IP Library Granted Patent US 10,164,473
Granted Patent B2
US 10,164,473 · App. 15/166,027 · Granted Dec 25, 2018

System and method for device charging

Inventors: Markus Peter Niklaus (Fenin, CH); Michel Omer Anna Ghisleen De Mey (Waterloo, CA)
Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
H02J50/12H02J7/0004H02J7/0027H02J7/0045H02J7/0047H02J7/025H02J50/50H02J50/80H02J50/90H02J7/0042H02J9/005H02J2007/005
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Quick Facts
Patent No.
US 10,164,473
App. No.
15/166,027
Granted
Dec 25, 2018
Kind
B2
Abstract

Aspects of the present disclosure involve a system and method for charging a device. The current disclosure also presents a cradle which can be used as an interface for communicating with external computing systems and power charging systems. In one embodiment, the cradle is used to down convert a high powered signal from a power charging system for use to charge a device such as a wearable. In another embodiment, the cradle is used to communicate with and external computing system for device upgrades and maintenance.

Claims (43)

1. A method, comprising:

a system configured for:

receiving a request for power transfer from a device, wherein the request comprises device information used to obtain a power level for charging the device;

establishing a first radio connection with an external power source based on the request received;

establishing a first induction connection with the power source for wireless power transfer;

maintaining the first radio connection established to monitor power transfer conditions while receiving power on the first induction connection wherein a level of the power received from the first induction connection is greater than the power level for charging the device;

down converting a first portion of the level of the power received with the first portion corresponding to the power level obtained during the request for power transfer, and transferring the down converted first portion over a second induction connection to the device, while still receiving power on the first induction connection; and

using a second portion of the level of the power received for power to operate the system wherein the level of the power received is no less than a sum of the first portion and the second portion.

2. The method of claim 1 , wherein the request for power transfer occurs over a second radio connection between the system and the device.

3. The method of claim 1 , configuring the system to include a cradle wherein the first radio connection is a control link used to negotiate the wireless power transfer between the cradle and the power source.

4. The method of claim 1 , wherein the first induction connection is a loosely coupled resonant induction connection used for the wireless power transfer from the power source to the cradle, and wherein the power transferred to the cradle is greater than the power level for charging the device.

5. The method of claim 1 , configuring the system to include a cradle wherein a third radio connection is established with an external system for transfer of information between the external system and the cradle.

6. The method of claim 1 , wherein the device information includes a device type and the power level for charging the device.

7. The method of claim 3 , wherein the device information includes an indicator of a device type used by the cradle to obtain the power level for charging the device from a storage device.

8. The method of claim 3 , wherein the second portion of the level of the power received from the first induction connection powers the cradle.

9. The method of claim 1 , wherein the down converted first portion is transferred to the device using a plurality of sub-cradles.

10. A system interface for wireless power transfer, comprising:

a processor, the processor configured to:

process a request for power transfer from a device, wherein the request comprises device information used to obtain a power level for charging the device;

at least one radio, the at least one radio configured to:

establish a first radio connection with a power source based on the request received;

a first resonator, the first resonator configured to:

establish a first induction connection with the power source for wireless power transfer;

the at least one radio further configured to:

maintain the first radio connection established to monitor power transfer conditions while receiving a level of power on the first induction connection wherein the level of power that is received from the first induction connection is greater than the power level for charging the device;

a regulator, the regulator configured to:

down convert a first portion of the level of power wherein the first portion corresponds to substantially the power level obtained during the request for power transfer, and to use a second portion of the level of power to power the system interface; and

a second resonator, the second resonator configured to:

transfer the down converted first portion over a second induction connection to the device.

11. The system interface of claim 10 , wherein the request for power transfer occurs over a second radio connection.

12. The system interface of claim 10 , wherein the first radio connection is a control link used to negotiate the wireless power transfer between the power source and the system interface, wherein the system interface is a cradle.

13. The system interface of claim 10 , wherein the system interface includes a cradle and wherein the first induction connection is a loosely coupled resonant induction connection used for the transfer of the level of power from the power source to the cradle.

14. The system interface of claim 10 , wherein the resonant induction connection uses a plurality of resonators.

15. The system interface of claim 10 , wherein the system interface includes a cradle and wherein the second portion of the power received from the first induction connection powers the cradle.

16. The system interface of claim 10 , further includes establishing a third radio connection with an external system, wherein information is received from the external system over the third radio connection.

17. The system interface of claim 16 , wherein the information received from the external system is transmitted to the device.

18. The system interface of claim 17 , wherein the information stored can include a software upgrade.

19. A method, comprising:

configuring a system for:

establishing a radio connection with a power transfer interface for negotiating wireless power transfer with a device;

establishing a resonant induction connection with the power transfer interface and receiving a level of power over the resonant induction connection wherein the level of power is greater than an amount of power to transfer to the device;

maintaining the radio connection established to monitor power transfer conditions while receiving the level of power on the resonant induction connection; and

regulating a first portion of the level of power for use to power the device, and using a second portion of the level of power for powering the system.

Assignments (3)
RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT REEL 041187, FRAME 0295 Recorded Jun 22, 2023
From: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
To: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC; FAIRCHILD SEMICONDUCTOR CORPORATION
Reel/Frame 064151/0203 →
SECURITY INTEREST Recorded Dec 23, 2016
From: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
To: DEUTSCHE BANK AG NEW YORK BRANCH
Reel/Frame 041187/0295 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 26, 2016
From: NIKLAUS, MARKUS PETER; DE MEY, MICHEL OMER ANNA GHISLEEN
To: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Reel/Frame 038732/0007 →
Continuity (2)
Provisional Application 62295293 · Feb 15, 2016
Related Publication 20170237294A1 · Aug 17, 2017