A power transmitter () provides power to a power receiver () via a power transfer signal generated by a drive signal fed to a transmitter coil (). A first controller () of the power transmitter () controls a parameter of the drive signal in accordance with...

A power transmitter () provides power to a power receiver () via an inductive power transfer signal which is also used by the power receiver () for communication by load modulation. The power transmitter () comprises a load detector () detecting load varia...

According to some implementations, a wireless power transmitter and a wireless power receiver of a wireless power system are disclosed. According to one aspect, the wireless power transmitter includes a wireless power transmitter circuit configured to gene...

A power receiver () communicates to a power transmitter () using load modulation data symbols modulated by a chip sequence with a chip sequence being divided into load time intervals with different modulation loads. The power transmitter () comprises a rec...

A power transmitter () comprises a driver () generating a drive signal for a transmitter coil to generate a power transfer signal during a power transfer time interval and an electromagnetic test signal during a foreign object detection time interval. A se...