Electricity: power supply or regulation systems – Output level responsive – Zero switching
Reexamination Certificate
2011-08-09
2011-08-09
Berhane, Adolf (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Zero switching
C363S021030
Reexamination Certificate
active
07994758
ABSTRACT:
A power supply device comprises a driver circuit, a transistor switch, and a first transistor. The driver circuit is configured to provide a stable driving signal and a floating driving signal. The transistor switch has a first terminal, a second terminal connected to a first terminal of the driver circuit, and a third terminal connected to a second terminal of the driver circuit, and is configured to prevent a reverse current based on the floating driving signal. The first transistor has a first current electrode connected to the first terminal of the transistor switch, a second current electrode connected to the first voltage reference, and a control electrode connected to the third terminal of the driver circuit, and is configured to activate and deactivate based on the stable driving signal, and further configured to regulate an input voltage to a substantially constant direct current output voltage.
REFERENCES:
patent: 6680629 (2004-01-01), Rankin et al.
patent: 7093048 (2006-08-01), Bobbitt et al.
patent: 2007/0085515 (2007-04-01), Nishida
patent: 2007/0257647 (2007-11-01), Chen et al.
patent: 2009/0128111 (2009-05-01), Chang Chien
patent: 2009/0302814 (2009-12-01), Kapels et al.
U.S. Appl. No. 11/970,977, filed Jan. 8, 2008.
Livescu Constantin D.
Popescu Lucian
Berhane Adolf
Dell Products LP
Larson Newman, LLP
Pham Emily
LandOfFree
System and method for improving efficiency of a power factor... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for improving efficiency of a power factor..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for improving efficiency of a power factor... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2625259