Comparator circuit operable for a wide range of input signal

Details Comparator circuit operable for a wide range of input signal Comparator circuit operable for a wide range of input signal

1988-01-06

1989-06-20

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307497, 307477, 307542, 307544, 307362, 328115, 328146, G06G 712, H03K 500, H03K 522, H03K 5153

Patent

active

048411779

ABSTRACT:
An improved comparator circuit which can operate stably against noise or fluctuation in a power supply is disclosed. The comparator circuit includes a differential amplifier having first and second input terminal, a first diode for biasing the first input terminal at a constant voltage, a second diode coupled between the first and second input terminals, and means for gradually changing the potential at the first input terminal towards the above constant voltage.

REFERENCES:
patent: 3573638 (1971-04-01), Cox, Jr.
patent: 3894288 (1975-07-01), Musser, Jr.
patent: 4020423 (1977-04-01), Guyot et al.
patent: 4549099 (1985-10-01), Yamada et al.
patent: 4652774 (1987-03-01), Hasegawa
patent: 4672238 (1987-06-01), Nemoto

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