Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1988-07-05
1989-07-04
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
328146, 328149, 328140, 307362, 307354, 307518, 307519, 307494, H03K 519, H03K 906
Patent
active
048453790
ABSTRACT:
A low-cost circuit capable of detecting the absence of a pulse train such as the pulse train generated by a fan cooling output circuit of open collector design. The detection circuit is capable of sensing that a pulse output has stopped in either a high or low state by converting the pulse train to a level that can be compared to a reference. The circuit design insures that the steady state voltage level decays to an under voltage value when the pulse train stops regardless of whether the fan output stops in a high or low state.
REFERENCES:
patent: 2847565 (1958-08-01), Clapper
patent: 3068367 (1962-12-01), Brown et al.
patent: 3069558 (1962-12-01), Burt et al.
patent: 3149243 (1964-09-01), Garfield
patent: 3187202 (1965-06-01), Case
patent: 3258669 (1966-06-01), Krassoievitch
patent: 3264496 (1966-08-01), Scholl
patent: 3305732 (1967-02-01), Grossman et al.
patent: 3403269 (1968-09-01), Thompson
patent: 3405234 (1968-10-01), West
patent: 3497816 (1970-02-01), Fritz et al.
patent: 3506848 (1970-04-01), Beurrier
patent: 3514685 (1970-05-01), Burgess
patent: 3522544 (1970-08-01), Saldutti et al.
patent: 3653018 (1972-03-01), Budrys
patent: 3790818 (1974-02-01), Bruckner
patent: 3940698 (1976-02-01), Itoh
patent: 4158148 (1979-06-01), Teller
patent: 4262213 (1981-04-01), Eichelberger et al.
patent: 4322642 (1982-03-01), Sugasawa
patent: 4746820 (1988-05-01), Fey
Markus, John: "Modern Electronic Circuits Reference Manual", McGraw-Hill 1980, p. 764.
"Signetics Analog Data Manual", Signetics, Sunnyvale, CA, 1977, p. 723.
International Business Machines - Corporation
Miller Stanley D.
Schecter Manny W.
Thai Nancy
LandOfFree
Sense circuit for detecting absence of a pulse train does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sense circuit for detecting absence of a pulse train, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sense circuit for detecting absence of a pulse train will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-854819