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:
Mar. 15, 2016
Filed:
Aug. 09, 2012
Ayumu Hatanaka, Naka, JP;
Takuya Mayuzumi, Hitachinaka, JP;
Chihiro Sato, Kasama, JP;
Yoshitaka Abe, Hitachinaka, JP;
Daisuke Sekine, Hitachinaka, JP;
Hirofumi Kurimoto, Hitachinaka, JP;
Ayumu Hatanaka, Naka, JP;
Takuya Mayuzumi, Hitachinaka, JP;
Chihiro Sato, Kasama, JP;
Yoshitaka Abe, Hitachinaka, JP;
Daisuke Sekine, Hitachinaka, JP;
Hirofumi Kurimoto, Hitachinaka, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
A capacitor connected to a microcomputer voltage wiring is downsized. A series regulator on an electronic control unit for automotive includes a battery as an in-vehicle power supply, a relay, an input side capacitor, a series regulator circuit, and an output side capacitor, and is connected to a microcomputer. The series regulator circuit includes an n-channel MOSFET, a gate voltage regulator circuit as an output control circuit of an FET, and a gate voltage holding capacitor. A capacitor GND voltage (gate voltage) is adjusted by the gate voltage regulator circuit to convert an input side capacitor voltage into an output side capacitor voltage, and supply a microcomputer current to the microcomputer.