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:
Nov. 28, 2006
Filed:
Jul. 22, 2004
Takayuki Nagasawa, Kawasaki, JP;
Shinji Yajima, Kawasaki, JP;
Toshiyuki Teramoto, Kawasaki, JP;
Shunsuke Fueki, Kawasaki, JP;
Hiroshi Okubo, Hino, JP;
Masayoshi Isobe, Hino, JP;
Takeshi Kikuchi, Hino, JP;
Andrzej Radecki, Tokyo, JP;
Takayuki Nagasawa, Kawasaki, JP;
Shinji Yajima, Kawasaki, JP;
Toshiyuki Teramoto, Kawasaki, JP;
Shunsuke Fueki, Kawasaki, JP;
Hiroshi Okubo, Hino, JP;
Masayoshi Isobe, Hino, JP;
Takeshi Kikuchi, Hino, JP;
Andrzej Radecki, Tokyo, JP;
Fujitsu Limited, Kawasaki, JP;
FFC Limited, Tokyo, JP;
Abstract
A power supply circuit for supplying power to a load includes an antenna which receives electric power, a rectifier coupled to the antenna and configured to convert an alternating voltage supplied from the antenna into a direct-current voltage, a voltage step-down circuit which steps down the direct-current voltage to generate an output voltage for provision to the load, a regulator which controls a resistance connected between the output voltage and a ground voltage in parallel with the load, thereby controlling a voltage level of the output voltage.