Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor
Reexamination Certificate
2011-01-18
2011-01-18
Nguyen, Danny (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific current responsive fault sensor
C361S018000
Reexamination Certificate
active
07872842
ABSTRACT:
An overcurrent protection device for a power supply device includes a receiving end for receiving a current sensing signal, a compensating current unit coupled to the receiving end for compensating the current sensing signal in order to generate a current sense compensation signal, a first reference voltage generator for generating a first reference voltage, a comparator coupled between the compensating current unit and the first reference voltage generator for comparing the current sense compensation signal with the first reference voltage in order to generate a comparison result, a control unit coupled to the comparator for controlling a power switch of the power supply device according to the comparison result.
REFERENCES:
patent: 7643313 (2010-01-01), Lin
patent: 2004/0021992 (2004-02-01), Takamatsu
patent: 2005/0135036 (2005-06-01), Kanamori et al.
patent: 1630175 (2005-06-01), None
Hung Chia-Chieh
Lin Chin-Yen
Wang Yen-Hui
Wu Chi-Hao
Grenergy Opto, Inc.
Hsu Winston
Margo Scott
Nguyen Danny
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