G - Physics – 01 – R
Patent
G - Physics
01
R
328/173, 328/5
G01R 19/165 (2006.01) H03K 5/08 (2006.01)
Patent
CA 1077578
(Case No, 6825) FAIL-SAFE ELECTRONIC POLARIZED RELAY ABSTRACT OF THE DISCLOSURE A fail-safe symmetrical solid-state polarized relay circuit having a positive and a negative level detector coupled to a source of periodic input signals. A pair of amplifiers for amplifying the a.c. oscillations produced by the level detectors. A plurality of rectifiers for rectifying the a.c. oscillations and for alternately producing a d.c. output voltage on a pair of output terminals in accordance with the positive and negative excursions of the periodic input signals.
282271
Darrow John O. G.
Na
Westinghouse Air Brake Company
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