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. 30, 2009
Filed:
Jul. 26, 2007
Kazumaro Takaiwa, Kawasaki, JP;
Yuichi Kotaki, Kawasaki, JP;
Kazuaki Kobayashi, Kawasaki, JP;
Takashi Nakajima, Kawasaki, JP;
Masahiro Agata, Kawasaki, JP;
Yoshihisa Funami, Kawasaki, JP;
Kazumaro Takaiwa, Kawasaki, JP;
Yuichi Kotaki, Kawasaki, JP;
Kazuaki Kobayashi, Kawasaki, JP;
Takashi Nakajima, Kawasaki, JP;
Masahiro Agata, Kawasaki, JP;
Yoshihisa Funami, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A distributed power supply circuit supplying common power to multiple packages in an apparatus so that a primary voltage of the common power is converted into a secondary voltage in a voltage conversion part so as to be supplied to a circuit in each of the packages is disclosed. The distributed power supply circuit includes a power supply monitoring part configured to monitor the primary voltage; a reset part configured to stop the supply of the primary voltage to the voltage conversion part when the power supply monitoring part detects the abnormality of the primary voltage; and a discharge part configured to release a stored charge on the primary side of the voltage conversion part when the power supply monitoring part detects the abnormality of the primary voltage. The power supply monitoring part is separated from the reset part by multiple diodes so as to be provided in parallel with the reset part.