Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate
2011-01-11
2011-01-11
Vu, Bao Q (Department: 2838)
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
C323S282000, C323S284000, C323S285000
Reexamination Certificate
active
07868597
ABSTRACT:
A method of operating a synchronous power converter detects when at least one of an upper power switch and a lower power switch of the converter transition to an off state during a dead-time transition interval between the upper power switch and the lower power switch. The method generates a first comparison signal, indicative of a voltage level at a phase node of the converter, in a dead-time adjustment circuit coupled to the converter. The method further detects a body diode conduction level of at least one of the upper and lower power switches in the off state using at least a second comparison signal generated in the dead-time adjustment circuit and adjusts the dead-time transition interval between the upper power switch and the lower power switch using at least one current source from the dead-time adjustment circuit to reduce the dead-time transition interval to a desired dead-time interval.
REFERENCES:
patent: 4298835 (1981-11-01), Rowe
patent: 4541041 (1985-09-01), Park et al.
patent: 4731574 (1988-03-01), Melbert
patent: 4809150 (1989-02-01), Limuti et al.
patent: 4814684 (1989-03-01), McCurdy
patent: 5982160 (1999-11-01), Walters et al.
patent: 5994885 (1999-11-01), Wilcox et al.
patent: 6058037 (2000-05-01), Shibata et al.
patent: 6246220 (2001-06-01), Isham et al.
patent: 6396250 (2002-05-01), Bridge
patent: 6643145 (2003-11-01), Harrison
patent: 6812677 (2004-11-01), Walters et al.
patent: 6815936 (2004-11-01), Wiktor et al.
patent: 6861826 (2005-03-01), Lynch
patent: 6933706 (2005-08-01), Shih
patent: 6940262 (2005-09-01), Dequina et al.
patent: 7031175 (2006-04-01), Dequina et al.
patent: 7098640 (2006-08-01), Brown
patent: 7161332 (2007-01-01), Kleine et al.
patent: 7508175 (2009-03-01), DeWitt et al.
patent: 2004/0012346 (2004-01-01), Green et al.
patent: 2004/0041619 (2004-03-01), Nadd
patent: 2005/0128776 (2005-06-01), Dequina et al.
patent: 2005/0184714 (2005-08-01), Rusu et al.
patent: 2006/0017421 (2006-01-01), Solie et al.
patent: 2007/0069236 (2007-03-01), Capodivacca et al.
Baliga et al., “Paradigm Shift in Planar Power MOSFET Technology”, “Power Electronic Technology”, Nov. 2003, pp. 24-32, Publisher: Penton Media Inc.
“Synchronous Rectified MOSFET Driver (ISL6605)”, “http://www.intersil.com/data/fn/fn9091.pdf”, May 6, 2007, pp. 1-9, Publisher: Intersil Americas Inc.
Mappus, “Predictive Gate Drive Boosts Synchronous DC/DC Power Converter Efficiency”, “Application Report- SLUA281”, Apr. 2003, pp. 1-26, Publisher: Texax Instruments Inc.
“SI9150 Synchronous Buck Converter Controller”, “Objective Specification”, Sep. 10, 1991, Publisher: Siliconix Inc.
“Si9150 Power Products”, “Datasheet”, , Publisher: Siliconix Inc.
International Searching Authority, “International Search Report”, Dec. 3, 2008, Published in: WO.
Fogg & Powers LLC
Intersil America's Inc.
Vu Bao Q
LandOfFree
Dead-time transition adjustments for synchronous power... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dead-time transition adjustments for synchronous power..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dead-time transition adjustments for synchronous power... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2669092