Wireless power transmitter and wireless power transmission method
First Claim
1. A wireless power transmitter which wirelessly transmits a power to a wireless power receiver, the wireless power transmitter comprising:
- a power source for supplying a power;
a transmission coil for wirelessly transmitting the power received from the power source;
a detector for detecting a quantity of energy stored in the transmission coil; and
a controller for adjusting an intensity and a transmission pattern of the power supplied to the transmission coil based on the detection result,wherein the controller controls the power source to supply the power that is pulsed at a predetermined time interval for a specific time to determine an existence state of the wireless power receiver and the detector determines that the wireless power receiver exists if the quantity of energy stored in the transmission coil is less than a threshold value while the power source supplies the pulsed power, andwherein the controller controls the power source to supply the power continuously if the wireless power receiver exists and adjusts an intensity of the power in response to a requirement of the wireless power receiver while the power source does continuously supply the power.
0 Assignments
0 Petitions
Accused Products
Abstract
A wireless power transmitter which wirelessly transmits a power to a wireless power receiver, the wireless power transmitter includes a power source for supplying a power; a transmission coil for wirelessly transmitting the power received from the power source; a detector for detecting a quantity of energy stored in the transmission coil; and a controller for adjusting an intensity and a transmission pattern of the power supplied to the transmission coil based on the detection result, wherein the controller controls the power source to supply the power at a predetermined period through a time-division scheme to determine an existence state of the wireless power receiver.
-
Citations
10 Claims
-
1. A wireless power transmitter which wirelessly transmits a power to a wireless power receiver, the wireless power transmitter comprising:
-
a power source for supplying a power; a transmission coil for wirelessly transmitting the power received from the power source; a detector for detecting a quantity of energy stored in the transmission coil; and a controller for adjusting an intensity and a transmission pattern of the power supplied to the transmission coil based on the detection result, wherein the controller controls the power source to supply the power that is pulsed at a predetermined time interval for a specific time to determine an existence state of the wireless power receiver and the detector determines that the wireless power receiver exists if the quantity of energy stored in the transmission coil is less than a threshold value while the power source supplies the pulsed power, and wherein the controller controls the power source to supply the power continuously if the wireless power receiver exists and adjusts an intensity of the power in response to a requirement of the wireless power receiver while the power source does continuously supply the power. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A wireless power transmission method by a wireless power transmitter to wirelessly transmit a power to a wireless power receiver, the wireless power transmission method comprising:
-
supplying a power to a transmission coil for wirelessly transmitting the power; detecting a quantity of energy stored in the transmission coil; and adjusting an intensity and a transmission pattern of the power supplied to the transmission coil based on the detection result, wherein the adjusting of the intensity and the transmission pattern of the power comprises supplying the power that is pulsed to the transmission coil at a predetermined time interval for a specific time to determine an existence state of the wireless power receiver and the detecting comprises determining that the wireless power receiver exists if the quantity of energy stored in the transmission coil is less than a threshold value while the power source supplies the pulsed power, and wherein the adjusting of the intensity and the transmission pattern of the power further comprises supplying the power continuously if the wireless power receiver exists and adjusting an intensity of the power in response to a requirement of the wireless power receiver while the power source does continuously supply the power. - View Dependent Claims (7, 8, 9, 10)
-
Specification