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公开(公告)号：US09516714B2
公开(公告)日：2016-12-06
申请号：US14377567
申请日：2013-01-09
CPC分类号： H05B33/083 , H05B33/0809 , H05B33/0815 , H05B33/0827 , H05B33/0842 , H05B37/02
摘要： A control circuit performs ON/OFF control for a switching element so that LED current flowing in an LED unit is within a rated current range. In the case where the LED unit is lit, a voltage applied between both ends of series connection of a reactor and the LED unit becomes a first bus voltage, when the switching element is ON, and becomes a voltage lower than the first bus voltage, that is determined based on the first bus voltage and a second bus voltage, when a switching element is OFF.
摘要翻译： 控制电路对开关元件进行ON / OFF控制，使得在LED单元中流动的LED电流处于额定电流范围内。 在LED单元点亮的情况下，在电抗器的串联连接的两端和LED单元之间施加的电压成为第一总线电压，当开关元件为ON时，变为低于第一总线电压的电压时， 当开关元件为OFF时，其基于第一总线电压和第二总线电压确定。
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公开(公告)号：US20150035444A1
公开(公告)日：2015-02-05
申请号：US14377567
申请日：2013-01-09
IPC分类号： H05B33/08
CPC分类号： H05B33/083 , H05B33/0809 , H05B33/0815 , H05B33/0827 , H05B33/0842 , H05B37/02
摘要： A control circuit performs ON/OFF control for a switching element so that LED current flowing in an LED unit is within a rated current range. In the case where the LED unit is lit, a voltage applied between both ends of series connection of a reactor and the LED unit becomes a first bus voltage, when the switching element is ON, and becomes a voltage lower than the first bus voltage, that is determined based on the first bus voltage and a second bus voltage, when a switching element is OFF.
摘要翻译： 控制电路对开关元件进行ON / OFF控制，使得在LED单元中流动的LED电流处于额定电流范围内。 在LED单元点亮的情况下，在电抗器的串联连接的两端和LED单元之间施加的电压成为第一总线电压，当开关元件为ON时，变为低于第一总线电压的电压时， 当开关元件为OFF时，其基于第一总线电压和第二总线电压确定。
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