Non-linear control techniques for improving transient...

Details Non-linear control techniques for improving transient... Non-linear control techniques for improving transient...

2011-01-04

2011-01-04

Nguyen, Matthew V (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S285000

Reexamination Certificate

active

07863875

ABSTRACT:
A voltage regulator may be configured to detect variation in load current and control transient response when the load current has a high slew rate or varies at high repetition rates. A linear control circuit may be employed to control charging of an output capacitor and a load of the regulator. Upon detection of high load current step-up change at high slew rates, a non-linear control circuit may be activated. The fast load current step change may be detected by comparing an output voltage of the regulator to a feedback input of an error amplifier of the linear control circuit. The output of the error amplifier may be clamped to prevent output voltage ring-back when using the non-linear control circuit or to control load release dip. Output voltage overshoot may be controlled by turning OFF a top switch that charges the output capacitor before the inductor current becomes zero.

REFERENCES:
patent: 4243975 (1981-01-01), Masuda et al.
patent: 5852415 (1998-12-01), Cotter et al.
patent: 6226419 (2001-05-01), Lodwick et al.
patent: 6320426 (2001-11-01), Shih
patent: 6459335 (2002-10-01), Darmawaskita et al.
patent: 6535061 (2003-03-01), Darmawaskita et al.
patent: 6683441 (2004-01-01), Schiff et al.
patent: 6809504 (2004-10-01), Tang et al.
patent: 7064528 (2006-06-01), Jochum et al.
patent: 7064693 (2006-06-01), Huang et al.
patent: 7133751 (2006-11-01), Kurd et al.
patent: 7135836 (2006-11-01), Kutkut et al.
patent: 7157924 (2007-01-01), Muhtaroglu et al.
patent: 7158395 (2007-01-01), Deng et al.
patent: 7164275 (2007-01-01), Gasperi
patent: 7170765 (2007-01-01), Huang
patent: 7180919 (2007-02-01), Kurusu
patent: 7202646 (2007-04-01), Vinciarelli
patent: 7225349 (2007-05-01), Tam et al.
patent: 7248082 (2007-07-01), Nakasha et al.
patent: 7256089 (2007-08-01), List et al.
patent: 7274181 (2007-09-01), Schrom et al.
patent: RE39976 (2008-01-01), Schiff et al.
patent: 7339357 (2008-03-01), Lopata
patent: 7417879 (2008-08-01), Sawtell
patent: 7521907 (2009-04-01), Cervera et al.
patent: 7615982 (2009-11-01), Guo
8-Bit Programmable 2-to 4- Phase Synchronous Buck Controller, Apr. 12, 2006, pp. 1-32, Preliminary Technical Data, ADP3192, 2004 Analog Devices, Inc. All rights reserved.
Forghani-Zadeh,H.S, et al. , “Current-Sensing Techniques for DC-DC Converters”, Published 2002, pp. 1-4, IEEE, Georgia Tech Analog Consortium, Georgia Institute of Technology, Atlanta, GA.
“8-Bit Programmable, 2- to 3- Phase Synchronous Buck Controller”, Jan. 2007, pp. 1-39, FAN5033 Rev 1.0.0, Fairchild Semiconductor Corportation.
“8-Bit Programmable 2- to 5- Phase Synchronous Buck Controller”, Jan. 2007, pp. 1-3, FAN5029 Rev. 1.1.3, Fairchild Semiconductor Corporation.
“6-Bit VID Controller 2-4 Phase VRM 10.X Controller”, Jan. 5, 2004, pp. 1-30, FAN5019 Rev. 1.0.7, Fairchild Semiconductor Corporation.
“8-Bit Programmable, 2 to 4 Phase, Synchronous Buck Controller”, Mar. 2006, pp. 1-3, FAN5031 Rev. 1.0.1, Fairchild Semiconductor Corporation.

Affiliated with

Also associated with

Rating

Non-linear control techniques for improving transient... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Non-linear control techniques for improving transient..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-linear control techniques for improving transient... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2715816