Title:
WIRELESS POWER TRANSFER SYSTEMS WITH INTEGRATED IMPEDANCE MATCHING AND METHODS FOR USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2019/148070
Kind Code:
A3
Abstract:
A conventional wireless power transfer (WPT) system based on resonant inductive coupling typically operates at a peak power efficiency at the expense of a energy transfer rate. Impedance matching circuits can increase the energy transfer rate, but tend to increase the complexity, form factor, and weight of the WPT system. To overcome these limitations, a WPT system is described herein that includes a resonant circuit with integrated impedance matching. The resonant circuit includes a first coil, a first capacitor in series with the first coil, a second coil in series with the first coil and the first capacitor, and a second capacitor in parallel with the first coil and the first capacitor. The inductor coils and capacitances are tailored to increase the voltage gain and, thus, the energy transfer rate. The inductor coils also transmit or receive power, thus increasing the energy transfer rate and the power efficiency.
More Like This:
Inventors:
TANG SAI (US)
Application Number:
PCT/US2019/015352
Publication Date:
July 23, 2020
Filing Date:
January 28, 2019
Export Citation:
Assignee:
INDIGO TECH INC (US)
TANG SAI CHUN (US)
TANG SAI CHUN (US)
International Classes:
H01F38/14; H02J50/12
Foreign References:
| US20120248882A1 | 2012-10-04 | |||
| US20160072306A1 | 2016-03-10 | |||
| US20130270921A1 | 2013-10-17 | |||
| US20140125140A1 | 2014-05-08 |
Other References:
WANG ET AL.: "Design and Control of a 3 kW Wireless Power Transfer System for Electric Vehicles", 24 December 2015 (2015-12-24), XP055725685, Retrieved from the Internet [retrieved on 20190903]
Attorney, Agent or Firm:
COLICE, Christopher, Max et al. (US)
Download PDF:
Previous Patent: CONTROLLED DESCENT SAFETY SYSTEMS AND METHODS
Next Patent: SOLIDIFYING LIQUID ANIONIC SURFACTANTS
Next Patent: SOLIDIFYING LIQUID ANIONIC SURFACTANTS