Wireless power transmitter and control method thereof
First Claim
Patent Images
1. A wireless power transmitter, comprising:
- a power supply;
a power transmission unit configured to wirelessly transmit power for charging a wireless power receiver, by using a current applied from the power supply;
a communication module comprising a plurality of communication sub-modules sharing a first coil, wherein each of the plurality of communication sub-modules is associated with a corresponding communication scheme among a plurality of communication schemes, wherein the plurality of communication sub-modules comprises a near-field communication sub-module, wherein the first coil is shared by the near-field communication sub-module and the power transmission unit, wherein a first input of each of the near-field communication sub-module and the power transmission unit is connected to a first point of the first coil and a second input of the near-field communication sub-module and a second input of the power transmission unit are connected to different points of the first coil, so that a length of the first oil corresponding to the near-field communication sub-module and a length of the first coil corresponding to the power transmission unit are different, and wherein a width of a trace in the first coil corresponding to the power transmission unit and a width of a trace in the first coil corresponding to the near-field communication sub-module are different; and
a controller configured to;
in response to receiving a communication signal from the wireless power receiver, identify one of the plurality of communication sub-modules corresponding to a communication scheme associated with the received communication signal,control the identified one of the plurality of communication sub-modules to establish a pairing with the wireless power receiver, andbased on the established pairing with the wireless power receiver, control the power supply to apply the current to the power transmission unit to wirelessly transmit power to the wireless power receiver.
1 Assignment
0 Petitions
Accused Products
Abstract
A wireless power transmitter for charging a wireless power receiver is provided. The wireless power transmitter includes a power transmission unit configured to transmit power for charging the wireless power receiver, by using a current applied to the power transmission unit, a communication module configured to receive out-of-band communication signal from the wireless power receiver and a controller configured to apply the current to the power transmission unit to transmit power in response to receiving the out-of-band communication signal from the wireless power receiver.
25 Citations
13 Claims
-
1. A wireless power transmitter, comprising:
-
a power supply; a power transmission unit configured to wirelessly transmit power for charging a wireless power receiver, by using a current applied from the power supply; a communication module comprising a plurality of communication sub-modules sharing a first coil, wherein each of the plurality of communication sub-modules is associated with a corresponding communication scheme among a plurality of communication schemes, wherein the plurality of communication sub-modules comprises a near-field communication sub-module, wherein the first coil is shared by the near-field communication sub-module and the power transmission unit, wherein a first input of each of the near-field communication sub-module and the power transmission unit is connected to a first point of the first coil and a second input of the near-field communication sub-module and a second input of the power transmission unit are connected to different points of the first coil, so that a length of the first oil corresponding to the near-field communication sub-module and a length of the first coil corresponding to the power transmission unit are different, and wherein a width of a trace in the first coil corresponding to the power transmission unit and a width of a trace in the first coil corresponding to the near-field communication sub-module are different; and a controller configured to; in response to receiving a communication signal from the wireless power receiver, identify one of the plurality of communication sub-modules corresponding to a communication scheme associated with the received communication signal, control the identified one of the plurality of communication sub-modules to establish a pairing with the wireless power receiver, and based on the established pairing with the wireless power receiver, control the power supply to apply the current to the power transmission unit to wirelessly transmit power to the wireless power receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
Specification