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:
Dec. 09, 2014
Filed:
Jun. 17, 2010
Shuzo Nishino, Osaka, JP;
Shuzo Nishino, Osaka, JP;
Daifuku Co., Ltd., Osaka, JP;
Abstract
In order to provide contactless power-feed equipment that can avoid excessive energy consumption upon switching, a primary side includes a DC power-supply device, a power-feed device, and a power-feed unitand a secondary side includes a power-receiving unit. The power-feed deviceincludes: an insulating transformerincluding a primary coilwith a center tapfed with a DC current and a secondary coilconnected to the power-feed unit; a resonance capacitorconnected in parallel with the secondary coilof the insulating transformer; a first diodeand a first Zener diodethat are connected to one endof the primary coil; a second diodeand a second Zener diodethat are connected to the other endof the primary coil; a first transistorconnected to the first diode, and a second transistorconnected to the second diode