Hybrid Filter for High Slew Rate Output Current Application

To meet the stringent specifications of the voltage regulator (VR), hybrid filter concept is proposed. Based on this method, the output capacitance can be dramatically reduced.  Meanwhile, the power loss in the linear regulator is not severe any more because it only takes care of high frequency energy.  This new filter structure is more cost-effective than conventional solutions.  The design procedure and analysis are provided in this invention disclosure.  Simulation is used to verify the analysis.
Patent Information:
App Type Country Serial No. Patent No. File Date Issued Date Patent Status
US Utility *United States 11/380,064 7,560,912 4/25/2006 7/14/2009 Expired/Unpaid Fees
US Divisional *United States 12/401,815 7,583,065 3/11/2009 9/1/2009 Abandoned
For Information, Contact:
Li Chen
Licensing Associate
Virginia Tech Intellectual Properties, Inc.
(540) 443-9217
Ming Xu
Yuancheng (frank) Ren
Fred Lee
Andrew Schmit