公开(公告)号：US20130335178A1

公开(公告)日：2013-12-19

申请号：US13975754

申请日：2013-08-26

Applicant: SMA Solar Technology AG

Inventor： Michael Viotto ,  Klaus Rigbers ,  Jens Friebe ,  Peter Zacharias

IPC: H01F21/08

CPC classification number: H01F21/08 ,  H01F13/003 ,  H01F29/14 ,  H01F2003/103

Abstract: An inductor apparatus includes an inductor winding, a core defining a magnetic circuit for a magnetic flux generated by a current flowing through the inductor winding, at least one permanent magnet magnetically biasing the core by its permanent magnetization, and a magnetization device operable for adjusting a desired magnetization of the permanent magnet. The at least one permanent magnet is arranged within the magnetic circuit of the magnetic flux generated by the current flowing through the inductor winding. The magnetization device includes a magnetization winding and a circuitry configured to subject the magnetization winding to magnetization current pulses, thereby generating at a location of the permanent magnet a magnetic field which is able to change the permanent magnetization of the permanent magnet.

Abstract translation: 电感器设备包括电感器绕组，限定用于由流过电感器绕组的电流产生的磁通量的磁路的磁芯，至少一个通过其永久磁化磁化地偏压磁芯的永磁体，以及用于调节 永磁体需要磁化。 至少一个永久磁铁布置在由流过电感器绕组的电流产生的磁通的磁路内。 磁化装置包括磁化绕组和被配置为使磁化绕组受到磁化电流脉冲的电路，从而在永磁体的位置产生能够改变永磁体的永久磁化的磁场。