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公开(公告)号：US20170008447A1
公开(公告)日：2017-01-12
申请号：US15204538
申请日：2016-07-07
Inventor： Takahiro FUKUI , Masaaki TAKAMATSU , Kazuya KATO
CPC classification number: B60Q1/1407 , B60Q1/0094 , B60Q1/1446 , F21S41/143 , F21S41/147 , F21S41/255 , F21S41/321 , F21S41/60 , F21S41/663 , F21Y2115/10 , H05B33/0815 , H05B33/083 , H05B33/0845
Abstract: The lighting device includes a control circuit performing dimming control of dimming a light source device according to a desired dimming level. In the dimming control, the control circuit sets a desired current value of amplitude control to a value corresponding to the desired dimming level, and set a desired duty cycle of pulse width modulation control to a predetermined value associated with a dimming subrange containing the desired dimming level, of multiple different dimming subranges of a total dimming range of the light source device. The predetermined value is a duty cycle allowing luminance of the light source device to be equal to upper limit luminance of the associated dimming subrange under a condition where the current value of the current of the light source device is a maximum value.
Abstract translation: 照明装置包括控制电路，根据期望的调光水平进行调光光源装置的调光控制。 在调光控制中，控制电路将期望的幅度控制电流值设置为与期望的调光电平相对应的值，并将期望的脉宽调制控制占空比设置为与包含所需调光的调光子范围相关联的预定值 水平，光源装置的总调光范围的多个不同的调光子范围。 预定值是在光源装置的电流的当前值为最大值的条件下允许光源装置的亮度等于相关联的调光子范围的上限亮度的占空比。
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公开(公告)号：US20170072837A1
公开(公告)日：2017-03-16
申请号：US15240305
申请日：2016-08-18
Inventor： Masatoshi UENO , Masaaki TAKAMATSU , Toshiaki SASAKI , Kazuya KATO
Abstract: The lighting control device includes a controller, a diagnosis circuit, a latch circuit, and a logic circuit. The controller outputs a control signal. The diagnosis circuit outputs an irregular signal. The latch circuit decides a state of a forcibly lighting signal. The logic circuit controls a light source in accordance with an ignition signal, the control signal, and the forcibly lighting signal. The logic circuit turns on the light source in accordance with the ignition signal while receiving the forcibly lighting signal, and turns on the light source in accordance with the control signal while not receiving the forcibly lighting signal.
Abstract translation: 照明控制装置包括控制器，诊断电路，锁存电路和逻辑电路。 控制器输出控制信号。 诊断电路输出不规则信号。 锁存电路决定强制点亮信号的状态。 逻辑电路根据点火信号，控制信号和强制点亮信号控制光源。 逻辑电路在接收强制点亮信号的同时，根据点火信号接通光源，并且在不接收到强制点亮信号的同时根据控制信号接通光源。
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公开(公告)号：US20170305328A1
公开(公告)日：2017-10-26
申请号：US15479411
申请日：2017-04-05
Inventor： Kazuya KATO , Toshiaki NAKAMURA , Akihiro KISHIMOTO , Kenichi FUKUDA , Masaaki TAKAMATSU
IPC: B60Q1/14 , H05B33/08 , F21S8/10 , F21Y2115/10
CPC classification number: B60Q1/143 , B60Q1/0023 , B60Q1/0035 , B60Q1/0041 , B60Q1/0094 , B60Q2300/146 , F21S41/141 , F21S41/148 , F21S41/19 , F21S41/20 , F21S41/255 , F21S41/285 , F21S41/321 , F21S41/39 , F21Y2115/10 , H05B33/0854 , H05B33/089
Abstract: A lighting device includes a thermal sensor, power converter circuits and a control circuit. The thermal sensor is configured to measure an internal temperature of a case. The power converter circuits are housed in the case and configured to be connected with different types of light sources, respectively. The control circuit is housed in the case and has priorities that are provided with respect to the different types of light sources according to their respective types. The control circuit is configured to, when the internal temperature is greater than a threshold, control the respective outputs of the power converter circuits so as to preferentially decrease an output for a light source corresponding to a first priority.
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