公开(公告)号：EP0705056A3

公开(公告)日：1997-01-29

申请号：EP95306845.9

申请日：1995-09-28

申请人： Toroids Hong Kong Limited

发明人： Christoffersson, Per H.

IPC分类号： H05B39/04

CPC分类号： H05B39/041 ,  Y02B20/14 ,  Y10T307/944

摘要： An apparatus for applying a variable voltage to an electric load (10) utilizes a transformer (20) with several taps (221,222,223) to provide different voltage levels for the load. The load (10) is connected to alternate taps by a switching device (40), which is operated by a control device (50) responsive to short interruptions in the power supply to the load. Short interruptions in power can be generated by rapidly turning one or more existing power switches (32,34) in circuit with the load off and on again, so remote control is possible from several locations. Apparatus with the above structure is particularly suitable while employing a toroidal transformer for dimmer control of halogen lamps.

公开(公告)号：EP0705056A2

公开(公告)日：1996-04-03

申请号：EP95306845.9

申请日：1995-09-28

申请人： Toroids Hong Kong Limited

发明人： Christoffersson, Per H.

IPC分类号： H05B39/04

CPC分类号： H05B39/041 ,  Y02B20/14 ,  Y10T307/944

摘要： An apparatus for applying a variable voltage to an electric load (10) utilizes a transformer (20) with several taps (221,222,223) to provide different voltage levels for the load. The load (10) is connected to alternate taps by a switching device (40), which is operated by a control device (50) responsive to short interruptions in the power supply to the load. Short interruptions in power can be generated by rapidly turning one or more existing power switches (32,34) in circuit with the load off and on again, so remote control is possible from several locations. Apparatus with the above structure is particularly suitable while employing a toroidal transformer for dimmer control of halogen lamps.

摘要翻译： appts。 包括具有多个次级抽头的变压器，并且开关装置具有用于将电负载连接到交替抽头的多个状态，开关装置响应于提供给负载以改变其状态的功率的短暂中断。 电源开关与负载一起提供电路，通过打开和关闭电源开关可以改变开关装置的状态。 appts。 还包括用于在对负载供电的长时间中断之后将开关装置复位到预定状态的装置。 开关装置包括步进电机，电子逻辑电路，多个机械开关和多个电子功率开关装置。