公开(公告)号：EP3202008A2

公开(公告)日：2017-08-09

申请号：EP15770873.6

申请日：2015-09-25

申请人： Drayson Technologies (Europe) Limited

发明人： KWAN, Christopher Howe ,  PINUELA RANGEL, Manuel ,  MITCHESON, Paul ,  YATES, David

IPC分类号： H02J5/00 ,  H02J7/02

CPC分类号： H02J50/12 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/20

摘要： There is provided a near-field inductive power transfer system (10), comprising a power transmission device (100) arranged to transmit power wirelessly at a first frequency, f
0 , and a power reception device (200) arranged to receive power transmitted by the power transmission device (100). The power reception device (200) is moveable relative to the power transmission device (100) and comprises a receiver circuit (210) configured to receive power for powering a variable load (230) when the power reception device (200) is in a near-field region of the power transmission device (100), the receiver circuit being a resonant circuit with a resonant frequency, f
R, such that 0.2 0 /f
R

摘要翻译： 近场感应功率传输系统10包括发射器100，以发射频率f0无线发射功率到功率接收设备200，功率接收设备200相对于其可移动，并且当在近场区域中接收用于可变负载230的功率时 功率接收装置200包括具有谐振频率fR的接收器电路210。 发射器频率与接收器谐振频率f0 / fR之比在0.2与3之间。阻抗仿真器220向负载提供功率，并通过变化的负载抑制呈现给接收器电路的阻抗变化。 阻抗仿真器可以包括汲取基本上恒定功率的DC-DC转换器，例如ζ电路，反激电路，降压 - 升压电路，SEPIC，Cuk，降压或升压转换器。 由发送设备100发送的功率可以根据指示接收器电路的输出电压的反馈信号来控制，所述反馈信号由电压监视器240测量并且由信号发送器250发送到反馈接收器130。