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:
Apr. 21, 2015
Filed:
Sep. 04, 2013
Sansha Electric Manufacturing Company, Limited, Osaka-shi, Osaka-fu, JP;
Hiroki Morimoto, Osaka, JP;
Tatsuya Kawabata, Osaka, JP;
Sansha Electric Manufacturing Company, Limited, Osaka-Fu, JP;
Abstract
Each of master and slave switching power supply apparatuses () has an IGBT (or) switching-controlled by a PWM pulse signal produced, based on a clock signal, by a switching device driving PWM pulse output section (or), to thereby provide DC power in parallel to a load (). The clock signal produced in the master switching power supply apparatus () is coupled to the slave switching power supply apparatus () through a photocoupler () in the master switching power supply apparatus () and a photocoupler () of the slave switching power supply apparatus (). Also, the clock signal developed at the output of the photocoupler () is coupled through a photocoupler () to the master switching power supply apparatus (). The photocouplers () have the same delay characteristic.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile