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:
Sep. 18, 2012
Filed:
Apr. 12, 2007
Hitoshi Haga, Miyagi, JP;
Hitoshi Haga, Miyagi, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A controller () includes subtracters (), a command value corrector (), and a control block (). The subtracter () obtains a deviation (Δv) of an output voltage (v) applied from a switching power-supply circuit () to a second load (Cdc+Load) with respect to its command value (v). The control block () performs PI control on the basis of the deviation (Δv) to generate a command value (idc*) for a current (idc) flowing in a coil (Ldc). The command value corrector () corrects the command value (idc*) such that high-frequency components of a current (iL) flowing in a first power-supply line (), with respect to the fundamental frequency of an input current (iu, iv, iw), are consumed in the switching power-supply circuit (). The subtracter () obtains a deviation (Δidc) between the corrected command value (idc*) and the current (idc). Commands (r, r) for switches are generated on the basis of the deviation (Δidc).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile