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. 06, 2022
Filed:
Sep. 11, 2009
John Talbot Boys, Auckland, NZ;
John Talbot Boys, Auckland, NZ;
Auckland Uniservices Limited, Auckland, NZ;
Abstract
An Inductive Power Transfer System pickup provides a controlled AC power supply by controlled variation of the phase angle between the pickup coil induced voltage (jwMI) and the tuning capacitor C voltage. The phase angle can be varied by maintaining the tuning capacitor C voltage substantially constant for a selected time period. Switches Sand Smay be used to clamp the tuning capacitor C voltage at substantially zero volts during the selected time period. Switch Scan be operated to prevent a rise in positive voltage across the tuning capacitor, and switch Scan be used to prevent the voltage across the tuning capacitor from going negative.