Apparatus and method for reducing the die area of a PWM...

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means

Reexamination Certificate

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C363S050000

Reexamination Certificate

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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.

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