Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means
Reexamination Certificate
2007-11-20
2009-08-11
Nguyen, Danny (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Load shunting by fault responsive means
C361S111000
Reexamination Certificate
active
07573687
ABSTRACT:
A power semiconductor device includes a power semiconductor element, a protection circuit, an inspection terminal, and an electrical conductor. The protection circuit includes multiple zener diodes connected in series between a gate and an emitter of the power semiconductor element. The protection circuit limits a voltage between the gate and emitter of the power semiconductor element, when an abnormal voltage is applied to the gate. The electrical conductor electrically connects the inspection terminal to a node between the zener diodes of the protection circuit. The zener diodes are separately inspected by using the inspection terminal.
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DENSO CORPORATION
Nguyen Danny
Posz Law Group , PLC
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