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. 01, 2011
Filed:
Mar. 23, 2009
Hiroki Funato, Yokohama, JP;
Liang Shao, Ann Arbor, MI (US);
Kohji Maki, Novi, MI (US);
George Saikalis, West Bloomfield, MI (US);
Hiroki Funato, Yokohama, JP;
Liang Shao, Ann Arbor, MI (US);
Kohji Maki, Novi, MI (US);
George Saikalis, West Bloomfield, MI (US);
Hitachi, Ltd., Tokyo, JP;
Abstract
A controller for a power inverter having a gate assembly with an alternating current power output. A gate driver controls the activation of the gate assembly while a processor controls the operation of the gate driver. A current sensor has an output signal representative of the current at the power output. A noise detector circuit provides an output signal to the processor of the frequency of electromagnetic noise in the power inverter and the processor is programmed to sample the current from the current sensor at the frequency of the noise.