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公开(公告)号:US08111008B2
公开(公告)日:2012-02-07
申请号:US12503559
申请日:2009-07-15
IPC分类号: G05F1/00
CPC分类号: H05B41/36 , H05B37/0254 , H05B37/0272
摘要: A ballast having a microprocessor embedded therein is controlled via four inputs. The ballast includes a high-voltage phase-controlled signal provided by a dimmer and an infrared (IR) receiver through which the ballast can receive data signals from an IR transmitter. The ballast can also receive commands from other ballasts or a master control on the serial digital communication link, such as a DALI protocol link. The fourth input is an analog signal, which is simply a DC signal that linearly ranges in value from a predetermined lower limit to a predetermined upper limit, corresponding to the 0% to 100% dimming range of the load. The output stage of the ballast includes one or more FETs, which are used to control the current flow to the lamp. Based on these inputs, the microprocessor makes a decision on the intensity levels of the load and directly drives the FETs in the output stage.
摘要翻译: 其中嵌有微处理器的镇流器通过四个输入进行控制。 镇流器包括由调光器和红外(IR)接收器提供的高压相位控制信号,镇流器可以通过该接收器从IR发射器接收数据信号。 镇流器还可以从串行数字通信链路(例如DALI协议链路)接收来自其他镇流器的命令或主控制器。 第四输入是模拟信号,其仅仅是对应于负载的0%至100%调光范围的从预定下限到预定上限的线性范围的直流信号。 镇流器的输出级包括一个或多个FET,用于控制流向灯的电流。 基于这些输入,微处理器对负载的强度水平做出决定,并直接驱动输出级的FET。