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公开(公告)号:US4029993A
公开(公告)日:1977-06-14
申请号:US642014
申请日:1975-12-18
CPC分类号: H02J9/065 , H02M7/53806 , Y10S315/05 , Y10T307/625
摘要: An emergency lighting system includes a two-level switching transistor inverter circuit for starting and operating a fluorescent lamp from a battery upon failure of line voltage. One of the switching transistors of the two transistor inverter is arranged for connection first to a tap, then to one of the feed-in terminals of an output transformer coupled with the lamp. A timing controller effects this switching thereby automatically to provide, first, a high power level for starting the lamp, and then, a second lower power level for operating the lamp after starting.
摘要翻译: 应急照明系统包括用于在线路电压故障时从电池启动和操作荧光灯的两电平开关晶体管反相器电路。 两个晶体管反相器的开关晶体管之一被布置成首先连接到抽头,然后被布置成与灯连接的输出变压器的馈入端子之一。 定时控制器自动实现该切换,从而自动地提供用于启动灯的高功率电平,然后提供用于在启动之后操作灯的第二较低功率电平。
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2.
公开(公告)号:US6132084A
公开(公告)日:2000-10-17
申请号:US201024
申请日:1998-11-30
申请人: Walter Whipple, III , Robert Philbrick Alley , Piero Patrone Bonissone , Mark Edward Dausch , Vivek Venugopal Badami
发明人: Walter Whipple, III , Robert Philbrick Alley , Piero Patrone Bonissone , Mark Edward Dausch , Vivek Venugopal Badami
CPC分类号: H05B6/6455 , G01J5/041
摘要: A temperature sensor system for a household appliance, such as a microwave oven, that provides for a non-contact self-calibrating measurement of the temperature of an object disposed in a chamber of the appliance. The system comprises an infrared transmitter and an infrared receiver, as well as a distribution apparatus for coupling the transmitter and receiver to the appliance chamber. A scan pattern of infrared radiation is provided for the chamber and the detected infrared radiation from the chamber is used by a processor to generate an accurate measure of the temperature of the object in the chamber.
摘要翻译: 用于诸如微波炉的家用电器的温度传感器系统,其提供设置在器具室中的物体的温度的非接触自校准测量。 该系统包括红外发射器和红外接收器,以及用于将发射器和接收器耦合到器具室的分配装置。 为腔室提供红外辐射的扫描图案,并且来自腔室的检测到的红外辐射由处理器用于产生腔室中物体的温度的精确测量。
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公开(公告)号:US4063108A
公开(公告)日:1977-12-13
申请号:US646009
申请日:1976-01-02
CPC分类号: H02J9/065 , H02M7/53806 , Y10T307/615 , Y10T307/625
摘要: An emergency lighting system includes a switching transistor inverter circuit for starting and operating a fluorescent lamp from a battery upon failure of line voltage. A lockout arrangement serves to shut down inverter operation should the lamp be removed from its fixture. Included is an interlock in the lamp fixture and circuitry responsive to an open condition at the interlock to ground the input to a system controller inhibit function thereby to effect removal of battery power from the inverter circuit.
摘要翻译: 应急照明系统包括用于在线路电压故障时从电池启动和操作荧光灯的开关晶体管反相器电路。 如果灯从其固定装置中取出,则锁定装置用于关闭逆变器操作。 包括灯具和电路中的互锁,其响应于互锁处的打开状态,以将输入接地到系统控制器的禁止功能,从而实现从逆变器电路中去除电池电力。
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