High power buffer with increased current stability

Details High power buffer with increased current stability High power buffer with increased current stability

1991-12-20

1993-08-03

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307451, 307263, H03K 1716, H03K 512

Patent

active

052332381

ABSTRACT:
A circuit buffers output in an integrated circuit. The circuit includes a circuit input, a circuit output, a power signal, a ground signal, a first transistor, a second transistor, a third transistor, a fourth transistor, variable resistance means, and control means. The variable resistance means is connected between the source of the first transistor and the drain of the second transistor. The variable resistance provides one of a first impedance and a second impedance between the source of the first transistor and drain of the second transistor in response to a control signal. The control means is connected to the control input means of the variable resistance means. After a voltage level transition on the circuit input and during a resulting voltage level transition on the circuit output, in response to the control means, the variable resistance means first provides the first impedance and then provides the second impedance between the source of the first transistor and drain of the second transistor.

REFERENCES:
patent: 4800298 (1989-01-01), Yu et al.
patent: 4825099 (1989-04-01), Barton
patent: 4825101 (1989-04-01), Walters, Jr.
patent: 4825102 (1989-04-01), Iwasawa et al.
patent: 4827159 (1989-05-01), Naganuma
patent: 4857863 (1989-08-01), Ganger et al.
patent: 5120992 (1992-06-01), Miller
patent: 5121013 (1992-06-01), Chuang et al.
patent: 5138194 (1992-08-01), Yoeli

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