Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1979-06-28
1982-10-19
Chatmon, Jr., Saxfield
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307221D, 3072388, 307224C, 307225C, H03K 3353
Patent
active
043552447
ABSTRACT:
A device for reading a quantity of electric charges arriving at a point B. Two MOS transistors Q2 and Q3 are connected in series and with one terminal to point B. A capacitor C.sub.A is connected to a common point A of the two transistors. A transistor control circuit charges the capacitor C.sub.A from a low potential V.sub.DD. The capacitor C.sub.A and the transistors Q2 and Q3 maintain a constant potential at the point B at the time of charge inflow. This results is a variation of potential at the common point A in accordance with the incoming charges at B. Thus, the variations of potential at point A is a measure of the charges arriving at point B.
REFERENCES:
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patent: 3648063 (1972-03-01), Hoffman et al.
patent: 3868516 (1975-02-01), Buss
patent: 3877056 (1975-04-01), Bailey
patent: 3889245 (1975-06-01), Gosney, Jr.
patent: 3947705 (1976-03-01), Emmons
patent: 3949245 (1976-04-01), Emmons
patent: 3997973 (1976-12-01), Buss
patent: 4080581 (1978-03-01), Sakaue et al.
Benoit-Gonin Roger
Berger Jean-Luc
Coutures Jean-Louis
"Thomson-CSF"
Chatmon, Jr. Saxfield
Plottel Roland
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