Surge protected power supply

Details Surge protected power supply Surge protected power supply

2011-01-11

2011-01-11

Fureman, Jared J (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

C361S018000, C361S111000

Reexamination Certificate

active

07869176

ABSTRACT:
An overvoltage protection circuit for protecting a pass element in a controlled voltage supply circuit electrically connected between a circuit power supply interconnection terminal region suited for electrical connection to a circuit power supply and an output terminal, the pass element being protected from voltage surges that may occur on the circuit power supply interconnection with respect to a voltage reference interconnection. A voltage reference is provided electrically connected in series with a voltage. The voltage divider and the voltage reference are connected in series with one another between the circuit power supply interconnection and the voltage reference interconnection. A threshold switch is electrically connected to a corresponding one of the voltage divider output and one of the voltage divider terminating regions terminating regions, and has an output coupled to the pass element control region.

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