Overvoltage protection device and method for increasing shunt cu

Details Overvoltage protection device and method for increasing shunt cu Overvoltage protection device and method for increasing shunt cu

1997-10-03

2000-05-09

Jackson, Stephen W.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 58, 361111, 361118, H02H 900

Patent

active

060612185

ABSTRACT:
An overvoltage protection device (40) and a method for increasing the overvoltage current the device can carry. The overvoltage protection device (40) includes a Silicon Controlled Rectifier (SCR) (11) and an SCR enhance circuit (42). The SCR enhance circuit (42) provides the SCR (11) with an additional low resistance path to increase the amount of overvoltage shunt current the SCR (11) carries during an overvoltage event.

REFERENCES:
patent: 5010380 (1991-04-01), Avery
patent: 5155398 (1992-10-01), Mikuni et al.
patent: 5506742 (1996-04-01), Marum
patent: 5576557 (1996-11-01), Ker et al.
patent: 5600525 (1997-02-01), Avery
patent: 5615074 (1997-03-01), Avery

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