Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2007-04-04
2009-10-06
Sterrett, Jeffrey L (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S222000, C323S285000
Reexamination Certificate
active
07598715
ABSTRACT:
A synchronous switching voltage regulator circuit is provided. After the first PWM pulse or at the end of a soft-start, a gradual transition is made from asynchronous rectification to fully synchronous rectification, or vice versa. During the gradual transition, the error voltage is level-shifted down to correct for error caused by reverse current through the body diode of the main switch.
REFERENCES:
patent: 5731731 (1998-03-01), Wilcox et al.
patent: 5912552 (1999-06-01), Tateishi
patent: 6091234 (2000-07-01), Kitagawa
patent: 6346798 (2002-02-01), Passoni et al.
patent: 6476589 (2002-11-01), Umminger et al.
patent: 6490183 (2002-12-01), Zhang
patent: 6603671 (2003-08-01), Tokunaga et al.
patent: 6661208 (2003-12-01), Rutter et al.
patent: 6674268 (2004-01-01), Rutter et al.
patent: 6683441 (2004-01-01), Schiff et al.
patent: 6696821 (2004-02-01), Haraguchi et al.
patent: 6841977 (2005-01-01), Huang et al.
patent: 6894468 (2005-05-01), Bretz et al.
patent: 6909619 (2005-06-01), Saeki et al.
patent: 7045992 (2006-05-01), Silva et al.
patent: 7109688 (2006-09-01), Chiu et al.
patent: 7119524 (2006-10-01), Bretz et al.
patent: 7482795 (2009-01-01), Parto et al.
patent: 2008/0157732 (2008-07-01), Williams
LTC 1873: Dual 550kHz Synchronous 2-Phase Switching Regulator Controller with 5-Bit VID, Linear Technology, 1999, pp. 1-32.
LTC 3406-1.5/LTC3406-1.8: 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT, Linear Technology Corporation, 2002, pp. 1-16.
Maxim: Low-Noise, 14V Input, 1A, PWM Step-Down Converters, MAX1684/MAX1685, Maxim Integrated Products, 2001, pp. 1-14.
Peterchev, Angel V. et al., “Digital Multimode Buck Converter Control With Loss-Minimizing Synchronous Rectifier Adaptation,” IEEE Transactions on Power Electronics, Nov. 2006, vol. 21, No. 6, pp. 1-12.
Mappus, Steve “Application Report: SLUA281 Predictive Gate Drive™ Boosts Synchronous DC/DC Power Converter Efficiency,” Texas Instruments, Apr. 2003, pp. 1-26.
Acker, Brian et al., “Synchronous Rectification with Adaptive Timing Control,” Department of Electrical Engineering and Computer Sciences, Jun. 1995, pp. 88-95.
Blanc, James, “Practical Application of Mosfet Synchronous Rectifiers,” Siliconix Incorporated, Nov. 1991, pp. 495-501.
Smith, Marvin W. et al., “Improving the Efficiency of Low Output Voltage Switched-Mode Converters with Synchronous Rectification,” Proceedings of Powercon7, Mar. 24-27, 1980, pp. 1 - 1 5.
Deuty, Scott “Exploring the Options for Distributed and Point of Load Power in Telecomm and Network Applications,” Semtech Corporation, 2004, pp. 223-229.
Kagan, Richard S. et al., “Improving Power Supply Efficiency With Mosfet Synchronous Rectifiers,” Proceedings of Powercon9, Power Concepts, Inc., 1982, pp. 1-7.
Nowakowski, R. “PoL Position,” Electronic Design (Europe) Online, Sep. 2005, pp. 1-6.
Morrison, David “Low-Cost PFC Design Meets Regulatory Standards,” Power Electronics Technology, Aug. 2005, pp. 1-6.
Gutierrez, Neil “Hot Swap with Confidence: LM5069 Positive Hot Swap Controller,” National Semiconductor, Oct. 2006, pp. 1-43.
LM3495 Emulated Peak Current Mode Buck Controller for Low Output Voltage, National Semiconductor Apr. 2006, pp. 1-26.
LM3743 N-Channel FET Synchronous Buck Controller for Low Output Voltages, National Semiconductor, Sep. 2006, pp. 1-23.
Delta Electronics Introduces the S48SP Into Their Delphi Series of Board Mounted DC/DC Power Converters, Delta, May 10, 2004, Taiwan, pp. 1.
LSN2 Series: Non-Isolated, DOSA-SIP, 6/10/16A Selectable-Output DC/DC Converters, Datel Technologies Company, pp. 1-14.
LM5116 Wide Range Synchronous Buck Controller, National Semiconductor Corporation, Feb. 2007, pp. 1-26.
Faruk, Nome et al., “The Challenge of Pre-Biased Loads and the Definition of a New Operating Mode for DC-DC Converters,” National Semiconductor Corporation, pp. 1-7.
'Highly Cost-Effective POL Converters, Power Electronics Technology, Sep. 7, 2005. pp. 1-3.
Hariman George A.
Silva Faruk Jose Nome
Darby & Darby P.C.
Gaffney Matthew M.
National Semiconductor Corporation
Sterrett Jeffrey L
LandOfFree
Apparatus and method for reverse current correction for a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for reverse current correction for a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for reverse current correction for a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4130002