Apple inc. (20250007332). Wireless Power System With Charging Alerts

Wireless Power System With Charging Alerts

Organization Name

apple inc.

Inventor(s)

Arash Mehrabi of Menlo Park CA (US)

Dmitry Berdnikov of San Jose CA (US)

Wireless Power System With Charging Alerts

This abstract first appeared for US patent application 20250007332 titled 'Wireless Power System With Charging Alerts

Original Abstract Submitted

a wireless power system has first and second electronic devices. the first electronic device may receive power from an alternating-current-to-direct-current power converter. a magnetic sensor and/or other sensing circuitry may detect when a second electronic device is attached to the first electronic device. in response to detecting device attachment and receipt of power from the power converter, the first electronic device sends test wireless power signals to the second electronic device. during reception of the test signals, the second electronic device adjusts a ballast load so that output current from a rectifier in the second electronic device flows through the ballast load. the output of the rectifier is measured and compared to a threshold voltage. if the rectifier output voltage exceeds the threshold, the first electronic device is directed to alert the user that wireless charging of the second electronic device is commencing.