Wireless power transmission/reception apparatus and method
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsKwang Du LEE, Kyung Uk KIM, Jeong Hoon KIM, Eung Ju KIM
Life of this patent
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Abstract
Disclosed herein is a wireless power transmission/reception apparatus. The wireless power transmission/reception apparatus includes a wireless power transmission unit and a wireless power reception unit. The wireless power transmission unit receives power, generates a wireless power signal to be wirelessly transmitted, wirelessly transmits the generated wireless power signal in a magnetic resonance manner, receives a returned wireless power signal and detects the number of power consumption devices, and wirelessly transmits a wireless power signal using resonance frequency appropriate for the number of power consumption devices.
Claims20
A wireless power transmission/reception apparatus, comprising:
- a wireless power transmission unit for receiving power from an outside, generating a wireless power signal to be wirelessly transmitted, wirelessly transmitting the generated wireless power signal in a magnetic resonance manner, receiving a returned wireless power signal and detecting a number of power consumption devices, and wirelessly transmitting a wireless power signal using resonance frequency appropriate for the number of power consumption devices, thereby transmitting the wireless power signals so that power can be supplied to the power consumption devices;
- and
- a wireless power reception unit installed in each of the power consumption devices, and configured to receive the wireless power signal from the wireless power transmission unit in a magnetic resonance manner, provide the wireless power signal to at least one connected power consumption device, and return a remaining wireless power signal, not consumed by at least one unconnected power consumption device, to the wireless power transmission unit.
7-10. (canceled)
A wireless power transmission unit, comprising:
- a power signal generator for receiving power from an outside, and generating and outputting a wireless power signal, that is, power to be wirelessly transmitted;
- a first resonance antenna comprised of an inductor and a capacitor, and configured to transmit the wireless power signal in a magnetic resonance manner using resonance frequency depending on the inductor and the capacitor, and receive and output a returned wireless power signal returned from a wireless power reception unit;
- a directional power coupler having directionality so that the wireless power signal input from the power signal generator through a first port thereof is output to the first resonance antenna through a second port thereof and the returned wireless power signal input from the first resonance antenna through the second port is output through a third port thereof;
- a power detector for detecting and outputting power of the returned wireless power signal output through the third port of the directional power coupler;
- and
- a controller for detecting a number of power consumption devices based on intensity of the power of the returned wireless power signal detected by the power detector, and performing control so that the wireless power signal is transmitted using resonance frequency and power intensity appropriate for the detected number of power consumption devices.
17-21. (canceled)
A wireless power transmission/reception method, comprising:
- a wireless power transmission unit transmitting a wireless power signal to a wireless power reception unit in a magnetic resonance manner, being returned a remaining wireless power signal of the wireless power signal to be provided to a power consumption device in which the wireless power reception unit has been installed, and determining whether at least one power consumption device has been connected;
- and
- the wireless power transmission unit, if at least one power consumption device is determined to have been connected, searching for a resonance frequency at which maximum power transmission is performed, detecting a number of power consumption devices using the found resonance frequency, and transmitting a wireless power signal at a power intensity appropriate for the detected number of power consumption devices.
A wireless power transmission method, comprising:
- a wireless power transmission unit transmitting a wireless power signal to a wireless power reception unit in a magnetic resonance manner;
- the wireless power transmission unit receiving a returned wireless power signal from a wireless power reception unit, detecting a power intensity, and determining whether at least one power consumption device has been connected;
- and
- the wireless power transmission unit, if at least one power consumption device is determined to have been connected, searching for a resonance frequency at which maximum power transmission is performed, detecting a number of power consumption devices using the found resonance frequency, and transmitting a wireless power signal at a power intensity appropriate for the detected number of power consumption devices.
(canceled)
Dependencies are inferred from the claim text.