18567381. WIRELESS POWER TRANSFER (KONINKLIJKE PHILIPS N.V.)
WIRELESS POWER TRANSFER
Organization Name
Inventor(s)
Johannes Wilhelmus Draak of Horst NL
Wilhelmus Gerardus Maria Ettes of Leeuwarden NL
Pascal Leonard Maria Lebens of Eindhoven NL
Klaas Jakob Lulofs of Veldhoven NL
WIRELESS POWER TRANSFER
This abstract first appeared for US patent application 18567381 titled 'WIRELESS POWER TRANSFER
Original Abstract Submitted
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 first mode which comprises operating a power control loop to control the power transfer signal in response to power control error messages received from the power receiver (). A second controller () controls the parameter of the drive signal in accordance with a second mode which comprises setting the parameter of the drive signal in response to at least one power transfer signal setpoint received from the power receiver (). A circuit () selects between the first mode of operation and the second mode of operation in response to a power transfer control mode request received from the power receiver () and a timing circuit () varies a timing parameter for the communication time intervals between the two modes of operation.