Active voltage positioning implementation for microprocessor...

Details Active voltage positioning implementation for microprocessor... Active voltage positioning implementation for microprocessor...

2006-08-29

2006-08-29

Nguyen, Matthew V. (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

Reexamination Certificate

active

07098637

ABSTRACT:
An improved active voltage positioning (AVP) implementation for a power supply for a microprocessor or the like includes an AVP circuit which is separated from the power supply error amplifier by a buffer amplifier having a parallel RC feedback circuit to controllably adjust the transient response. An AVP signal derived from an output load current sensing element provides an input to the buffer amplifier. A second input is provided by power supply reference voltage. A output of the buffer amplifier is connected as an input to the error amplifier to provide the AVP window. This permits separate adjustment of the transient behavior of the error loop and the AVP loop.

REFERENCES:
patent: 6472856 (2002-10-01), Groom et al.
patent: 6683441 (2004-01-01), Schiff et al.
patent: 6795009 (2004-09-01), Duffy et al.
Analog Applications Journal—Optimal output filter deisgn for microproscessor or DSP power supply—by Rais Miftakhutdinov—Aug. 2000.
International Rectifier- System Accuracy Analysis of the Multiphase Voltage Regulator Module by Wenkang Huang et al.—Feb. 12, 2003.
International Rectifier- A Scalable Multiphase Buck Converter with Average Current Share Bus—Feb. 12, 2003.
Active Voltage Positioning Saves Output Capacitors in Portable Computer Applications by John Seago and Ajmal Godil—Feb. 2000.
Inductors Allow Loss-Less Current Sensing in Multiphase DC—DC Converters by Wenkang Huang, et al.—Jun. 1, 2001.
Active Voltage Positioning Reduces Output Capacitors by Robert Sheehan—Nov. 1999.
Design Procedure for Microprocessor Buck Regulators byLinFinity Microelectronics—Jul. 1998.
Using Dynamic Voltage Positioning to Reduce the Number of Output Capacitors in Microprocessor Power Supplies by National Semiconductor Corporation—Jul. 2000.
CPU 5-Bit Synchronous Buck Controller—Semiconductor Components Industries—Jan. 2001.
Maxim—Max 1994 Evaluation Kit- Maxim Integrated Products—Dec. 2002.

Affiliated with

Also associated with

Rating

Active voltage positioning implementation for microprocessor... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Active voltage positioning implementation for microprocessor..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active voltage positioning implementation for microprocessor... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3666597