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:
Jul. 28, 2009
Filed:
Dec. 12, 2006
Applicants:
Hidenori Sugino, Sakura, JP;
Naoki Takata, Narashino, JP;
Inventors:
Hidenori Sugino, Sakura, JP;
Naoki Takata, Narashino, JP;
Assignee:
Hitachi Industrial Equipment System Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02M 5/458 (2006.01); H02M 5/45 (2006.01);
U.S. Cl.
CPC ...
Abstract
A power conversion apparatus is disclosed. In the case where a coil is arranged in a power module, the circuit system between the ends of the coil in the power module, regardless of where the coil is located, is structurally isolated and insulated from each other. This isolation and insulation prevents the capacitance from being created across the coil, and the coil can exhibits the effect as a filter, thereby improving the characteristics of a noise filter.