Protective circuitry for electronic device

Details Protective circuitry for electronic device Protective circuitry for electronic device

2011-08-02

2011-08-02

Fureman, Jared J (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

C361S001000, C137S078300, C340S604000, C340S605000, C340S620000

Reexamination Certificate

active

07990670

ABSTRACT:
A protective circuitry (20) is connected between a power input port (11) and an electronic component (12) of an electronic device. The protective circuitry includes a field effect transistor (21) and a detection unit (25). The field effect transistor has a gate and a drain both electrically connected to an anode of the power input port, and a source electrically connected to a cathode of the power input port via the electronic component. The detection unit has two conductive pads spaced to each other. One pad is electrically connected to the gate and the other pad is electrically connected to the cathode of the power input port.

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