Title:
電力変換装置の制御装置および制御方法
Document Type and Number:
Japanese Patent JP4811102
Kind Code:
B2
Abstract:
A controller and method for reducing EMI noise by changing a frequency of a control (or carrier) signal in accordance with a waveform that periodically changes within a first frequency range from a frequency fc1 to a frequency fc2, where the frequency fc1 is smaller than the frequency fc2, and a second frequency range from a frequency fc3 to a frequency fc4, where the frequency fc3 is smaller than the frequency fc4. The frequencies fc1 and fc4 satisfy the inequalities (n-1)·fc4 ¤ n·fc2 and n·fc3 ¤ (n+1)·fc1 and/or satisfy an approximate expression n·fc4 (n+1)·fc1 where n is an integer. The frequencies fc2 and fc3 satisfy the inequalities n·fc2 ¤ fs-fs and fs+fs ¤ n·fc3 where fs±fs represents a predetermined frequency band.
Inventors:
Yasuaki Hayami
Kentaro Hata
Craison Tronnam Chai
Kentaro Hata
Craison Tronnam Chai
Application Number:
JP2006122069A
Publication Date:
November 09, 2011
Filing Date:
April 26, 2006
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
H02M7/48
Domestic Patent References:
| JP2006094650A | ||||
| JP62279718A | ||||
| JP7099795A |
Attorney, Agent or Firm:
Eternal patent business corporation
Yoshihiko Izumi
Yoshihiko Izumi