry for controlling the amount of electric energy delivered to the weld site. By means of feedback techniques the output impedance of the welder is adjusted and changed by utilizing a voltage feedback signal and a current feedback signal to match the impedance of the weld site. Matching the impedance of the welder to the impedance of the weld site enables the welder to deliver the correct amount of power desired to each weld regardless of variations in actual impedance of the weld sites that occur in actual production situations.
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