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1.发明申请REFERENCE VOLTAGE GENERATING CIRCUIT AND LED DRIVER CIRCUIT HAVING THE SAME THEREIN 有权具有相同电压的基准电压发生电路和LED驱动电路公开(公告)号：US20120153848A1
公开(公告)日：2012-06-21
申请号：US13316897
申请日：2011-12-12
申请人： Du-su Shin , Shane Baik , Chang-sik Lim
发明人： Du-su Shin , Shane Baik , Chang-sik Lim
IPC分类号： H05B37/02
CPC分类号： G09G3/3406 , G09G2320/062 , G09G2320/064 , G09G2330/00 , G09G2330/12
摘要： A reference voltage generating circuit used for a light-emitting diode (LED) driver circuit and a light-emitting diode (LED) driver circuit are provided. A reference voltage generating circuit used for a light-emitting diode (LED) driver circuit includes a voltage measurer configured to sequentially measure feedback voltages of a plurality of LED arrays, the LED arrays being connected to one another in parallel, a quantizer configured to search for one of the plurality of LED arrays having a lowest feedback voltage of the measured feedback voltages, a comparator configured to compare an output of the voltage measurer with a preset comparison voltage to generate a reference voltage, and a timing controller configured to control the comparator to output the generated reference voltage corresponding to the one of the plurality of LED arrays.
摘要翻译： 提供了用于发光二极管（LED）驱动电路和发光二极管（LED）驱动电路的参考电压产生电路。 用于发光二极管（LED）驱动电路的参考电压产生电路包括：电压测量器，被配置为顺序测量多个LED阵列的反馈电压，所述LED阵列彼此并联连接;量化器，被配置为搜索 对于所述多个LED阵列中的一个具有所测量的反馈电压的最低反馈电压的比较器，比较器，被配置为将所述电压测量器的输出与预设的比较电压进行比较以产生参考电压;以及定时控制器，被配置为控制所述比较器 以输出与多个LED阵列中的一个对应的所生成的参考电压。
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2.发明授权Reference voltage generating circuit and LED driver circuit having the same therein 有权参考电压发生电路和LED驱动电路具有相同的功能公开(公告)号：US08686652B2
公开(公告)日：2014-04-01
申请号：US13316897
申请日：2011-12-12
申请人： Du-su Shin , Shane Baik , Chang-sik Lim
发明人： Du-su Shin , Shane Baik , Chang-sik Lim
IPC分类号： H05B37/02
CPC分类号： G09G3/3406 , G09G2320/062 , G09G2320/064 , G09G2330/00 , G09G2330/12
摘要： A reference voltage generating circuit used for a light-emitting diode (LED) driver circuit and a light-emitting diode (LED) driver circuit are provided. A reference voltage generating circuit used for a light-emitting diode (LED) driver circuit includes a voltage measurer configured to sequentially measure feedback voltages of a plurality of LED arrays, the LED arrays being connected to one another in parallel, a quantizer configured to search for one of the plurality of LED arrays having a lowest feedback voltage of the measured feedback voltages, a comparator configured to compare an output of the voltage measurer with a preset comparison voltage to generate a reference voltage, and a timing controller configured to control the comparator to output the generated reference voltage corresponding to the one of the plurality of LED arrays.
摘要翻译： 提供了用于发光二极管（LED）驱动电路和发光二极管（LED）驱动电路的参考电压产生电路。 用于发光二极管（LED）驱动电路的参考电压产生电路包括：电压测量器，被配置为顺序测量多个LED阵列的反馈电压，所述LED阵列彼此并联连接;量化器，被配置为搜索 对于所述多个LED阵列中的一个具有所测量的反馈电压的最低反馈电压的比较器，比较器，被配置为将所述电压测量器的输出与预设的比较电压进行比较以产生参考电压;以及定时控制器，被配置为控制所述比较器 以输出与多个LED阵列中的一个对应的所生成的参考电压。
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