US Patent 7592775 Battery balancing including resonant frequency compensation

Patent 7592775 was granted and assigned to Aeroflex on September, 2009 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Aeroflex

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7592775

Date of Patent

September 22, 2009

Patent Application Number

11443151

Date Filed

May 31, 2006

Patent Primary Examiner

‌

Edward Tso

Patent abstract

A system for balancing charge between a plurality of storage battery cells within a storage battery. The battery balancing system sense changes, possibly caused by environmental influences, in the overall resonant frequency of charge balancing circuits contained within the battery balancing system. Using a phase locked loop based controller, the battery balancing system compensates for the change in resonant frequency by driving the battery balancing circuits at a frequency that matches the actual sensed resonant frequency of the battery balancing circuits.