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. 27, 1995
Filed:
Oct. 19, 1993
Michio Kigawa, Tokyo, JP;
Shinichi Higuchi, Iwaki, JP;
Alps Electric Co, Ltd., Tokyo, JP;
Kigawa Electronic Engineering Laboratory, Inc., Tokyo, JP;
Abstract
OBJECT: To provide a non-contact power supply apparatus capable of supplying stable power very efficiently even when changes in load at the receiving side occur by tuning AC frequency supplied to the oscillating circuit on the receiving side and the resonant frequency of the resonance circuit on the receiving side. CONSTITUENTS: At the receiving side is provided a resonance circuit 3 in which resonance coil L3 on the receiving side is connected in parallel with resonance capacitor C3. At the supplying side are provided a detecting coil L2 which detects resonant frequency of resonance circuit 3 on the receiving side and a control means 1 which tunes AC frequency supplied to the aforementioned oscillating circuit 2 on the supplying side with resonant frequency of the aforementioned oscillating circuit 3 on the receiving side according to the frequency of induced electromotive force detected by said detecting coil L2.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile