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:
Sep. 13, 2022
Filed:
Dec. 28, 2018
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Tetsurou Tateyama, Hitachinaka, JP;
Kumiko Yoshinaga, Hitachinaka, JP;
Eiji Ichikawa, Hitachinaka, JP;
Hirofumi Watanabe, Hitachinaka, JP;
Mototaka Takahashi, Hitachinaka, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
A wiring board () has first and second rigid sections () each having six metal leaf layers, and a flexible section () having two metal leaf layers that connect the both rigid sections (). A capacitor unit () and a filter unit, which supplies power to an inverter, are mounted on the first rigid section (), and a CPU () and a pre-driver circuit element () are mounted on the second rigid section (). Mutually-independent two control systems are arranged so as to be symmetrical about a board center line (M). Detection signal lines () of rotation sensors () located at the middle of the first rigid section () extend along the board center line (M) on the flexible section (). Each of the two control systems is configured along a wiring direction of the detection signal lines ().