APPARATUS AND METHOD FOR WIRLESS POWER TRANSFER

• Main Authors: VILENSKIY ARTEM RUDOLFOVICH, OLYUNIN NIKOLAY NIKOLAYEVICH, PARK, SUNG BUM, MAKURIN MIKHAIL NIKOLAYEVICH, KHRIPKOV ALEXANDER NIKOLAYEVICH, KIM, DO WON
• Format: Patent
• Language: English; Korean
• Published: 24.01.2018
• Subjects: BASIC ELECTRONIC CIRCUITRY; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS; SYSTEMS FOR STORING ELECTRIC ENERGY

Provided is a device for wirelessly transmitting power to an external device. According to an embodiment of the present invention, the device for wireless power transmission comprises: a resonant circuit including an adaptive circuit including at least one variable capacitor and a first inductor inductively coupled to an external device, and configured to transmit power to the external device using inductive coupling; and a first direct current power supply device configured to apply a direct current voltage to the adaptive circuit on the basis of a control signal, wherein capacitance of at least one variable capacitor is adjusted on the basis of the direct current voltage applied to the adaptive circuit. 외부 디바이스에게 무선으로 전력을 전송하는 디바이스가 제공된다. 일 실시 예에 따른 무선 전력 전송 디바이스는 적어도 하나의 가변 커패시터(variable capacitor)를 포함하는 적응적 회로(adaptive circuit) 및 외부 디바이스와 유도 결합(inductive coupling)된 제 1 인덕터(inductor)를 포함하고, 유도 결합(inductive coupling)을 이용하여 외부 디바이스에게 전력을 전송하도록 구성된 공진 회로, 및 제어 신호에 기초하여 직류 전압을 상기 적응적 회로에게 인가하도록 구성된 제 1 직류 전원 공급 장치를 포함하고, 적어도 하나의 가변 커패시터의 커패시턴스(capacitance)는 적응적 회로에게 인가된 직류 전압에 기초하여 조정된다.