Ut-battelle, Inc.

Bayerische Motoren Werke Aktiengesellschaft

Omer C Onar

Burak Ozpineci

Gui-Jia Su

Jason L Pries

Veda Prakash Galigekere

Erdem Asa

Clifford P White

Mostak Mohammad

Bernhard Hoess

Leon Monroe Tolbert

John M Miller

Madhu Sudhan Chinthavali

Aleksandar D Dimitrovski

Perry T Jones

Larry E Seiber

Stefan Weindl

Juntao Zhu

Vincent Molina

Paul H Chambon

Steven L Campbell

Philip R Irminger

Lixin Tang

Fei (Fred) Wang

Daniel J Costinett

Zhi Li

Jingxin Wang

Emrullah Aydin

Fei Yang

Stephan Peuckmann

Sheng Zheng

Michael Saegmueller

A coil, comprising: a wire wound to form a plurality of double-D (DD) sub-coils, each said DD sub-coil having a plurality of sides defining one of a plurality of hexagonal shaped segments arranged to define a honeycomb structure; wherein a magnetic field is created when current passes through the plurality of DD sub-coils, the plurality of DD sub-coils being configured so that when activated the current flows in a same first direction through adjacent sides of first and second ones of the plurality of DD sub-coils, flows in a same second direction through adjacent sides of first and third ones of the plurality of DD sub-coils, and flows in a same third direction through adjacent sides of the second and third ones of the plurality of coils.

Honeycomb multi-DD coil design for wireless power transfer systems

A wireless power transfer (WPT) device includes a polyphase coil network comprising a plurality of phases for transfer of high-frequency AC power, each one of the plurality of phases comprising a phase coil, wherein the polyphase coil network is configured to operate in a polyphase configuration to enable transfer of polyphase high-frequency AC power with a mating WPT device operating in a polyphase mode; and operate in a single phase interoperability configuration to enable transfer of single phase high-frequency AC power with a mating WPT device operating in a single phase mode.

Interoperable wireless charging with polyphase coil network

A method for wirelessly or conductively (non-wireless) providing AC or DC power in AC or DC load applications and bidirectional applications.

Wireless power system

A wireless power supply power supply including first tuning circuitry coupled directly to a transmitter, the first tuning circuitry including an LCC configuration. The wireless power supply may include second tuning circuitry coupled directly to switching circuitry (e.g., an inverter) of the power supply, where the second tuning circuitry may be operable to direct power from the switching circuitry to the first tuning circuitry for supply to the transmitter, and where the second tuning circuitry includes a reactance operable to establish inductive operation of the switching circuitry at the switching frequency of the switching circuitry.

Tuning circuitry for a wireless power system

A direct current controller includes a rectifier configured to convert alternating current input into a direct current output. A converter electrically coupled to the rectifier generates a converted direct current voltage that regulates a converted direct current from the direct current output of the rectifier and synthesizes an ac component of an alternating current grid to counteract an induced back-emf. A direct current controller central controller coupled to the converter regulates the converted direct current.

DC current controller for continuously variable series reactor

A wireless power transfer overvoltage protection system is provided. The system includes a resonant receiving circuit. The resonant receiving circuit includes an inductor, a resonant capacitor and a first switching device. The first switching device is connected the ends of the inductor. The first switching device has a first state in which the ends of the inductor are electrically coupled to each other through the first switching device, and a second state in which the inductor and resonant capacitor are capable of resonating. The system further includes a control module configured to control the first switching device to switching between the first state and the second state when the resonant receiving circuit is charging a load and a preset condition is satisfied and otherwise, the first switching device is maintained in the first state.

Overvoltage protection system for wireless power transfer systems

Growing community of inventors

Oak Ridge, TN, United States of America

Omer C Onar