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:
Oct. 21, 2008
Filed:
Jan. 16, 2003
Takayoshi Endou, Kanagawa, JP;
Takayoshi Endou, Kanagawa, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
It is an object of the present invention to provide a high efficiency hybrid power supply system that permits a power type power supply device such as a capacitor to be utilized effectively, and that makes it possible to even the burden on an energy type power supply device such as a storage cell. A capacitoris connected to system voltage linesandwhich are connected to a load, and a body formed by a serial connection between a large-capacity storage celland the output terminal of a voltage controlleris connected in parallel with this capacitor. The voltage Vb of the storage cellis substantially constant. The voltage controlleris a DC/DC converter, for example, the output voltage Vv of which is variable. A system controllerchanges the system voltage Vs by changing the output voltage Vv of the voltage controller. When a large amount of electric power is to be supplied to the load, energy is rapidly discharged from the capacitorand supplied to the loadby lowering the system voltage Vs. When a large amount of electric power is to be fed back from the load, energy from the loadis rapidly absorbed by the capacitorby raising the system voltage Vs.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile