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. 10, 2001
Filed:
May. 23, 2000
Toshinori Yamane, Tokyo, JP;
Hirotoshi Maekawa, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides an alternator having a small size and a high reliability wherein, the alternator is equipped with a switching power module,having a resin case,housing switching elements,and a driving circuit section,a smoothing capacitor,for smoothing a direct current output supplied to the switching elements,a control circuit section,for outputting a control signal to the driving circuit section,and a cooling member,a ceramic capacitor is used as the smoothing capacitor; a smoothing capacitor board,for mounting the smoothing capacitor,is disposed between an insulating board mounting with the switching elements,and a driving circuit board,mounting with the driving circuit section,and the smoothing capacitor board,functions also as an electromagnetic shielding plate for protecting the driving circuit section,against the switching noise of the switching elements.