Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means
Reexamination Certificate
2011-08-16
2011-08-16
Fureman, Jared J (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific quantity comparison means
C363S050000
Reexamination Certificate
active
08000071
ABSTRACT:
An apparatus and method for reducing the die area of a PWM controller include a protection circuit triggered by a fault index signal for counting, and the counting time is provided for a delay time required by fault verification. Therefore, fault detection circuits can be eliminated and the purpose of reducing the die area can be achieved.
REFERENCES:
patent: 7764521 (2010-07-01), Lin et al.
patent: 2008/0298099 (2008-12-01), Huang et al.
Fan Cheng-Hsuan
Huang Pei-Lun
Brooks Angela
Fureman Jared J
Richtek Technology Corp.
Rosenberg , Klein & Lee
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