Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Nonlinear amplifying circuit
Patent
1995-06-07
1996-06-25
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Nonlinear amplifying circuit
327 72, 327 65, 327206, H03K 5153, H03K 524
Patent
active
055304010
ABSTRACT:
A circuit for supplying a reference voltage from a single data input voltage source is provided which utilizes a delay circuit in conjunction with a source follower circuit to provide a separate reference voltage to a differential circuit. The data input signal is provided concurrently to the source follower circuit and the delay. The source follower circuit includes an "N" type transistor which has its source connected to the source of a "P" type transistor. The delay circuit is provided to delay, or "hold off" the data input signal until the signal is through the source follower and ready for input to the differential circuit. By using the delay, the data input signal and the reference signal (output from the source follower) are input to the differential circuit simultaneously. The threshold voltage drop across the gate and source of the transistors in the source follower circuit provide the reference voltage, which follows the data input voltage. In this manner, hysterisis induced by the source follower circuit provides a reference voltage which can be used by a differential circuit, or the like and eliminate the need for two separate and distinct power supplies.
REFERENCES:
patent: 3873856 (1975-03-01), Gerlach et al.
patent: 3882331 (1975-05-01), Sasaki
patent: 4063119 (1977-12-01), Odell et al.
patent: 4506168 (1985-03-01), Uya
patent: 4507795 (1985-03-01), Wagner
patent: 4677315 (1987-06-01), Blauschild et al.
patent: 4677388 (1987-06-01), Morrison
patent: 4687954 (1987-08-01), Yasuda et al.
patent: 4733107 (1988-03-01), O'Shaughnessy et al.
patent: 4749954 (1988-06-01), Hayano
patent: 4885479 (1989-12-01), Oritani
patent: 5017805 (1991-05-01), Kase
patent: 5034623 (1991-07-01), McAdams
patent: 5182480 (1993-01-01), Goto
patent: 5274273 (1993-12-01), Baginski et al.
patent: 5302871 (1994-04-01), Matsuzaki et al.
McGraw-Hill Book Company, D. L. Schilling et al, Electronic Circuits Discrete and Integrated, Second Edition, "Multiple-Transistor Circuits", Chapter Seven, pp. 304-324.
Cao Tai A.
Dutta Satyajit
Callahan Timothy P.
International Business Machines - Corporation
McBurney Mark E.
Shin Eunja
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