HOME
SEARCH
RSS FEED
SUBSCRIBE
Current Senseless AVP Method for Future VRM
Case ID:
03.117
Web Published:
9/3/2012
A novel method to achieve Adaptive Voltage Positioning (AVP) without any current sensing scheme is proposed. The accuracy of this method is better than the conventional MOSFET Rds sensing and inductor DCR sensing. No current control loop is needed to actively set the output impedance so that the stringent load line defined by Intel microprocessors can be satisfied. Furthermore, the proposed method enables high bandwidth control loop design that can reduce the decoupling capacitors. Simulation results as well as experimental verifications are given. This invented AVP method is very simple and accurate. It is a very good candidate to be used in the field of low voltage high current application such as 12V voltage regulator for microprocessors.
Patent Information:
App Type
Country
Serial No.
Patent No.
File Date
Issued Date
Patent Status
US Utility
*United States
11/094,433
7,605,572
3/31/2005
10/20/2009
Abandoned
Category(s):
Electrical
Bookmark this page
Download as PDF
For Information, Contact:
Li Chen
Licensing Associate
Virginia Tech Intellectual Properties, Inc.
(540) 443-9217
lchen@vtip.org
Inventors:
Ming Xu
Fred Lee
Jinghai Zhou
Keywords:
Electronics