# US 2021/0242722 A1 · Smart Wireless Power/Data Transfer System

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- Number: US 2021/0242722 A1
- Document ID: US20210242722A1
- Status: Published application
- Kind: A1
- Application number: 17/301,967
- Filed: 2021-04-20
- Published: 2021-08-05
- Earliest claimed: 2019-01-04
- Assignees: SWR Technology Inc.
- Applicants: SWR Technology Inc.
- Inventors: Wenching Hsiao; Shengming Shan
- Web page: https://patentgrep.com/patent/US20210242722A1

## CPC

- H02J 50/12: of the resonant type
- H02J 50/60: responsive to the presence of foreign objects, e.g. detection of living beings
- H02J 50/80: involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
- H04B 5/79: for data transfer in combination with power transfer
- H04B 5/266: {One coil at each side, e.g. with primary and secondary coils}
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 90/14: Plug-in electric vehicles
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H04B: TRANSMISSION
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A system for providing electrical power to a remote device through wireless transmission is provided. The system includes a power transmitting data unit (PTDU), at least one power receiving data unit (PRDU) and at least one power throttling circuit. The PTDU receives electrical power from a power source. The PRDU is connected to a load device. The PRDU includes a resonator and a power conversion circuit. The resonator receives electromagnetic waves from the PTDU and converts the electromagnetic waves into the electrical power. The power conversion circuit provides target power to the load device. The power throttling circuit determines how much electrical power from the resonator needs to be transmitted to the power conversion circuit based on the power requirement of the load device, wherein the electrical power required for the load device is regarded as the target power.

## Claims

### Claim 1

A system for providing electrical power to a load device through wireless transmission, comprising:
a power transmitting data unit (PTDU) receiving electrical power from a power source;
at least one power receiving data unit (PRDU), connected to the load device,
wherein the PRDU further comprises:
a resonator, receiving electromagnetic waves from the PTDU and converting the electromagnetic waves into the electrical power; and
a power conversion circuit, providing a target power to the load device, wherein the electrical power required for the load device is regarded as the target power; and
at least one power throttling circuit, determining how much electrical power from the resonator needs to be transmitted to the power conversion circuit based on a power requirement of the load device.

### Claim 2 (depends on 1)

The system of claim 1, wherein the power throttling circuit is allocated in the PRDU and the power throttling circuit is coupled to the resonator and the power conversion circuit.

### Claim 3 (depends on 1)

The system of claim 1, further comprising:
at least one repeater unit (RU), receiving the electromagnetic waves from the PTDU and transmitting the electromagnetic waves to the PRDU.

### Claim 4 (depends on 3)

The system of claim 3, wherein the power throttling circuit is allocated in the RU.

### Claim 5 (depends on 1)

The system of claim 1, further comprising:
a remote power-profile artificial-intelligence (AI) engine, storing first power profiles, wherein the first power profiles stored by the remote power-profile AI engine are shared with a power-profile AI engine of the PTDU and second power profiles obtained by the power-profile AI engine of the PTDU are shared with the remote power-profile AI engine.

### Claim 6 (depends on 5)

The system of claim 5, wherein the first power profiles and the second power profiles comprise setup information for the load device, the PRDU and the PTDU, identification data for the load device, past power transfer information, a duty cycle, a driving voltage, a driving frequency, and past usage data.

### Claim 7 (depends on 1)

The system of claim 1, further comprising:
a remote foreign object detection (FOD) AI engine, recognizing foreign objects, wherein information related to the recognition or detection of foreign objects obtained by the remote FOD AI engine are shared with a FOD AI engine of the PTDU and information related to the recognition or detection of foreign objects obtained by the PTDU are shared with the remote FOD AI engine and the PTDU.

### Claim 8 (depends on 7)

The system of claim 7, wherein the foreign objects are classified into different categories based on a strength of a communication signal, impact on an impedance in emission of the electromagnetic waves, impact on efficiency over frequency, impact on efficiency over time, and/or impact on a waveform at a resonator over time.

### Claim 9 (depends on 1)

The system of claim 1, wherein the PTDU comprises a guidance unit, wherein the guidance unit is configured to use environment information received by the PTDU to calculate and guide the PRDU to a best positioning relative to the PTDU.

### Claim 10

A method for providing electrical power to a load device through wireless transmission, wherein the method is applied to a system which comprises a power transmitting data unit (PTDU), at least one power receiving data unit (PRDU) and at least one power throttling circuit, comprising:
receiving by a resonator of the PRDU, the electromagnetic waves from the PTDU and converting the electromagnetic waves into electrical power;
determining, by the power throttling circuit, how much electrical power from the resonator needs to be transmitted to a power conversion circuit of the PRDU based on a power requirement of the load device, wherein the electrical power required for the load device is regarded as a target power; and
providing, by the power conversion circuit, the target power to the load device.

### Claim 11 (depends on 10)

The method of claim 10, wherein the power throttling circuit is allocated in the PRDU.

### Claim 12 (depends on 10)

The method of claim 10, wherein the system further comprises at least one repeater unit (RU), wherein the RU receives the electromagnetic waves from the PTDU and transmits the electromagnetic waves to the PRDU.

### Claim 13 (depends on 12)

The method of claim 12, wherein the power throttling circuit is allocated in the RU.

### Claim 14 (depends on 10)

The method of claim 10, wherein the system further comprises a remote power-profile artificial-intelligence (AI) engine, wherein the remote power-profile AI engine stores first power profiles, wherein the first power profiles stored by the remote power-profile AI engine are shared with a power-profile AI engine of the PTDU and second power profiles obtained by the power-profile AI engine of the PTDU are shared with the remote power-profile AI.

### Claim 15 (depends on 14)

The method of claim 14, wherein the first power profiles and the second power profiles comprise setup information for the load device, the PRDU and the PTDU, identification data for the load device, past power transfer information, a duty cycle, a driving voltage, a driving frequency, and past usage data.

### Claim 16 (depends on 10)

The method of claim 10, wherein the system further comprises a remote foreign object detection (FOD) AI engine, wherein the remote FOD AI engine recognizes foreign objects, wherein information related to the recognition or detection of foreign objects obtained by the remote FOD AI engine are shared with a FOD AI engine of the PTDU and information related to the recognition or detection of foreign objects obtained by the FOD AI engine of the PTDU are shared with the remote FOD AI engine.

### Claim 17 (depends on 16)

The method of claim 16, wherein the foreign objects are classified into different categories based on a strength of a communication signal, impact on an impedance in emission of the electromagnetic waves, impact on efficiency over frequency, impact on efficiency over time, and/or impact on a waveform at a resonator over time.

### Claim 18 (depends on 10)

The method of claim 10, wherein the PTDU comprises a guidance unit, wherein the guidance unit is configured to use environment information received by the PTDU to calculate and guide the PRDU to a best positioning relative to the PTDU.