US Patent Application 18198858. DEVICE AND METHOD FOR WIRELESS POWER TRANSFER simplified abstract
Contents
DEVICE AND METHOD FOR WIRELESS POWER TRANSFER
Organization Name
Inventor(s)
WILHELMUS GERARDUS MARIA Ettes of LEEUWARDEN (NL)
EDDY GERRIT Veltman of STEENBERGEN (NL)
HENRICUS ANTONIUS GERARDUS Van Vugt of HELDMOND (NL)
DEVICE AND METHOD FOR WIRELESS POWER TRANSFER - A simplified explanation of the abstract
This abstract first appeared for US patent application 18198858 titled 'DEVICE AND METHOD FOR WIRELESS POWER TRANSFER
Simplified Explanation
The patent application describes a power transfer device that uses an electromagnetic power transfer signal to transfer power between a transmitter and a receiver.
- The power transfer device has a repeating time frame that includes a power transfer time interval and an object detection time interval.
- A power transfer circuit includes a power transfer coil that receives or generates the power transfer signal during the power transfer time intervals.
- The device also has a communicator that uses an electromagnetic communication signal to communicate with another device.
- A communication resonance circuit includes a communication antenna for transmitting or receiving the communication signal.
- During communication, the communication resonance circuit provides a resonance at a first resonance frequency to the communicator.
- A controller adapts the communication resonance circuit to not provide the resonance at the first resonance frequency to the communicator during object detection time intervals.
- This approach improves the detection of resonance objects, such as smart cards like NFC cards.
Original Abstract Submitted
A power transfer device is a power transmitter () or a power receiver () conducting power transfer using an electromagnetic power transfer signal employing a repeating time frame comprising a power transfer time interval and an object detection time interval. A power transfer circuit () comprises a power transfer coil () receiving or generating the power transfer signal during the power transfer time intervals. A communicator () communicates with the other device via an electromagnetic communication signal. A communication resonance circuit () comprises a communication antenna () for transmitting or receiving the electromagnetic communication signal. During the communication, the communication resonance circuit () provides a resonance at a first resonance frequency to the communicator (). A controller () adapts the communication resonance circuit to not provide the resonance at the first resonance frequency to the communicator during object detection time intervals. The approach may provide improved detection of resonance objects, such as smart cards (e.g. NFC cards).
