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:
Jun. 28, 2011
Filed:
Aug. 29, 2008
Masashi Nakayama, Shizuoka, JP;
Shigemi Ishima, Shizuoka, JP;
Kazuhiro Aoki, Aichi, JP;
Akihito Tsukamoto, Aichi, JP;
Masashi Nakayama, Shizuoka, JP;
Shigemi Ishima, Shizuoka, JP;
Kazuhiro Aoki, Aichi, JP;
Akihito Tsukamoto, Aichi, JP;
Yazaki Corporation, Tokyo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-Shi, JP;
Abstract
The present invention is to provide a power supply control apparatus which can connect a ground to a suitable electric potential when the ground is disconnected. The power supply control apparatus includes a control circuit having a switch element and a switch control unit, and a load. One terminal of load is connected to a direct-current power supply through the switch element, and the other terminal is connected to a ground electric potential. The switch control unit has a ground terminal connected to the ground electric potential and outputting a ground current flowing toward the ground electric potential. The control circuit includes a bypass device having a load side bypass system for passing the ground current to the ground electric potential through the load when connection between the ground terminal and the ground electric potential is disconnected. The load includes impedance for changing the electric potential of ground terminal into an electric potential in which the switch control unit stably acts when the ground current flows.