Current control system for electrical discharge machining appara

Details Current control system for electrical discharge machining appara Current control system for electrical discharge machining appara

1977-05-16

1979-04-24

Reynolds, Bruce A.

Electric heating

Metal heating

Cutting or disintegrating

219 69P, 323 80, B23P 108

Patent

active

041513886

ABSTRACT:
A current selection and control system for providing uniform steps of machining current magnitude through a plurality of output modules all coupled to a common gap terminal and having individual amplifier stages. The current magnitude output of the modules is weighted in accordance with a binary code so that selection may be made directly through a binary thumbwheel switch and a gating system to enable selected amplifier stages and their associated modules.

REFERENCES:
patent: 3655936 (1972-04-01), Saito et al.
patent: 3809848 (1974-05-01), Bell
patent: 3896368 (1975-07-01), Rym
patent: 3974357 (1976-08-01), Saito et al.
patent: 3987269 (1976-10-01), Inoue et al.
patent: 3995137 (1976-11-01), Okada et al.
patent: 4029924 (1977-06-01), Brokaw

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