Apple Inc.

Michael Scott Eckert

Saining Ren

Arunim Kumar

Lawrence Bernardo Dela Cruz

Rex Pius Huang

Ron Rafer Floresca

Mikhal S De Jesus

Atul A Salvekar

Selestino Langi Rodan

Daniel Lorenz Huber

An inductive power transmitter and an inductive power receiver include communication circuitry to communicate using modulation of the power transfer field. The inductive power transmitter or the inductive power receiver includes monitoring circuitry to determine a communication fault condition. If a communication fault condition is determined, a converter of the inductive power transmitter or inductive power receiver can adjust a control parameter.

Wireless power transfer

An inductive power receiving device configured to: supply power received with a power receiving coil to a load in a first mode; determine whether a converter voltage exceeds a threshold voltage; in response to the determining the converter voltage exceeds the threshold voltage after sending a charging mode request, switch to supplying power received with the power receiving coil to the load in a second mode; and in response to determining the converter voltage coil exceeds the threshold voltage before sending the charging mode request is sent, prevent at least a portion of the power received with the power receiving coil from reaching the load. An inductive power transmitting device configured to provide an alternating current voltage to a power transmitting coil and gradually increase the voltage after receiving a charging mode request and stop gradually increasing the voltage once an inductive power receiving device changes modes.

Inductive power transfer system

Growing community of inventors

Auckland, New Zealand

Michael Scott Eckert