Electronic switching circuits

Details Electronic switching circuits Electronic switching circuits

1993-03-19

1998-07-28

Cain, David C.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Transient responsive

2505051, 376254, H02H 322

Patent

active

057869758

ABSTRACT:
A switching circuit especially suitable for protecting electronic components such as integrated circuits (2) from the harmful effects of ionizing radiation. The circuit comprises two switches for isolating the component (2) from its power supply, the switches conveniently being NPN transistors (TR1, TR2) and being connected either side of a decoupling capacitor (3) associated with a component (2). Because the capacitor (3) is allowed to retain its charge during power-off, no time is lost in recharging it once the power supply has been resumed.

REFERENCES:
patent: 3968421 (1976-07-01), Marcade
patent: 3973224 (1976-08-01), Gaule et al.
patent: 4245270 (1981-01-01), Busby
patent: 4687622 (1987-08-01), Longden
patent: 5287241 (1994-02-01), Puar
patent: 5333094 (1994-07-01), Fucito
Larry Longden & Anthony Trippe, IRT Corp., `Hybrid Detector Protects Circuits From Radiation`, EDN, Aug. 22, 1985, pp. 133-139.

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