公开(公告)号：US08878447B2

公开(公告)日：2014-11-04

申请号：US14099431

申请日：2013-12-06

Applicant: Lutron Electronics Co., Inc.

Inventor： Venkatesh Chitta ,  Jonathan Robert Quayle ,  Alexander J. Rovnan ,  Mark S. Taipale ,  Dragan Veskovic

IPC: H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  H05B37/00 ,  H05B39/00 ,  H05B41/14 ,  H05B41/16 ,  H05B41/24 ,  H05B41/295 ,  H05B41/38

CPC classification number: H05B41/24 ,  H05B37/00 ,  H05B41/295 ,  H05B41/38

Abstract: A load control device, such as an electronic ballast, for controlling the power delivered from an AC power source to an electrical load, such as one or more fluorescent lamps, comprises a power converter having an inductor and a power switching device coupled to the inductor, a load control circuit adapted to be coupled to the electrical load, and a control circuit operable to calculate an average input power of the load control device. The control circuit may be operable to calculate a cumulative output power of the power converter while the ballast is preheating filaments of the lamps, and to subsequently determine a fault condition in the lamps in response to the calculated cumulative output power of the power converter. Further, the control circuit may be operable to transmit a digital message including the calculated average input power of the load control device.

公开(公告)号：US20140091722A1

公开(公告)日：2014-04-03

申请号：US14099431

申请日：2013-12-06

Applicant: Lutron Electronics Co., Inc.

Inventor： Venkatesh Chitta ,  Jonathan Robert Quayle ,  Alexander J. Rovnan ,  Mark S. Taipale ,  Dragan Veskovic

IPC: H05B41/24 ,  H05B41/38 ,  H05B37/00

CPC classification number: H05B41/24 ,  H05B37/00 ,  H05B41/295 ,  H05B41/38

Abstract: A load control device, such as an electronic ballast, for controlling the power delivered from an AC power source to an electrical load, such as one or more fluorescent lamps, comprises a power converter having an inductor and a power switching device coupled to the inductor, a load control circuit adapted to be coupled to the electrical load, and a control circuit operable to calculate an average input power of the load control device. The control circuit may be operable to calculate a cumulative output power of the power converter while the ballast is preheating filaments of the lamps, and to subsequently determine a fault condition in the lamps in response to the calculated cumulative output power of the power converter. Further, the control circuit may be operable to transmit a digital message including the calculated average input power of the load control device.

Abstract translation: 用于控制从AC电源传递到诸如一个或多个荧光灯的电负载的功率的诸如电子镇流器的负载控制装置包括具有耦合到电感器的电感器和功率开关装置的功率转换器 ，适于耦合到所述电负载的负载控制电路，以及可操作以计算所述负载控制装置的平均输入功率的控制电路。 控制电路可以可操作以在镇流器预热灯的灯丝时计算功率转换器的累积输出功率，并且随后响应于所计算的功率转换器的累积输出功率来确定灯中的故障状况。 此外，控制电路可以用于发送包括计算出的负载控制装置的平均输入功率的数字消息。