公开(公告)号：US3995202A

公开(公告)日：1976-11-30

申请号：US527187

申请日：1974-11-26

申请人： John J. Powers ,  Joseph R. Thibodeau

发明人： John J. Powers ,  Joseph R. Thibodeau

IPC分类号： H03K17/94 ,  H03H9/00

CPC分类号： H03K17/941

摘要： In the device disclosed, a load is energized from energy-carrying lines. A detector responsive to a cyclically recurring physical condition, such as daylight, places a switch either in an operating mode or an idling mode in response to the absence of the condition. A control shifts from an idling mode to an operating mode in response to the detector being in a given one of its modes and shifts back to the idling mode after a given time less than the period of the cyclically recurring physical condition. A circuit responds to the control being shifted to its operating mode in response to the given one of the modes of the detector and responds to the detector simultaneously being in the operating mode so as to connect the lines to the load.

摘要翻译： 在所公开的装置中，负载从能量输送线路通电。 响应于周期性重复的物理条件（例如日光）的检测器响应于不存在条件而将开关置于操作模式或空转模式。 响应于检测器处于给定的一种模式，控制从空转模式转换到操作模式，并且在经过周期性循环的物理条件的时间段之后的一个给定时间内返回到空转模式。 电路响应于控制器响应于给定的一个检测器的模式而响应于其操作模式，并且响应于同时处于操作模式的检测器，以将线路连接到负载。

公开(公告)号：US5195016A

公开(公告)日：1993-03-16

申请号：US905153

申请日：1992-06-25

申请人： John J. Powers

发明人： John J. Powers

IPC分类号： H01H47/24

CPC分类号： H01H47/24

摘要： A photoelectric load control system for applying a.c. power to a street light as a function of ambient light level includes switching means for selectively applying a.c. power to a street light for turning the street light on and off; a trigger circuit having two states, a first state which actuates the switching means to turn on the street light and a second state which actuates the switching means to turn off the street light; means for biasing the trigger circuit into one of the states; and photoelectric sensing means for varying the bias on the trigger circuit to drive it into the other state in response to the ambient light level sensed by the photoelectric sensing means.

摘要翻译： 光电负载控制系统。 作为环境光级别的功能的路灯的功率包括用于选择性地施加交流电的切换装置。 用路灯照亮路灯的电源; 具有两个状态的触发电路，启动开关装置以接通路灯的第一状态和致动开关装置关闭路灯的第二状态; 用于将触发电路偏置成其中一个状态的装置; 以及光电检测装置，用于响应于由光电检测装置感测到的环境光水平，改变触发电路上的偏压以将其驱动到另一状态。