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公开(公告)号：US09504111B2
公开(公告)日：2016-11-22
申请号：US14560330
申请日：2014-12-04
发明人： Eric King , John L. Melanson
CPC分类号： H05B33/0845 , G01R23/02 , H05B33/0815 , Y02B20/346
摘要： A line-frequency determining circuit for coupling to the output of a thyristor-switched dimmer that determines a line-frequency of an AC power source that supplies an input to the thyristor-controlled dimmer permits accurate control of periodic probing of the dimmer output. The probing is performed to predict zero-cross times of the AC power source that, in turn, are used to determine a dimming control value of the thyristor-switched dimmer. A minimum conductance is applied across the output of the dimmer during the probing intervals that begin at the turn-on time of the dimmer and last until enough information has been gathered to correctly predict a next zero crossing of the AC line voltage that supplies the input of the dimmer. The probing can be performed at intervals of an odd number of half-cycles of the AC line frequency so that internal dimmer timer operation is not affected by DC offset.
摘要翻译： 用于耦合到晶闸管开关调光器的输出的线路频率确定电路，其确定向晶闸管控制的调光器提供输入的AC电源的线路频率允许精确地控制调光器输出的周期性探测。 执行探测以预测交流电源的零交叉时间，其又用于确定可控硅开关调光器的调光控制值。 在调光间隔期间，在调光器的开启时间内，最小电导被施加到调光器的输出端，并且持续到足够的信息被收集以正确地预测提供输入的AC线电压的下一个过零点 的调光器。 可以以交流线路频率的奇数个半周期的间隔执行探测，使得内部调光器定时器操作不受直流偏移的影响。
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公开(公告)号：US09282598B2
公开(公告)日：2016-03-08
申请号：US14101963
申请日：2013-12-10
发明人： John L. Melanson , Eric King , Siddharth Maru
CPC分类号： H05B33/0806 , H05B33/0845 , H05B33/0848 , H05B39/044 , Y02B20/383
摘要： Systems and methods for learning dimmer characteristics provide improved efficiency in operating lighting devices. In one embodiment, an apparatus includes a lamp controller that is configured to monitor voltage information associated with one or more lamps or a dimmer of a system, adjust one or more parameters of an attach current profile in conformity with the voltage information to arrive at a selected attach current profile, and apply within the system the selected attach current profile.
摘要翻译： 用于学习调光特性的系统和方法提高了操作照明装置的效率。 在一个实施例中，一种装置包括灯控制器，其被配置为监视与一个或多个灯或系统的调光器相关联的电压信息，根据电压信息调整附接电流曲线的一个或多个参数以达到 选择附加电流配置文件，并在系统中应用所选的连接电流配置文件。
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