NON-CONTACT TYPE POWER SUPPLY APPARATUS AND NON-CONTACT TYPE POWER SUPPLY METHOD

• US 20150133056A1
• Filed: 11/07/2014
• Published: 05/14/2015
• Est. Priority Date: 11/11/2013
• Status: Active Grant

• Current Assignee: Wit Co., Ltd.
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: KANG, Chang Soo, Kim, Ji Hoon, Han, Hee Sun, Lim, Hyun Keun
• Granted Patent: US 9,769,869 B2
• Time in Patent Office: Days
• US Class Current: 455/41.2
• CPC Class Codes: H02J 50/10 using inductive coupling
• 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: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 76/20 Manipulation of established connections

Abstract

A non-contact type power supply apparatus may include a power unit transmitting power to a power receiving apparatus in a non-contact type manner, a communicating unit communicating with the power receiving apparatus, and a controlling unit terminating communications with the power receiving apparatus in the case in which a communications signal level of the power receiving apparatus transmitted to the communicating unit is equal to or less than a reference signal level.

Claims

1. A non-contact type power supply apparatus comprising:

a power unit configured to contactlessly transmit power to one or more power receiving apparatuses;

a communicating unit configured to communicate with the one or more power receiving apparatuses; and

a controlling unit configured to terminate communications with the one or more power receiving apparatuses in the case in which a communications signal level of the one or more power receiving apparatuses transmitted to the communicating unit is equal to or less than a reference signal level.

2. The non-contact type power supply apparatus of claim 1, wherein the controlling unit stops transmitting the power to the one or more power receiving apparatuses in the case in which the communications are terminated.

3. The non-contact type power supply apparatus of claim 1, wherein the controlling unit stops the communications with one or more of the power receiving apparatuses having a communications signal level, which is equal to or less than the reference signal level.

4. The non-contact type power supply apparatus of claim 1, wherein the communications signal level is a level of an advertisement signal transmitted from the one or more power receiving apparatuses in response to a connection request signal of the communicating unit.

5. The non-contact type power supply apparatus of claim 4, wherein the level of the advertisement signal is received signal strength indication (RSSI) of the advertisement signal.

6. The non-contact type power supply apparatus of claim 1, wherein the power unit transmits a short beacon to detect proximity of the one or more power receiving apparatuses.

7. The non-contact type power supply apparatus of claim 1, wherein the power unit transmits a long beacon to wake up a Bluetooth circuit comprised in each of the one or more power receiving apparatuses.

8. The non-contact type power supply apparatus of claim 1, wherein the communicating unit performs Bluetooth low energy (BLE) communications with a Bluetooth circuit comprised in a corresponding power receiving apparatus.

9. The non-contact type power supply apparatus of claim 1, wherein the controlling unit repeatedly detects the one or more power receiving apparatuses having the communications signal level which is equal to or less than the reference signal level.

10. The non-contact type power supply apparatus of claim 3, wherein the controlling unit controls power transmission to the power receiving apparatuses in order of high to low communication signal levels.

11. A power supply method of transmitting power in a non-contact type manner, the power supply method comprising:

a non-contact type power supply apparatus requesting a connection to one or more power receiving apparatuses;

the non-contact type power supply apparatus receiving an advertisement from the one or more power receiving apparatuses in response to the requested connection; and

the non-contact type power supply apparatus determining a termination of the connection with the one or more power receiving apparatuses by comparing a signal level of the received advertisement and a reference signal level.

12. The non-contact type power supply method of claim 11, further comprising the non-contact type power supply apparatus transmitting a short beacon to detect proximity of the one or more power receiving apparatuses.

13. The non-contact type power supply method of claim 11, further comprising the non-contact type power supply apparatus transmitting a long beacon to wake up a Bluetooth circuit comprised in each of the one or more power receiving apparatuses.

14. The non-contact type power supply method of claim 11, wherein in the determining of the termination of the connection, in the case in which the signal level of the received advertisement is equal to or less than the reference signal level, the connection with a corresponding power receiving apparatus is terminated.

15. The non-contact type power supply method of claim 11, further comprising the non-contact type power supply apparatus transmitting power to the connected one or more power receiving apparatus.

16. The non-contact type power supply method of claim 11, further comprising the non-contact type power supply apparatus transmitting power in order of high to low signal levels among the power receiving apparatuses having the signal level, which is equal to or greater than the reference signal level, and sending advertisements.

17. The non-contact type power supply method of claim 11, wherein in the determining of the termination of the connection, an advertisement signal is repeatedly received from the power receiving apparatuses and a level of the advertisement signal is compared to the reference signal level.

18. The non-contact type power supply apparatus of claim 11, wherein the signal level of the advertisement is received signal strength indication (RSSI) of an advertisement signal.