Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1980-05-22
1982-03-09
Miller, Jr., Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307127, 307262, 307311, 363127, 250211J, H03K 522, H03K 342
Patent
active
043191444
ABSTRACT:
A circuit with low impedance for maintaining a single polarity at an output is disclosed. Switching is provided by light controlled switching devices which in one embodiment are field effect transistors (14, 15, 16, 17) which are optically triggered by one or more photo-responsive devices (26', 27', 28', 29') coupled to their gate electrodes. The ON-OFF state of each switch is determined by the presence or absence of light from an adjacent line-powered LED (26, 27, 28, 29). A diode (32, 33, 34, 35) may be included in parallel with each switching device to provide surge protection.
REFERENCES:
patent: 3626201 (1970-12-01), Chambers, Jr.
patent: 3819951 (1974-06-01), Moore
patent: 3823271 (1974-07-01), Carbrey
patent: 3849607 (1974-11-01), Carbrey
patent: 3860868 (1975-01-01), Lindell et al.
patent: 4086624 (1978-04-01), Fraley
King William C.
Lynes Dennis J.
Riehm, Jr. Charles E.
Waaben Sigurd G.
Bell Telephone Laboratories Incorporated
Birnbaum Lester H.
Davis B. P.
Miller, Jr. Stanley D.
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