Wireless power transmission apparatus that is turned off in standby state and electronic apparatus including wireless power transmission apparatus

Patent metadata

Field	Value
Publication number	US-10714978-B2
Application number	US-201815968417-A
Country	US
Kind code	B2
Filing date	May 1, 2018
Priority date	May 2, 2017
Publication date	Jul 14, 2020
Grant date	Jul 14, 2020

Abstract

An electronic apparatus is disclosed. The electronic apparatus includes a wireless power transmission module that wirelessly transmits power to a wireless power reception apparatus that is configured to supply power to a drive apparatus for an operation of an electronic apparatus, a first signal reception module that receives a control signal from a remote control apparatus, a first power supply module that supplies power to the first signal reception module, and a first control module configured to control the first power supply module. When the first signal reception module receives an off signal, the first control module controls the first power supply module such that power that is supplied to the wireless power transmission module is blocked.

First claim

What is claimed is:

1. A wireless system comprising:
a display device comprising a wireless power reception apparatus;
a remote control apparatus; and
a wireless power transmission apparatus,
wherein the wireless power transmission apparatus comprises:
a wireless power transmission module configured to wirelessly transmit power to the wireless power reception apparatus, wherein the power is used for an operation of the display device;
a first power supply module configured to supply power to the wireless power transmission module;
a first signal reception module; and
a first control module configured to control the first power supply module such that supply of power to the wireless power transmission module is blocked when the first signal reception module receives a power off signal from the remote control apparatus.

2. The wireless system of claim 1 , wherein the display device further comprises:
a second signal reception module;
a second power supply module configured to supply the power wirelessly received via the wireless power reception apparatus;
a driving apparatus configured to use the power from the second power supply module for the operation of the display device; and
a second control module configured to control the second power supply module such that supply of the power to the driving apparatus is blocked, when the second signal reception module receives the power off signal from the remote control apparatus.

3. The wireless system of claim 2 , wherein the second control module is further configured to:
control the second power supply module to supply the power to the driving apparatus when the second signal reception module receives a power on signal from the remote control apparatus.

4. The wireless system of claim 1 , wherein the first control module comprises an integrated circuit (IC) configured to receive an output of the wireless power transmission module.

5. The wireless system of claim 4 , wherein the integrated circuit is configured to receive the output, of which a voltage value exceeds a predetermined value, from the wireless power transmission module when the first signal reception module receives the power off signal from the remote control apparatus.

6. The wireless system of claim 5 , wherein the predetermined value corresponds to a voltage applied to the integrated circuit by the first power supply module.

7. The wireless system of claim 5 , wherein the integrated circuit comprises a comparator configured to:
output a signal of a high level when the output of the wireless power transmission module is not greater than the predetermined value; or
output a signal of a low level when the output of the wireless power transmission module exceeds the predetermined value.

8. The wireless system of claim 7 , wherein the integrated circuit further comprises:
a first NOT gate configured to receive the output of the wireless power transmission module;
an AND gate configured to receive an output of the first NOT gate and to receive an output of the comparator;
a second NOT gate configured to receive the output of the comparator; and
an S-R latch circuit configured to receive an output of the AND gate as an “S” input and to receive an output of the second NOT gate as an “R” input.

9. The wireless system of claim 1 , wherein the first control module comprises a micro controller unit (MCU) configured to receive an output of the first signal reception module.

10. The wireless system of claim 9 , wherein the MCU is configured to:
receive a changed signal from the first signal reception module when the first signal reception module receives the power off signal from the remote control apparatus, and
control the first power supply module such that the supply of the power to the wireless power transmission module is blocked.

11. The wireless system of claim 1 , wherein the first control module is further configured to:
control the first power supply module to supply the power to the wireless power transmission module when the first signal reception module receives a power on signal from the remote control apparatus.

12. A wireless power transmission apparatus comprising:
a wireless power transmission module configured to wirelessly transmit power;
a power supply module configured to supply power to the wireless power transmission module;
a signal reception module; and
a control module configured to control the power supply module such that supply of power to the wireless power transmission module is blocked when the signal reception module receives a power off signal from a remote control apparatus.

13. The wireless power transmission apparatus of claim 12 , wherein the control module comprises an integrated circuit (IC) configured to receive an output of the wireless power transmission module.

14. The wireless power transmission apparatus of claim 13 , wherein the integrated circuit is configured to receive the output, of which a voltage value exceeds a predetermined value, from the wireless power transmission module when the signal reception module receives the power off signal from the remote control apparatus.

15. The wireless power transmission apparatus of claim 14 , wherein the predetermined value corresponds to a voltage applied to the integrated circuit by the power supply module.

16. The wireless power transmission apparatus of claim 14 , wherein the integrated circuit comprises a comparator configured to:
output a signal of a high level when the output of the wireless power transmission module is not greater than the predetermined value; or
output a signal of a low level when the output of the wireless power transmission module exceeds the predetermined value.

17. The wireless power transmission apparatus of claim 16 , wherein the integrated circuit further comprises:
a first NOT gate configured to receive the output of the wireless power transmission module;
an AND gate configured to receive an output of the first NOT gate and to receive an output of the comparator;
a second NOT gate configured to receive the output of the comparator; and
an S-R latch circuit configured to receive an output of the AND gate as an “S” input and to receive an output of the second NOT gate as an “R” input.

18. The wireless power transmission apparatus of claim 12 , wherein the control module comprises a micro controller unit (MCU) configured to receive an output of the signal reception module.

19. The wireless power transmission apparatus of claim 18 , wherein the MCU is configured to:
receive a changed signal from the signal reception module when the signal reception module receives the power off signal from the remote control apparatus, and control the power supply module such that the supply of the power to the wireless power transmission module is blocked.

20. The wireless power transmission apparatus of claim 12 , wherein the control module is further configured to:
control the power supply module to supply the power to the wireless power transmission module when the signal reception module receives a power on signal from the remote control apparatus.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Choi Shin Wook
• Kang Jeong Il
• Jang Du Hee
• Woo Seong Hoon

Classifications

• Y04S40/126

  using wireless data transmission · CPC title

• Y02E60/00

  Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation · CPC title

• Y02B90/20

  Smart grids as enabling technology in buildings sector (smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00) · CPC title

• H02J50/12 Primary

  of the resonant type · CPC title

• H02J50/80

  involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices · CPC title