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:
Oct. 25, 2011
Filed:
Dec. 11, 2008
Benjamin Tang, Rancho Palos Verdes, CA (US);
Timothy M. NG, Monterey Park, CA (US);
Kenneth Ostrom, Palos Verdes Estates, CA (US);
Benjamin Tang, Rancho Palos Verdes, CA (US);
Timothy M. Ng, Monterey Park, CA (US);
Kenneth Ostrom, Palos Verdes Estates, CA (US);
Infineon Technologies Austria AG, Villach, AT;
Abstract
Methods and apparatus for current sensing in mutually coupled inductors according to various aspects of the present invention may operate in conjunction with a control system adapted to control current through the inductors and multiple current sensors connected to the control system. Each current sensor may comprise a series combination comprising a capacitor and a resistor. The series combination may be connected in parallel with one of the inductors, and may be adapted to generate branch inductor current signals according to a sensed current in the connected inductor. In addition, a coupling capacitor may be coupled between at least two of the current sensors to compensate a time constant of the current sensor for mutual coupling inductance between the inductors.