Minimum on-time reduction method, apparatus, and system...

Details Minimum on-time reduction method, apparatus, and system... Minimum on-time reduction method, apparatus, and system...

2011-07-19

2011-07-19

Nguyen, Matthew (Department: 2838)

Electric power conversion systems

Current conversion

Including automatic or integral protection means

Reexamination Certificate

active

07983062

ABSTRACT:
The present invention discloses a minimum on-time reduction method for a switching power conversion, comprising the steps of: generating a first reset signal and an over-supply pulse signal according to a current sensing signal and a reference signal; generating a blanking signal according to a count number of the over-supply pulse signal; and generating a second reset signal by performing Logic-AND operation on the first reset signal and the blanking signal. Furthermore, the present invention also provides a minimum on-time reduction apparatus for a power conversion, and a system using the minimum on-time reduction apparatus for a power conversion.

REFERENCES:
patent: 6788556 (2004-09-01), Hosotani et al.
patent: 7176657 (2007-02-01), Lee et al.
patent: 7671573 (2010-03-01), Ling et al.
patent: 7834606 (2010-11-01), Liu et al.
patent: 2009/0201705 (2009-08-01), Murata et al.
patent: 2010/0188873 (2010-07-01), Zheng et al.

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