Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2007-05-22
2007-05-22
Sterrett, Jeffrey (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S283000, C323S285000, C323S299000
Reexamination Certificate
active
11030688
ABSTRACT:
A method for controlling a switching power converter provides an efficient algorithm for controlling the output voltage across loads that are relatively light with small transients. When the output voltage is at or below a predetermined first magnitude, a determination is made of the charge required for one or more pulses to increase the output voltage to a predetermined second magnitude which is greater than a target output voltage. Corrective action is taken to raise the output voltage to the second magnitude and the system takes no further corrective action until output voltage is determined to be at or below the first magnitude. The method is useful with synchronous or non-synchronous power converters of buck, boost, buck/boost or other topologies. The method further provides a simple means for determining the amount of charge removed from a battery.
REFERENCES:
patent: 4349703 (1982-09-01), Chea, Jr.
patent: 5694029 (1997-12-01), Hayes et al.
patent: 5731694 (1998-03-01), Wilcox et al.
patent: 5801518 (1998-09-01), Ozaki et al.
patent: 5880947 (1999-03-01), Imanaka et al.
patent: 5945820 (1999-08-01), Namgoong et al.
patent: 6057675 (2000-05-01), Tateishi
patent: 6058030 (2000-05-01), Hawkes et al.
patent: 6149532 (2000-11-01), Kim
patent: 6154015 (2000-11-01), Ichiba
patent: 6166527 (2000-12-01), Dwelley et al.
patent: 6181123 (2001-01-01), Jou et al.
patent: 6188252 (2001-02-01), Kawakami
patent: 6400127 (2002-06-01), Giannopoulos
patent: 6448746 (2002-09-01), Carlson
patent: 6456049 (2002-09-01), Tsuji
patent: RE38140 (2003-06-01), Schaffer
patent: 6713994 (2004-03-01), Inaba
patent: 6940189 (2005-09-01), Gizara
patent: 6954054 (2005-10-01), Brown
patent: 6977488 (2005-12-01), Nogawa et al.
patent: 7012412 (2006-03-01), Kanamori et al.
patent: 7098640 (2006-08-01), Brown
patent: WO 00/26740 (2000-05-01), None
Endoh, T., et al., “An On-Chip 96.5% Current Efficiency CMOS Linear Regulator Using a Flexible Control Technique of Output Current,”IEEE Journal of Solid-State Circuits, vol. 36, No. 1, Jan. 2001, pp. 34-39.
Mathews, T., “Switching regulators demystified,” Dec. 7, 2000, 8 pp.
Patella, B.J. et al., “High-Frequency Digital Controller IC for DC/DC Converters,” 17thAnnual IEEE Applied Power Electronics Conference and Exposition, Dallas, TX, Mar. 10-14, 2002, Annual Applied Power Electronics Conference, New York, NY, IEEE, US, vol. 2 of 2, Conf. 17, Mar. 10, 2002, pp. 374-380.
Peterchev, A.V. and Sanders, S.R., “Quantization Resolution and Limit Cycling in Digitally Controlled PWM Converters,”IEEE Power Electronics Specialists Conference, 2001, 7 pp.
Takeshita, T., et al., “Software Controlled Switched-Mode Power Supply Using DSP,”Electronics and Communications in Japan, Part 1, vol. 84, No. 4, 2001, pp. 22-31.
Wu, A.M., et al., “Digital PWM Control: Application in Voltage Regulation Modules,”IEEE Power Electronics Specialists Conference, 1999, vol. 1, pp. 77-83.
Wu, A.M. and Sanders, S.R., “An Active Clamp Circuit for Voltage Regulation Module (VRM) Applications,”IEEE Transactions on Power Electronics, vol. 16, No. 5, Sep. 2001, pp. 623-634.
Xiao, J., et al., “Architecture and IC Implementation of a Digital VRM Controller,”IEEE Power Electronics Specialists Conference, 2001, 10 pp.
Sharp, LCD Application Note, Flat Panel Displays, 1999, 5 pp.
Hantronix, Inc., Application Note, Crystal Clear and Visibly Superior LCD Modules, 2001, 5 pp.
Intersil Corporation, intersil™, ISL6523, Data Sheet, Jan. 2002, FN9024.1, pp. 1-16.
International Rectifier, IRU3037/IRU3037A, Data Sheet No. PD94173, pp. 1-11, Mar. 6, 2002.
Applications, Touchscreens 101, http://www.pcioh.com/apps-touch-102.html, Nov. 5, 2002, 2 pp.
3M Touch Systems, MicroTouch™, 2002, 6 pp.
Kernahan Kent
Ribeiro Milton D.
Caldwell Michael W.
FyreStorm, Inc.
Heid David W.
MacPherson Kwok & Chen & Heid LLP
Sterrett Jeffrey
LandOfFree
Switching power converter employing pulse frequency... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Switching power converter employing pulse frequency..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switching power converter employing pulse frequency... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3805956