METHOD AND SYSTEM FOR REDUCTION OF RADIATION FIELD IN WIRELESS POWER TRANSFER SYSTEM
摘要
PURPOSE: A wireless power transmission device and method for reducing radiated power of a magnetic resonator are provided to transmit energy by selecting a frequency having relatively low radiated power. CONSTITUTION: A signal generator(102) generates a frequency signal used for wireless energy transmission from general commercial AC powder. A power amplifying unit(104) amplifies the frequency signal. A signal detection unit(106) transfers the amplified signal to a magnetic resonator for wireless energy transmission and detects a radiated signal caused by the magnetic resonator. A standing-wave ratio calculation unit(108) calculates a standing-wave ratio from the detected signal. A control unit selects the frequency having the lowest standing-wave ratio using the standing-wave ratios calculated by the standing-wave ratio calculation unit.
申请公布号
KR20120072181(A)
申请公布日期
2012.07.03
申请号
KR20100134010
申请日期
2010.12.23
申请人
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人
KIM, SEONG MIN;CHO, IN KUI;YUN, JE HOON;MOON, JUNG ICK;KANG, SEUNG YOUL;KIM, YONG HAE;CHEON, SANG HOON;LEE, MYUNG LAE;BYUN, WOO JIN;KIM, CHANG JOO