Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1978-04-28
1980-01-01
Anagnos, Larry N.
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307221D, 307279, 307360, 307DIG3, 365205, 365208, H03K 520, G11C 706, G11C 1928, H03K 3286
Patent
active
041818652
ABSTRACT:
This multi-level signal charge sensing circuit includes a first capacitor for holding inspected charge, a second capacitor for holding a plurality of reference charge levels and a comparator for comparing potentials produced at the first and second capacitors. As the plurality of reference charge levels, (N-1) charge levels of different known values are prepared. The inspected charge is given to the first capacitor which is reset, and the (N-1) reference charge levels are successively given from the highest or lowest level to the second capacitor which is also reset. The comparator is operated for every step of supplying each reference charge level. Of the successive reference charge supplying steps at an instant between the steps corresponding to 0 and (N-1), the output state of the comparator is inverted, thus supplying digital information representing the inspected charge level. This sensing circuit permits discrimination and sensing or detection of N different inspected charge levels with a single circuit construction.
REFERENCES:
patent: 3760381 (1973-09-01), Yao
patent: 3955101 (1976-05-01), Amelio et al.
patent: 3979603 (1976-09-01), Gosney
patent: 3983413 (1976-09-01), Gunsagar et al.
patent: 3986172 (1976-10-01), Elmer et al.
patent: 4024512 (1977-05-01), Amelio et al.
patent: 4025907 (1977-05-01), Karp et al.
patent: 4085459 (1978-04-01), Hirabayashi
patent: 4136292 (1979-01-01), Suzuki et al.
Aaron, IBM Tech. Discl. Bull., vol. 19, No. 5, pp. 1768-1769, 10/1976.
Bernadotte et al., IBM Tech. Discl. Bull., vol. 18, No. 8, p. 2540, 1/1976.
Anagnos Larry N.
Tokyo Shibaura Electric Co. Ltd.
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