公开(公告)号：US08952620B2

公开(公告)日：2015-02-10

申请号：US14266539

申请日：2014-04-30

申请人： Jae Hong Jeong ,  Minjong Kim

发明人： Jae Hong Jeong ,  Minjong Kim

IPC分类号： H05B37/00 ,  H05B33/08

CPC分类号： H05B33/083 ,  H05B33/0806 ,  H05B33/089

摘要： A driver circuit for driving light emitting diodes (LEDs). The driver circuit includes: a string of LEDs divided into n groups, the n groups of LEDs being electrically connected to each other in series, a downstream end of group m−1 being electrically connected to the upstream end of group m, where m is a positive number equal to or less than n. The driver circuit also includes a plurality of current regulating circuits, each of the current regulating circuits being coupled to the downstream end of a corresponding group at one end and coupled to the ground at the other end and including a sensor amplifier and a cascode having first and second transistors, each sensor amplifier being coupled to a different voltage source for providing a different reference voltage thereto.

摘要翻译： 驱动发光二极管（LED）的驱动电路。 驱动器电路包括：一串LED分为n组，n组LED彼此串联电连接，组m-1的下游端电连接到组m的上游端，其中m为 正数等于或小于n。 驱动器电路还包括多个电流调节电路，每个电流调节电路在一端耦合到对应组的下游端，并在另一端耦合到地，并且包括传感器放大器和具有第一 和第二晶体管，每个传感器放大器耦合到不同的电压源，以向其提供不同的参考电压。

公开(公告)号：US09504110B2

公开(公告)日：2016-11-22

申请号：US14222543

申请日：2014-03-21

申请人： Minjong Kim ,  Weifeng Chen ,  Jungung Kim ,  Jae Hong Jeong ,  Kyeongtae Moon

发明人： Minjong Kim ,  Weifeng Chen ,  Jungung Kim ,  Jae Hong Jeong ,  Kyeongtae Moon

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0824 ,  H05B33/083 ,  H05B37/02

摘要： An AC light system with a control unit for controlling power of an LED is disclosed. According to one embodiment, a driver circuit for driving LEDs has a plurality of current sinks, a first interface configured to receive an AC power from an AC power source, a second interface to a plurality LED groups. The driver circuit further has a third interface configured to receive a control input from a control unit. Each current sink of the plurality of current sinks controls an LED current flowing through a corresponding LED group based on the control input from the control unit.

摘要翻译： 公开了具有用于控制LED功率的控制单元的交流发光系统。 根据一个实施例，用于驱动LED的驱动器电路具有多个电流吸收器，被配置为从AC电源接收AC电力的第一接口，到多个LED组的第二接口。 驱动器电路还具有被配置为从控制单元接收控制输入的第三接口。 多个电流吸收器的每个电流吸收器基于来自控制单元的控制输入来控制流过对应的LED组的LED电流。

公开(公告)号：US20140252968A1

公开(公告)日：2014-09-11

申请号：US14266610

申请日：2014-04-30

申请人： Jae Hong Jeong ,  Minjong Kim

发明人： Jae Hong Jeong ,  Minjong Kim

IPC分类号： H05B33/08

CPC分类号： H05B33/083 ,  H05B33/0806 ,  H05B33/089

摘要： A driver circuit for driving light emitting diodes (LEDs). The driver circuit includes: a string of LEDs divided into n groups, the n groups of LEDs being electrically connected to each other in series, a downstream end of group m-1 being electrically connected to the upstream end of group m, where m is a positive number equal to or less than n. The driver circuit also includes a plurality of current regulating circuits, each of the current regulating circuits being coupled to the downstream end of a corresponding group at one end and coupled to the ground at the other end and including a sensor amplifier and a cascode having first and second transistors, each sensor amplifier being coupled to a different voltage source for providing a different reference voltage thereto.

摘要翻译： 驱动发光二极管（LED）的驱动电路。 驱动器电路包括：一串LED分为n组，n组LED彼此串联电连接，组m-1的下游端电连接到组m的上游端，其中m为 正数等于或小于n。 驱动器电路还包括多个电流调节电路，每个电流调节电路在一端耦合到对应组的下游端，并在另一端耦合到地，并且包括传感器放大器和具有第一 和第二晶体管，每个传感器放大器耦合到不同的电压源，以向其提供不同的参考电压。

公开(公告)号：US08901849B2

公开(公告)日：2014-12-02

申请号：US13528850

申请日：2012-06-21

申请人： Jae Hong Jeong ,  Minjong Kim

发明人： Jae Hong Jeong ,  Minjong Kim

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/083 ,  H05B33/0806 ,  H05B33/089

摘要： A driver circuit for driving light emitting diodes (LEDs). The driver circuit includes: a string of LEDs divided into n groups, the n groups of LEDs being electrically connected to each other in series, a downstream end of group m-1 being electrically connected to the upstream end of group m, where m is a positive number equal to or less than n. The driver circuit also includes a plurality of current regulating circuits, each of the current regulating circuits being coupled to the downstream end of a corresponding group at one end and coupled to the ground at the other end and including a sensor amplifier and a cascode having first and second transistors, each sensor amplifier being coupled to a different voltage source for providing a different reference voltage thereto.

