Witricity Corporation

Daniel Bronson

Morris P Kesler

Katherine L Hall

Andre B Kurs

Herbert Toby Lou

Ron Fiorello

Kylee Devro Sealy

Noam Katz

Conor Joseph Rochford

Aaron Gilchrist

Matthew Dillon

Bryan T Sharp

Benjamin K Sampson

Methods and apparatus to control load power in a wireless power transfer system having one or more power receiving devices and one or more power transmitting sources. In embodiments, device temperature, current level, and/or other information can be used to control power to a load energized by a device.

Wireless power transmission system having power control

Methods and apparatus for a body diode conduction sensor configured for coupling to a switching element. In embodiments, the sensor comprises first and second voltage divider networks coupled to a voltage source and a diode coupled to the switching element and to the first voltage divider network, wherein the diode is conductive at times corresponding to body diode conduction of the switching element decreasing the DC average voltage at the output node of the first voltage divider network. A differential output voltage can be coupled to the first and second voltage divider networks with an output signal corresponding to a time of the body diode conduction of the switching element.

Diode conduction sensor

A current sensing system and method for wireless energy transfer may include a printed circuit board, wherein the printed circuit board may include at least a first layer, a second layer, and a third layer. A loop of conductive material may be included, wherein the loop of conductive material may include a diameter Don the second layer. A coil of conductive material may be included, wherein the coil of conductive material may have at least 2 turns, wherein a majority of the coil of conductive material may occupy the first layer and the third layer with an outer diameter Dand an inner diameter D, connected through each of the first, second, and third layers. The loop of conductive material may be coupled to the coil of conductive material.

Wireless energy transfer for mobile device applications

Growing community of inventors

Nibley, UT, United States of America

Daniel Bronson