Switching device and related operating method

Details Switching device and related operating method Switching device and related operating method

2006-04-03

2010-06-15

Laxton, Gary L (Department: 2838)

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

C323S283000, C455S298000

Reexamination Certificate

active

07738269

ABSTRACT:
A switching device30and a related operating method are disclosed for generate a train of drive pulses under a basic pattern for a repetition cycle time T. The train of drive pulses has leading edges shifted from basic time periods T1by shift amounts Φ0to Φ02, respectively, which are different from each other, whereby switching frequencies, occurring based on the leading edges of the drive pulses, are spread. A spread frequency, which is a inverse number of the cycle time T of the basic pattern, is set to be higher than an audible frequency.

REFERENCES:
patent: 5488627 (1996-01-01), Hardin et al.
patent: 6538484 (2003-03-01), Rappaport et al.
patent: 6549429 (2003-04-01), Konno
patent: 6992469 (2006-01-01), King
patent: 7109695 (2006-09-01), King
patent: 7248027 (2007-07-01), Ribeiro et al.
patent: 7269035 (2007-09-01), Kawasaki et al.
patent: 7482794 (2009-01-01), Hunt et al.
patent: 2003/0026116 (2003-02-01), Ueki et al.
patent: 2005/0146366 (2005-07-01), Steinschaden
patent: 2006/0140286 (2006-06-01), Goto et al.
patent: 10 2005 062 451 (2006-07-01), None
patent: A-60-035399 (1985-02-01), None
patent: A-63-099769 (1988-05-01), None
patent: A-04-058756 (1992-02-01), None
patent: A 2001-218461 (2001-08-01), None
patent: A 2002-335672 (2002-11-01), None
patent: A 2003-079134 (2003-03-01), None
patent: A 2003-079135 (2003-03-01), None
patent: A 2003-088101 (2003-03-01), None
patent: A-2003-153526 (2003-05-01), None
U.S. Appl. No. 11/319,062, filed Dec. 28, 2005, Goto et al.
Translation of German Office Action issued Nov. 28, 2007.
State Intellectual Property Office, P.R. China, 2ndOffice Action, Nov. 28, 2008.
German Patent and Trademark Office, Office Action, Dec. 5, 2008.
Notification of Reasons for Rejection issued in Japanese Application No. 2005-105843 on May 7, 2008.

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