公开(公告)号：EP1480492A3

公开(公告)日：2007-09-19

申请号：EP04009708.1

申请日：2004-04-23

申请人： Siemens Audiologische Technik GmbH

发明人： Reithinger, Jürgen

IPC分类号： H04R25/00 ,  H03H7/46 ,  H03B1/00 ,  H04B1/04

CPC分类号： H01F19/02 ,  H01F21/12 ,  H01F30/06 ,  H04R25/554 ,  H04R25/558 ,  H04R2225/51

摘要： Bei einem Sendespulensystem (1,11) mit einer ersten mit einer Anregeeinheit (101) verbindbaren und einer zweiten als Teil eines resonant anregbaren Schwingkreises (110) verwendbaren Sendespule (3,102,5,15,104) sowie mit einem Spulenkern (7,19) sind beide Sendespulen (3,102,5,15,104) lose magnetisch miteinander gekoppelt, indem beide Sendespulen (3,102,5,15,104) nebeneinander auf den Spulenkern (7,19) gewickelt sind. Eine Anregung der ersten Sendespule (3,102) führt in der zweiten Sendspule (5,15,104) zu einer resonanten Überhöhung der anliegenden Spannung und damit zu einer verstärkten Sendeleistung. Ein solches Sendespulensystem (1,11) kann z.B. zur Fernbedienung eines Hörhilfsgeräts genutzt werden, da es z.B. eine 200Bit/s Datenübertragung über einige Meter bei einer Niedervoltspannungsquelle ermöglicht.

公开(公告)号：EP0438636A2

公开(公告)日：1991-07-31

申请号：EP90117297.3

申请日：1990-09-07

申请人： MUSASHINO TUKO CO., LTD.

发明人： Tochio, Yoshiro ,  Nishimura, Yoshihiro ,  Konishi, Hideo

IPC分类号： H01F27/00 ,  H01F19/02 ,  H01F27/02

CPC分类号： H01F27/324 ,  H01F19/02 ,  H01F27/027 ,  H01F2005/025

摘要： A double-insulated transformer of the coaxial type comprises a core assembly having a center core, a primary winding assembly assembled to surround coaxially the center core which has a primary bobbin case, a primary coil winding wound around the bobbin case and a primary terminal portion provide at an axial end of the bobbin case for connecting the primary coil winding and input lead lines, a secondary winding assembly assembled to surround coaxially the primary winding assembly which has a secondary bobbin case, a secondary coil winding wound around the secondary bobbin case and a secondary terminal portion provided at an axial end of the secondary bobbin case opposite to the primary terminal portion for connecting the secondary coil winding with external lead lines, and an insulating case assembled to surround coaxially the secondary winding assembly. The insulating case comprises a body portion of tube-like shape for covering the secondary coil winding and at least one covering portion formed integrally on an axial end of the body portion and extending along the axial direction for covering one of the primary and secondary terminal portions. By the insulating case provided, the coverage and protection of the secondary coil winding and terminal portions can easily and effectively carried out.

摘要翻译： 同轴型的双重绝缘变压器包括具有中心芯的芯组件，组装成同轴地包围中心芯的初级绕组组件，所述中心芯具有初级绕线筒壳体，缠绕在梭壳上的初级线圈绕组和主端子部分 提供在所述梭壳的轴向端部处，用于连接所述初级线圈绕组和输入引线;二次绕组组件，其组装成同轴地包围所述初级绕组组件，所述初级绕组组件具有次级绕线筒壳体，缠绕在所述辅助梭壳体上的次级线圈绕组， 次级端子部分，设置在次级绕组壳体的与主端子部分相对的轴向端部处，用于将次级线圈绕组与外部引线连接;以及绝缘壳体，其组装成同轴地包围次级绕组组件。 所述绝缘壳体包括用于覆盖所述次级线圈绕组的管状形状的主体部分和至少一个覆盖部分，所述至少一个覆盖部分整体地形成在所述主体部分的轴向端部上并且沿着所述轴向方向延伸以覆盖所述主端子部分和所述次端子部分中的一个 。 通过提供的绝缘壳体，可以容易且有效地进行次级线圈绕组和端子部分的覆盖和保护。

公开(公告)号：EP0007781A1

公开(公告)日：1980-02-06

申请号：EP79301438.2

申请日：1979-07-19

申请人： THE RANK ORGANISATION LIMITED

发明人： Kummel, Winfried

IPC分类号： G05F1/12 ,  H03G3/20 ,  H03F1/52 ,  H01F19/02

CPC分类号： G05F1/12 ,  H01F19/02 ,  H03F1/52 ,  H03F2200/204 ,  H03F2200/231 ,  H03G3/20 ,  H04R3/007

摘要： The invention concerns a method of controlling the current supplied by a current source to a load. The current is supplied to the load 12 via a first conductor 11 from the current source 10 and the current in the first conductor 11 is monitored by a second conductor 13 disposed alongside the first so that a current is induced in the second conductor 13 which is proportional to the current in the first conductor 11. The signal in the second conductor 13 is fed back to control the supply of current by the current source 10 in dependence upon the behaviour of the induced signal.
The invention is applicable to the short circuit protection of amplifier end stages and the control of loudspeaker amplifiers in the resonance frequency region.

摘要翻译： 本发明涉及一种控制由电流源向负载提供的电流的方法。 电流通过第一导体11从电流源10提供给负载12，并且第一导体11中的电流由与第一导体一起设置的第二导体13监测，使得在第二导体13中感应出电流，第二导体13是 与第一导体11中的电流成比例。第二导体13中的信号被反馈以根据感应信号的行为来控制电流源10的电流供应。 本发明适用于放大器端级的短路保护和谐振频率区域中扬声器放大器的控制。