Electricity: electrical systems and devices – Safety and protection of systems and devices – Transient responsive
Patent
1985-01-08
1987-02-17
Pellinen, A. D.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Transient responsive
361 91, 307 75, 307 64, H02H 320
Patent
active
046444408
ABSTRACT:
A redundant d.c. power supply arrangement for supplying power to a load circuit, wherein the power supply arrangement is subjected to voltage transients of high frequency and magnitude which emanate from the load circuit. The arrangement includes first and second power supply branches connected in electrical parallel with the load circuit. Each power supply branch includes a d.c. voltage supply and a Zener diode connected in electrical series with the voltage supply. The Zener diodes are selected and arranged for causing at least one of the voltage supplies to deliver power to the load circuit. Each Zener diode has a reverse breakdown voltage for clamping a voltage transient emanating from the load circuit to that Zener breakdown voltage and provides a low impedance path for a resulting current surge associated with the voltage transient.
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MCG Electronics Inc., "Circuit Protectors", 1974, pp. 3-5, 10-11.
Kenny Thomas J.
Sutherland James F.
Abeles Daniel C.
Pellinen A. D.
Westinghouse Electric Corp.
Wysocki A. Jonathan
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