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

• US 20150137614A1
• Filed: 11/17/2014
• Published: 05/21/2015
• Est. Priority Date: 11/20/2013
• Status: Active Grant

• Current Assignee: Wit Co., Ltd.
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: Kang, Chang Soo, Oh, Soon Tack, Park, Chul Gyun, Sung, Jae Suk, Han, Hee Sun
• Granted Patent: US 10,170,933 B2
• Time in Patent Office: Days
• US Class Current: 307/104
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H02J 50/60 responsive to the presence of foreign objects, e.g. detection of living beings
• 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 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

A non-contact type power supplying apparatus may be capable of detecting another power receiving apparatus even during the charging. The non-contact type power supplying apparatus may include: a first output unit outputting a detection signal detecting a power receiving apparatus; and a second output unit outputting a wake-up signal waking-up a communications circuit of the detected power receiving apparatus when the power receiving apparatus is detected, thereby making it possible to supply power to the detected power receiving apparatus using a non-contact type method.

Claims

1. A non-contact type power supplying apparatus supplying power to a detected power receiving apparatus using a non-contact type method, the non-contact type power supplying apparatus comprising:

a first output unit outputting a detection signal detecting the power receiving apparatus; and

a second output unit outputting a wake-up signal waking-up a communications circuit of the detected power receiving apparatus when the power receiving apparatus is detected.

2. The non-contact type power supplying apparatus of claim 1, wherein the first output unit continuously outputs the detection signal after detecting the power receiving apparatus.

3. The non-contact type power supplying apparatus of claim 1, wherein the detection signal is a short beacon having a predetermined interval.

4. The non-contact type power supplying apparatus of claim 1, wherein the wake-up signal is a long beacon having a predetermined interval.

5. The non-contact type power supplying apparatus of claim 1, wherein the first output unit includes:

a first power amplifying unit amplifying input power to generate the detection signal according to a oscillating signal;

a first oscillator providing the oscillating signal to the first power amplifying unit; and

a first power transmitting coil outputting the detection signal.

6. The non-contact type power supplying apparatus of claim 1, wherein the second output unit includes:

a second power amplifying unit amplifying input power to generate the wake-up signal according to a oscillating signal;

a second oscillator providing the oscillating signal to the second power amplifying unit; and

a second power transmitting coil outputting the wake-up signal.

7. The non-contact type power supplying apparatus of claim 1, further comprising:

a power supplying unit supplying power to the first and second output units;

a detecting unit detecting changes in impedance of the first output unit;

a controlling unit controlling an output of the wake-up signal of the second output unit according to a detection result of the detecting unit; and

a communicating unit communicating with the woken-up communications circuit of the power receiving apparatus.

8. A non-contact type power supplying method supplying power to a detected power receiving apparatus using a non-contact type method, the non-contact type power supplying method comprising:

outputting a detection signal detecting a power receiving apparatus;

continuously outputting the detection signal when the power receiving apparatus is detected and outputting a wake-up signal waking-up a communications circuit of the detected power receiving apparatus; and

supplying power to the detected power receiving apparatus in the non-contact manner.

9. The non-contact type power supplying method of claim 8, wherein the detection signal is a short beacon having a predetermined interval.

10. The non-contact type power supplying method of claim 8, wherein the wake-up signal is a long beacon having a predetermined interval.

11. The non-contact type power supplying method of claim 8, wherein in the outputting of the wake-up signal, after the power receiving apparatus is detected according to changes in impedance of a power transmitting coil outputting the detection signal, the wake-up signal is output.

12. The non-contact type power supplying method of claim 8, wherein in the supplying of the power, after communication with the woken-up communications circuit of the power receiving apparatus is performed, necessary power is supplied.