Method and apparatus of electronic selection of an output...

Details Method and apparatus of electronic selection of an output... Method and apparatus of electronic selection of an output...

2006-10-03

2006-10-03

Shaw, Clifford C. (Department: 1725)

Electric heating

Metal heating

By arc

Reexamination Certificate

active

07115834

ABSTRACT:
The present invention provides a method and apparatus of electronically selecting an output mode of a welding power source. The invention includes operational circuitry that electronically energizes an output terminal based on a user selected parameter. Specifically, a series of power switches is selectively biased based on a particular output mode selection by the user. As such, independent output terminals of the power source may be activated without requiring mechanical and manual operation by the user.

REFERENCES:
patent: 2597689 (1952-05-01), Welch, Jr.
patent: 3130295 (1964-04-01), Manz
patent: 3544759 (1970-12-01), Manz
patent: 4517439 (1985-05-01), Colley
patent: 4918285 (1990-04-01), Thommes
patent: 6028290 (2000-02-01), Yasuhara et al.
patent: 6037566 (2000-03-01), Yasuhara et al.
Gutzwiller, ed., SCR Manual, 4th edition, 1967, General Electric, pp. 143-144.

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