# US 2013/0154560 A1 · Battery with integrated wireless power receiver and/or rfid

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- Number: US 2013/0154560 A1
- Document ID: US20130154560A1
- Status: Published application
- Kind: A1
- Application number: 13/766,995
- Filed: 2013-02-14
- Published: 2013-06-20
- Earliest claimed: 2009-11-30
- Assignees: Broadcom Corporation
- Inventors: John Walley; Jeyhan Karaoguz; Ahmadreza Rofougaran; Nambirajan Seshadri; Reinier Hendricus Maria Van Der Lee
- Web page: https://patentgrep.com/patent/US20130154560A1

## CPC

- H02J 7/485: {with provisions for charging different types of batteries}
- H01M 10/44: Methods for charging or discharging (circuits for charging H02J7/00)
- H02J 7/44: between battery management systems and power sources
- H02J 7/70: characterised by the mechanical construction
- H02J 50/10: using inductive coupling
- H02J 50/12: of the resonant type
- H02J 50/20: using microwaves or radio frequency waves
- H02J 50/40: using two or more transmitting or receiving devices (H02J50/50 takes precedence)
- H02J 50/80: involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
- H02J 50/90: involving detection or optimisation of position, e.g. alignment
- H04B 1/40: Circuits
- H04B 5/79: for data transfer in combination with power transfer
- H04W 76/10: Connection setup
- Y02E 60/10: Energy storage using batteries
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H04B: TRANSMISSION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A battery includes one or more rechargeable cells, a wireless power coil, a battery charger circuit, and may further include an RFID module. The wireless power coil is operable to generate an AC voltage from a wireless power electromagnetic field. The battery charger circuit is operable to generate a battery charge voltage from the AC voltage in accordance with a battery charge control signal and, when enabled, to charge the one or more rechargeable cells via the battery charge voltage. If the battery further includes the RFID module, it is operable to generate the battery charge control signal and communicate with a wireless power transmitter device.

## Claims

### Claim 1

A device comprising:
wireless power receive circuitry to generate power from a received wireless power signal;
a first wireless power transceiver configured to communicate, via a control channel, with a second wireless power transceiver included in a wireless power transmission unit;
a processing module coupled to the wireless power receive circuitry and the first wireless power transceiver, the processing module configured to:
identify a control channel protocol usable by the second wireless power transceiver; and
control the first wireless power transceiver to use the control channel protocol.

### Claim 2 (depends on 1)

The device of claim 1, further comprising:
the processing module further configured to select the control channel protocol from among a plurality of control channel protocols usable by the first wireless power transceiver.

### Claim 3 (depends on 1)

The device of claim 1, further comprising:
the processing module further configured to select the control channel protocol based on a beacon signal.

### Claim 4 (depends on 1)

The device of claim 1, further comprising:
the processing module further configured to select the control channel protocol based on a setup communication received using a default control channel protocol.

### Claim 5 (depends on 1)

The device of claim 1, further comprising:
the processing module further configured to select the control channel protocol based on scanning a frequency spectrum.

### Claim 6 (depends on 1)

The device of claim 1, further comprising:
the processing module further configured to select the control channel protocol based on trial and error using known control channel protocols.

### Claim 7 (depends on 1)

The device of claim 1, further comprising:
the first wireless transceiver configured to transmit, via the control channel, control data indicating power transmission parameters to be used by the wireless power transmission unit.

### Claim 8 (depends on 1)

The device of claim 1, further comprising:
a battery coupled to an output of the wireless power receive circuit.

### Claim 9 (depends on 1)

The device of claim 1, further comprising:
a battery coupled to an output of the wireless power receive circuit.

### Claim 10

A wireless charging system including a wireless power receiving unit, the wireless power receiving unit comprising:
a first wireless power transceiver to receive and transmit data related to wireless transmission parameters over a control channel;
wireless power receive circuitry to generate power from a received wireless power signal;
a first processing module coupled to the first wireless power transceiver and the wireless power receive circuitry; and
the first wireless power transceiver configurable, under control of the first processing module, to communicate with a second wireless power transceiver using multiple different control channel protocols.

### Claim 11 (depends on 10)

The wireless charging system of claim 10, further comprising a wireless power transmission unit, the wireless power transmission unit comprising:
a second wireless power transceiver;
power transmission circuitry; and
a second processing module coupled to the second wireless power transceiver and the power transmission circuitry, the processing module configured to control power transmissions based on communications received via the second wireless power transceiver.

### Claim 12 (depends on 11)

The wireless charging system of claim 11, the first processing module further configured to:
identify a control channel protocol usable by the second wireless power transceiver; and
control the first wireless power transceiver to use the control channel protocol.

### Claim 13 (depends on 12)

The wireless charging system of claim 12, the first processing module further configured to select the control channel protocol based on at least one of the following:
a setup communication received using a default control channel protocol;
a beacon signal;
scanning a frequency spectrum;
trial and error using known control channel protocols; and
information obtained from an RFID tag.

### Claim 14 (depends on 10)

The wireless charging system of claim 10, further comprising:
the first wireless power transceiver configured to transmit, via the control channel, control data indicating power transmission parameters to be used by a wireless power transmission unit.

### Claim 15 (depends on 10)

The wireless charging system of claim 10, further comprising:
the first wireless power transceiver configurable to communicate with a plurality of other wireless power transceivers using a plurality of different control channel protocols.

### Claim 16 (depends on 10)

The wireless charging system of claim 10, wherein the wireless power receiving unit further comprising:
a battery coupled to an output of the wireless power receive circuitry.

### Claim 17 (depends on 10)

The wireless charging system of claim 10, wherein:
the second processing module is configured to control power transmission based on battery charging parameters associated with the wireless power receiving unit.

### Claim 18

A wireless charging device comprising:
an RFID circuit;
a first wireless power transceiver to receive and transmit data related to wireless transmission parameters over a control channel;
wireless power receive circuitry to generate power from a received wireless power signal;
a processing module coupled to the first wireless power transceiver and the wireless power receive circuitry; and
the first wireless power transceiver configurable, under control of the first processing module, to communicate with a second wireless power transceiver using multiple different control channel protocols.

### Claim 19 (depends on 18)

The wireless charging device of claim 18, wherein the first processing module further configured to:
identify a control channel protocol usable by the second wireless power transceiver; and
control the first wireless power transceiver to use the control channel protocol.

### Claim 20 (depends on 18)

The wireless charging device of claim 18, wherein the processing module configures the first wireless power transceiver to communicate with a plurality of other wireless power transceivers using a plurality of different control channel protocols.