Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1977-08-04
1979-01-02
Anagnos, Larry N.
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
315399, 307239, 328151, 328165, 328231, 340347SH, 364855, H03K 1716, G06F 314, H01J 2970
Patent
active
041329082
ABSTRACT:
A deglitch circuit is provided to connect a source of changing voltage or current to a utilization device to eliminate unwanted voltage excursion contemporaneous with changes in amplitude. The deglitching circuit includes one transformer winding with a center tap connected to the source and a pair of serially connected diodes connected to terminals of the winding. Another winding of the transformer is connected to a source of potential through switches which allow the other winding to alternately conduct current in one or another sense. Changes in the sense of current conduction through the other winding induce a voltage into the one transformer winding. Depending on the change in current this voltage may forward bias the diodes and provide the effect of a closed switch between the source and the circuit output, which is taken at the junction of the diodes. With change of current in the other sense, a voltage is induced into the one winding to reverse bias the diodes and thus providing, in effect, an open switch between the voltage source and circuit output.
REFERENCES:
patent: 2510027 (1950-05-01), Torsch
patent: 2680806 (1954-06-01), Beste
patent: 2837692 (1958-06-01), Denton
patent: 2874284 (1959-02-01), Conger
patent: 3500212 (1970-03-01), Berg
patent: 3710141 (1973-01-01), Zeiger
patent: 3851260 (1974-11-01), Colin
patent: 3869085 (1975-03-01), Green
patent: 3906305 (1975-09-01), Nillesen
patent: 3917963 (1975-11-01), Wadlington
patent: 3976991 (1976-08-01), Hickin et al.
Hansen, "Burst Mode Sampling Amplifier," IBM Tech. Discl. Bull.; vol. 14, No. 7, pp. 2196-2197; 12/1971.
Anagnos Larry N.
Smiths Industries, Inc.
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