公开(公告)号：US3836814A

公开(公告)日：1974-09-17

申请号：US31763072

申请日：1972-12-22

申请人： RODRIQUEZ E

发明人： RODRIQUEZ E

IPC分类号： H01R33/94 ,  H01R33/945 ,  H01J7/44 ,  H01J19/78

CPC分类号： H01R33/9453 ,  H01R33/94

摘要： A conversion device is disclosed which adapts a three-way light fixture to the use of an ordinary electric bulb of the type having but a single filament. The device employs a pair of current controllers which can be activated separately or together by the three-way switch of the light fixture. Each controller governs the current flow to the filament during different half cycles of the full cycle of the impressed a.c. line voltage. One controller employs a trigger circuit to gate an SCR on at a predetermined phase of the a.c. wave whereby the SCR conducts current to the filament for a portion of a half wave to provide the lowest level of illumination. The other controller utilizes a diode to permit one half of the full wave alternating current to flow in the filament to provide an intermediate level of illumination. The highest level of illumination is obtained where the current controllers are activated together so that the diode conducts for one half of the a.c. cycle and the SCR conducts for a portion of the other half of the a.c. cycle.

摘要翻译： 公开了一种转换装置，其将三向灯具适应于使用具有单根灯丝的普通电灯泡。 该装置采用一对电流控制器，可以通过灯具的三通开关单独激活或一起启动。 每个控制器控制电流流向灯丝的不同半周期内的全压缩直流。 线电压。 一个控制器采用一个触发电路来在一个预定的交流相位上对一个SCR进行门控。 从而SCR对半波的一部分传导电流到灯丝以提供最低水平的照明。 另一个控制器利用二极管来允许全波交流电流的一半在灯丝中流动以提供中等水平的照明。 在电流控制器一起激活的情况下，获得最高级的照明，使得二极管导通一次直流。 循环，SCR的另一半的一部分交替进行。 周期。