Electronic circuit breaker

Details Electronic circuit breaker Electronic circuit breaker

1994-04-22

1996-12-03

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 58, 361 94, 361 87, H02H 300

Patent

active

055814336

ABSTRACT:
A solid state circuit breaker for use in electronic devices which may be connected to an active computer bus. In one embodiment the solid state circuit breaker includes a digital to analog converter by way of which digital control signals are used to set the value at which the circuit breaker determines that a fault condition exists. Fault time is measured from when the fault condition is detected, and when the fault time exceeds a predetermined value, the circuit breaker opens, thereby preventing current flow through the circuit breaker for a second predetermined amount of time. Once this second predetermined amount of time elapses, the circuit breaker again permits current flow, and if a fault condition is determined to continue to exist, the cycle is repeated.
The circuit breaker also includes a current limiting portion which restricts current flow to a maximum permissible value should the current flowing through the circuit breaker attempt to exceed this maximum permissible value. A reverse voltage comparator circuit interrupts current flow through the circuit breaker if the voltage at the output terminal of the circuit breaker exceeds the voltage at the input terminal of the circuit breaker.

REFERENCES:
patent: 4174496 (1979-11-01), McFall et al.
patent: 4331997 (1982-05-01), Engel et al.
patent: 4331998 (1982-05-01), Matsko et al.
patent: 4331999 (1982-05-01), Engel et al.
patent: 4335413 (1982-06-01), Engel et al.
patent: 4335437 (1982-06-01), Wilson et al.
patent: 4338647 (1982-07-01), Wilson et al.
patent: 4351012 (1982-09-01), Elms et al.
patent: 4351013 (1982-09-01), Matsko et al.
patent: 4371824 (1983-02-01), Gritter
patent: 4377836 (1983-03-01), Elms et al.
patent: 4377837 (1983-03-01), Matsko et al.
patent: 4428022 (1984-01-01), Engel et al.
patent: 4445183 (1984-04-01), McCollum et al.
patent: 4476511 (1984-10-01), Saletta et al.
patent: 4539618 (1985-09-01), Stich
patent: 4544981 (1985-10-01), Hakoopian
patent: 4631625 (1986-12-01), Alexander et al.
patent: 4682264 (1987-07-01), Demeyer
patent: 4689712 (1987-08-01), Demeyer
patent: 4694373 (1987-09-01), Demeyer
patent: 4710845 (1987-12-01), Demeyer
patent: 4717985 (1988-01-01), Demeyer
patent: 4740883 (1988-04-01), McCollum
patent: 4751605 (1988-06-01), Mertz et al.
patent: 4766416 (1988-08-01), Noujaim
patent: 4780786 (1988-10-01), Weynachter et al.
patent: 4780787 (1988-10-01), Dano et al.
patent: 4878144 (1989-10-01), Nebon
patent: 4996646 (1991-02-01), Farrington
patent: 5119265 (1992-06-01), Qualich et al.
patent: 5166887 (1992-11-01), Farrington et al.
patent: 5170360 (1992-12-01), Porter et al.
patent: 5185705 (1993-02-01), Farrington
patent: 5270898 (1993-12-01), Elms et al.

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