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:
Feb. 21, 2012
Filed:
Dec. 11, 2008
Kenneth A. Ostrom, Palos Verdes Estates, CA (US);
Timothy M. NG, Monterey Park, CA (US);
Benjamim Tang, Rancho Palos Verdes, CA (US);
Kenneth A. Ostrom, Palos Verdes Estates, CA (US);
Timothy M. Ng, Monterey Park, CA (US);
Benjamim Tang, Rancho Palos Verdes, CA (US);
Infineon Technologies Austria AG, Villach, AT;
Abstract
Methods and apparatus for current sensing according to various aspects of the present invention sense the current in a circuit, such as an inductor circuit. The current sensing systems may comprise an RC element connected such that the RC time constant matches the L/R time constant of the inductor. The current sensor may be configured to generate voltages that are proportional to the instantaneous current in the inductor with scaled gain for a wide range of inductor self resistance (DCR) values.