公开(公告)号：WO2005106901A3

公开(公告)日：2006-05-26

申请号：PCT/IB2005051394

申请日：2005-04-28

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  WAFFENSCHMIDT EBERHARD ,  REITER HARALD ,  DEPPE CARSTEN ,  SAUERLAENDER GEORG ,  ACKERMANN BERND

Inventor： WAFFENSCHMIDT EBERHARD ,  REITER HARALD ,  DEPPE CARSTEN ,  SAUERLAENDER GEORG ,  ACKERMANN BERND

IPC: H01F38/14 ,  H02J5/00 ,  H02J7/02 ,  H02M3/337

CPC classification number: H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/80 ,  H02J50/90 ,  H02M3/337

Abstract: A wireless resonant powering device (1) according to the invention comprises a first inductor winding (3), which is arranged to form a transformer (9) with the inductor winding (13) of the energizable load (11). The first inductor winding (3) is arranged to form a resonant circuit (5), which may comprise a suitable plurality of electric capacitances and coils. The components of the resonant circuit (5) are selected such that the magnetic energy received by the inductor winding (13) damps the energy flow in the resonant circuit so that the induced voltage in the inductor winding (13) is substantially constant and is independent of the magnetic coupling between the first inductor winding (3) and the inductor winding 13 at the operating frequency of the driving means (6). The resonant circuit is driven by the driving means (6), comprising a control unit (6c) arranged to induce an alternating voltage between a first semiconductor switch (6a) and a second semiconductor switch (6b). At the output of the transformer (9) an alternating voltage is generated, which is rectified to a DC-voltage by a diode rectifier, filtered by an output capacitance. The resonant circuit (5) is operable on its coupling independent point by the driving means (6). This figure schematically illustrates a situation, where a variable coupling between the first inductor winding (3) and the inductor winding (13) exists. The invention further relates to a wireless inductive powering device, an energizable load, a wireless system and a method for wireless power transfer.

Abstract translation: 根据本发明的无线谐振供电装置（1）包括第一电感器绕组（3），其被布置成与可激励负载（11）的电感器绕组（13）形成变压器（9）。 第一电感器绕组（3）被布置成形成谐振电路（5），其可以包括合适的多个电容和线圈。 选择谐振电路（5）的组件使得由电感线圈（13）接收的磁能减小谐振电路中的能量流，使得电感器绕组（13）中的感应电压基本上是恒定的并且是独立的 在驱动装置（6）的工作频率下，第一电感线圈（3）和电感器绕组13之间的磁耦合。 谐振电路由驱动装置（6）驱动，包括布置成在第一半导体开关（6a）和第二半导体开关（6b）之间引起交流电压的控制单元（6c）。 在变压器（9）的输出端产生交流电压，由二极管整流器整流为直流电压，由输出电容滤波。 谐振电路（5）可通过驱动装置（6）在其耦合独立点上操作。 该图示意性地示出了存在第一电感线圈（3）和电感线圈（13）之间的可变耦合的情况。 本发明还涉及无线感应供电装置，可激励负载，无线系统和无线电力传送方法。