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:
Dec. 26, 2006
Filed:
Jun. 18, 2004
David Michael Bray, Edinburgh, GB;
David Michael Bray, Edinburgh, GB;
Agilent Technologies, Inc., Palo Alto, CA (US);
Abstract
A method and apparatus for providing improved electromagnetic compatibility between a power source () and a switching element () in a switched mode power supply includes a device () for measuring an electrical variable, for example current, that fluctuates as the switching element () switches power received from the power source (). A signal injector () is arranged to generate an electrical signal, for example current, of substantially the same amplitude, but opposite polarity, as the measured current, and to inject it between the power source () and the switching element () so as to tend to minimize fluctuations in the electrical variable.