Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means
Reexamination Certificate
2007-10-09
2007-10-09
Leja, Ronald W. (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Load shunting by fault responsive means
Reexamination Certificate
active
10936308
ABSTRACT:
An electrostatic discharge (ESD) device for protecting a power amplifier circuit is disclosed. The ESD device comprises a first ESD protection circuit coupled between a positive terminal of a supply voltage and a negative terminal of the supply voltage, and a second ESD protection circuit coupled between the negative terminal of the supply voltage and an output terminal of the power amplifier circuit, wherein a first current path is formed from the positive terminal to the output terminal through the first and second ESD protection circuits. A circuit device operative to increase impedance of a second current path from the positive terminal to the output terminal through the power amplifier circuit to divert current from the second current path to the first current path in the course of an ESD event.
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Duvvury Charvaka
Hung Chih-Ming
Oguzman Ismail H.
Brady W. James
Leja Ronald W.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
Wu Dolly Y.
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