Fault detection circuit

Details Fault detection circuit Fault detection circuit

1990-10-01

1994-03-01

Wambach, Margaret R.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307455, 307456, 307473, 307354, 307362, H03K 1902, H03K 5153

Patent

active

052910750

ABSTRACT:
A circuit for detecting when a fault condition has occurred includes an input stage responsive to a logic signal supplied to an input of the circuit for providing an output logic signal at an output thereof. An output stage, including a pulldown circuit, responsive to the output logic signal of the input stage, for providing an output logic signal at an output of the circuit. A fault detection circuit coupled to the output of the input stage and to the output stage for forcing the output of the circuit to a predetermined logic state when the pulldown circuit of the output stage is defective.

REFERENCES:
patent: 3579272 (1971-05-01), Foss
patent: 3906212 (1975-09-01), Poguntke
patent: 4286179 (1981-08-01), Konian
patent: 4745304 (1988-05-01), Wilson
patent: 4871929 (1989-10-01), Hollstein et al.
patent: 4980579 (1990-12-01), McDonald et al.
IBM Tech. Disc. Bul. vol. 27 No. 10A Mar. 1985 "Low Voltage Inverter Logic Tri-State Operation".

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