METHODS FOR INCREASING DATA COMMUNICATION BANDWIDTH BETWEEN WIRELESS POWER DEVICES

• US 20180131412A1
• Filed: 11/09/2017
• Published: 05/10/2018
• Est. Priority Date: 11/10/2016
• Status: Abandoned Application

• Current Assignee: Integrated Device Technology Incorporated (Renesas Electronics Corporation)
• Original Assignee: Integrated Device Technology Incorporated (Renesas Electronics Corporation)
• Inventors: WILSON, David, MEHAS, Gustavo, MARTCHOVSKY, Detelin
• Application Number:
  US15/808,684
• Publication Number:
  US 20180131412A1
• Time in Patent Office: Days
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H04B 5/22 Capacitive coupling
• CPC Class Codes: H04B 5/266 One coil at each side, e.g. with primary and secondary coils
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

A wireless power system according to some embodiments includes a wireless power receiver, the wireless power receiver including a receiver coil, a communications device incorporated with the receiver coil, a receiver transceiver coupled to the receiver communications device, and a receiver processor coupled to the receiver transceiver; and a wireless power transmitter, the wireless power transmitter including a transmitter coil, a transmitter communications device incorporated with the transmitter coil, a transmitter transceiver coupled to the transmitter communications device, and a transmitter processor coupled to the transmitter transceiver, wherein communications data is transmitted between the receiver communications device and the transmitter communications device.

Claims

1. A wireless power receiver, comprising:

a receiver coil;

a communications device incorporated with the receiver coil;

a transceiver coupled to the communications device; and

a processor coupled to the transceiver.

2. The wireless power receiver of claim 1, wherein the communications device is the receiver coil and communications data is provided through phase modulation.

3. The wireless power receiver of claim 1, wherein the communications device is the receiver coil and communications data is provided through orthogonal frequency division multiplexing using carrier frequencies unrelated to the transmission of power.

4. The wireless power receiver of claim 1, wherein the communications device is the receiver coil and communications data is provided through intentional discontinuities of the power signal.

5. The wireless power receiver of claim 1, wherein the communications device is the receiver coil and communications data is provided through frequency modulation.

6. The wireless power receiver of claim 1, wherein the communications device is the receiver coil and communications data is provided through combining voltage and current magnitude and phase information.

7. The wireless power receiver of claim 1, wherein communications data is provided through capacitive coupling.

8. The wireless power receiver of claim 1, wherein the communications device is a secondary coil positioned center to the receiver coil and oriented orthogonal to the receiver coil.

9. The wireless power receiver of claim 1, wherein the communications device is a dipole antenna positioned at the center of the receiver coil.

10. The wireless power receiver of claim 1, wherein the communications device is an ultrasonic or acoustic transducer.

11. The wireless power receiver of claim 1, wherein the communications device is a pressure transducer.

12. The wireless power receiver of claim 1, wherein the communications device is a photodiode.

13. A wireless power system, comprising:

a wireless power receiver, the wireless power receiver including a receiver coil, a receiver communications device incorporated with the receiver coil, a receiver transceiver coupled to the receiver communications device, and a receiver processor coupled to the receiver transceiver; and

a wireless power transmitter, the wireless power transmitter including a transmitter coil, a transmitter communications device incorporated with the transmitter coil, a transmitter transceiver coupled to the transmitter communications device, and a transmitter processor coupled to the transmitter transceiver,

wherein communications data is transmitted between the receiver communications device and the transmitter communications device.

14. The system of claim 13, wherein the receiver communication device and the transmitter communications device are aligned to exchange data when the receiver coil is aligned with the transmitter coil.

15. The system of claim 13, wherein the receiver communications device and the transmitter communications device are at least one of a set consisting of the receiver and transmit coils, capacitive couplers, data coils, data coils positioned orthogonally to the receiver and transmit coils, dipole antennas, pressure transducers, and photodiodes.

16. A wireless power transmitter, comprising:

a transmitter coil;

a transmitter communication device incorporated with the transmitter coil;

a transmitter transceiver coupled to the transmitter communication device; and

a transmitter processor coupled to the transmitter receiver.

17. The transmitter of claim 16, wherein the transmitter communication device is aligned with a receiver communication device when the transmitter coil is aligned with a receiver coil.

18. The transmitter of claim 16, wherein the transmitter communication devices is at least one of a set consisting of the receiver and transmit coils, capacitive couplers, data coils, data coils positioned orthogonally to the receiver and transmit coils, dipole antennas, pressure transducers, and photodiodes