Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2008-04-01
2008-04-01
Berhane, Adolf (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
Reexamination Certificate
active
07352159
ABSTRACT:
A synchronous Buck voltage regulator accepts an input voltage to provide a regulated output voltage to an information handling system processing component, such as a CPU. Input voltage is regulated by a control MOSFET, a synchronous MOSFET and a regulator controller that controls the output by controlling the control and synchronous MOSFETs. The synchronous MOSFET handles overvoltage events output from the control MOSFET by interfacing an inductor-capacitor tank circuit to reduce the overvoltage. A negative voltage protection MOSFET driver associated with the regulator controller monitors for negative voltage events that result from the interfacing of the inductor-capacitor tank circuit and selectively decouples the inductor-capacitor tank circuit if the negative voltage event is associated with a predetermined condition. The negative voltage protection MOSFET driver maintains the interface of the inductor-capacitor tank circuit if the overvoltage event is associated with a failed control MOSFET.
REFERENCES:
patent: 4782241 (1988-11-01), Baker et al.
patent: 5541500 (1996-07-01), Krahl
patent: 5602463 (1997-02-01), Bendall et al.
patent: 5959441 (1999-09-01), Brown
patent: 6028755 (2000-02-01), Saeki et al.
patent: 6087815 (2000-07-01), Pfeifer et al.
patent: 6148220 (2000-11-01), Sharp et al.
patent: 6507175 (2003-01-01), Susak et al.
patent: 6757526 (2004-06-01), Sharp et al.
patent: 6801027 (2004-10-01), Hann et al.
patent: 6804091 (2004-10-01), Jenkins et al.
patent: 6847197 (2005-01-01), Susak et al.
patent: 6911848 (2005-06-01), Vinciarelli
patent: 7045992 (2006-05-01), Silva et al.
patent: 2004/0130307 (2004-07-01), Dequina et al.
patent: 2005/0237044 (2005-10-01), Louvel et al.
patent: 2006/0119326 (2006-06-01), Jiang
Brukwicz Leszek
Luo Shiguo
Wood Merle
Zhu Guangyong
Berhane Adolf
Dell Products L.P.
Hamilton & Terrile LLP
Holland Robert W.
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