The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2003
Filed:
May. 24, 2002
Petr Lidak, Hladke Zivotice, CZ;
Nigel Allison, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A system ( ) regulates current and voltage in a power system by using a correction signal that is modified to compensate for errors associated with manufacturing variations. The correction signal controls a power switch ( ) that selectively sources/shunts current to/from the output load ( ) and power source. The compensation technique applies to systems conducting either an A.C. or a D.C. voltage. A current controller ( ) is placed in a control loop. The current controller contains circuitry having an offset voltage and loop gain errors as a result of manufacturing variations. At least one of the offset voltage and loop gain are dynamically calculated by a loop controller ( ) and the result is used to modify the correction signal to provide an accurate output load voltage and power line current.