Electrical feed line integrated filtering for inductive power transfer systems

US10771033B2 · kind B2 · utility

Assignee

• WiTricity Corporation · US

Inventors

• Prasanth Venugopal · Munich, DE
• Martin Pavlovsky · Munich, DE
• Nicholas Athol Keeling · Munich, DE
• Stefan Raabe · Munich, DE
• Daniel Kuerschner · Grasbrunn, DE
• Roman Heinrich · Munich, DE
• Simon Islinger · Munich, DE

Key dates

• Filing date: Jun 19, 2018
• Grant date: Sep 8, 2020
• Expiry date: Dec 13, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T90/14
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Certain aspects of the present disclosure are generally directed to apparatus for attenuating unwanted frequencies using a feed line with integrated filtering. In certain aspects, a feed line for filtering unwanted frequencies in a wireless power transfer system is provided, the feed line including a first end, wherein the first end is configured to connect to a power source that generates a driving signal having a driving signal frequency, and a second end, wherein the second end is configured to connect to a wireless power transfer element configured to wirelessly transmit power. The feed line further includes a conductor core, wherein the conductor core is configured to transfer the driving signal from the power source to the wireless transfer element. The feed line further includes an integrated filter configured to attenuate at least one frequency generated by the wireless power transfer system.