Apple Inc.

Srinivasa V Thirumalai Ananthan Pillai

Timothy J Rasmussen

Zaid A AbuKhalaf

Jeffrey Douglas Louis

Paul Joseph Hack

Michael A Cretella

Juan Carlos Pastrana

Cortland S Tolva

Daniel Ye

Marco Rondinini

Juan Carls Pastrana

A wireless power transmission system comprising a wireless power transmitting device and a wireless power receiving device. The wireless power receiving device is configured to enter a cloak state when a temporary pause in power transfer is desired. The wireless power receiving device may allow or deny a communication data stream with the wireless power transmitting device during the cloak state. The wireless power receiving device may request a hot start power transfer phase with the wireless power transmitting device after the cloak state. The wireless power transmitting device may or revert (reset) to a default operating state in the event that a control error packet is received during the cloak state.

Wireless power transfer system, methods or devices

An electronic device can include a wireless power transfer coil, an inverter having an input coupled to an input power source and an output coupled to the wireless power transfer coil, control circuitry that operates the inverter to deliver power from the input power source to a wireless power receiver coupled to the wireless power transfer coil, communication circuitry that allows communication with the wireless power receiver, and an auxiliary cooler and associated control circuitry that operates the auxiliary cooler, responsive to one or more temperature measurements, to transfer heat from the electronic device to an ambient environment.

Wireless charging performance improvements

A wireless power system has a wireless power transmitting device such as a charging puck and a wireless power receiving device such as a battery-operated device. The charging puck may be connected to a plug via a cable. The plug may include a boot and a connector. The boot may house a printed circuit board that is positioned closer to one of the boot housing walls.

Wireless power system housing

A wireless power system may have a wireless power transmitting device and wireless power receiving devices. The wireless power transmitting device has wireless power transmitting circuitry with coils to transmit wireless power to wireless power receiving devices. The wireless power receiving devices are placed on the wireless power transmitting device in an order. Batteries in the wireless power receiving devices are charged based at least partly on the order. Power allocation is based on utilization factor information such as information on a power draw associated with each of the power receiving devices. Measurement circuitry in the wireless power transmitting device is used to gather impedance images from the coils. Changes in the impedance images are used to temporarily halt power transmission. Power transmission is resumed depending on whether in-band communications are lost or are maintained.

Wireless power system with device priority

Growing community of inventors

Santa Clara, CA, United States of America

Srinivasa V Thirumalai Ananthan Pillai