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. 14, 2006
Filed:
Aug. 22, 2005
Massimo Grasso, S. Martino S., IT;
Aldo Torti, San Carlo Canavese, IT;
Andrea Merello, Arese, IT;
Jonas Aleksandravicius, Vilnius, LT;
Massimo Grasso, S. Martino S., IT;
Aldo Torti, San Carlo Canavese, IT;
Andrea Merello, Arese, IT;
Jonas Aleksandravicius, Vilnius, LT;
International Rectifier Corporation, El Segundo, CA (US);
Abstract
Current through a wire is sensed with a shunt resistor and a sense resistor in a current divider circuit. The values of the shunt resistor and sense resistor are related to provide a specified gain ratio to increase a dynamic range of current measurement. The sense resistor is a trimmable resistor, the configuration of which can be discerned from a look-up table based on a level of precision needed for current measurement. The two resistors can also be related by thermal coefficients to improve linearity of current measurements.