摘要翻译： 驱动发光二极管（LED）的驱动电路。 驱动器电路包括：一串LED分为n组，n组LED彼此串联电连接，组m-1的下游端电连接到组m的上游端，其中m为 正数等于或小于n。 驱动器电路还包括多个电流调节电路，每个电流调节电路在一端耦合到对应组的下游端，并在另一端耦合到地，并且包括传感器放大器和具有第一 和第二晶体管，每个传感器放大器耦合到不同的电压源，以向其提供不同的参考电压。

公开(公告)号：US08928254B2

公开(公告)日：2015-01-06

申请号：US14266610

申请日：2014-04-30

申请人： Jae Hong Jeong ,  Minjong Kim

发明人： Jae Hong Jeong ,  Minjong Kim

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/083 ,  H05B33/0806 ,  H05B33/089

摘要： A driver circuit for driving light emitting diodes (LEDs). The driver circuit includes: a string of LEDs divided into n groups, the n groups of LEDs being electrically connected to each other in series, a downstream end of group m−1 being electrically connected to the upstream end of group m, where m is a positive number equal to or less than n. The driver circuit also includes a plurality of current regulating circuits, each of the current regulating circuits being coupled to the downstream end of a corresponding group at one end and coupled to the ground at the other end and including a sensor amplifier and a cascode having first and second transistors, each sensor amplifier being coupled to a different voltage source for providing a different reference voltage thereto.

公开(公告)号：US20140232278A1

公开(公告)日：2014-08-21

申请号：US14266539

申请日：2014-04-30

申请人： Jae Hong Jeong ,  Minjong Kim

发明人： Jae Hong Jeong ,  Minjong Kim

IPC分类号： H05B33/08

CPC分类号： H05B33/083 ,  H05B33/0806 ,  H05B33/089

摘要： A driver circuit for driving light emitting diodes (LEDs). The driver circuit includes: a string of LEDs divided into n groups, the n groups of LEDs being electrically connected to each other in series, a downstream end of group m−1 being electrically connected to the upstream end of group m, where m is a positive number equal to or less than n. The driver circuit also includes a plurality of current regulating circuits, each of the current regulating circuits being coupled to the downstream end of a corresponding group at one end and coupled to the ground at the other end and including a sensor amplifier and a cascode having first and second transistors, each sensor amplifier being coupled to a different voltage source for providing a different reference voltage thereto.

摘要翻译： 驱动发光二极管（LED）的驱动电路。 驱动器电路包括：一串LED分为n组，n组LED彼此串联电连接，组m-1的下游端电连接到组m的上游端，其中m为 正数等于或小于n。 驱动器电路还包括多个电流调节电路，每个电流调节电路在一端耦合到对应组的下游端，并在另一端耦合到地，并且包括传感器放大器和具有第一 和第二晶体管，每个传感器放大器耦合到不同的电压源，以向其提供不同的参考电压。

公开(公告)号：US20120280622A1

公开(公告)日：2012-11-08

申请号：US13528850

申请日：2012-06-21

申请人： Jae Hong Jeong ,  Minjong Kim

发明人： Jae Hong Jeong ,  Minjong Kim

IPC分类号： H05B37/02

CPC分类号： H05B33/083 ,  H05B33/0806 ,  H05B33/089

摘要： A driver circuit for driving light emitting diodes (LEDs). The driver circuit includes: a string of LEDs divided into n groups, the n groups of LEDs being electrically connected to each other in series, a downstream end of group m-1 being electrically connected to the upstream end of group m, where m is a positive number equal to or less than n. The driver circuit also includes a plurality of current regulating circuits, each of the current regulating circuits being coupled to the downstream end of a corresponding group at one end and coupled to the ground at the other end and including a sensor amplifier and a cascode having first and second transistors, each sensor amplifier being coupled to a different voltage source for providing a different reference voltage thereto.

摘要翻译： 驱动发光二极管（LED）的驱动电路。 驱动器电路包括：一串LED分为n组，n组LED彼此串联电连接，组m-1的下游端电连接到组m的上游端，其中m为 正数等于或小于n。 驱动器电路还包括多个电流调节电路，每个电流调节电路在一端耦合到对应组的下游端，并在另一端耦合到地，并且包括传感器放大器和具有第一 和第二晶体管，每个传感器放大器耦合到不同的电压源，以向其提供不同的参考电压。

公开(公告)号：US20140333220A1

公开(公告)日：2014-11-13

申请号：US14339413

申请日：2014-07-23

申请人： Jae Hong Jeong

发明人： Jae Hong Jeong

IPC分类号： H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/083 ,  H05B33/089

摘要： A driver circuit for driving light emitting diodes (LEDs). The driver circuit includes a string of LEDs divided into n groups and the n groups of LEDs is electrically connected to each other in series, where a downstream end of group m−1 is electrically connected to the upstream end of group m. The driver circuit also includes a power source coupled to an upstream end of group 1 and provides an input voltage. The driver circuit further includes current regulating circuits, where each of the current regulating circuits is coupled to the downstream end of the corresponding group at one end and coupled to a ground at the other end. Each of the current regulating circuits includes a sensor amplifier and a cascode having first and second transistors. The driver circuit also includes detectors, where each of the detectors detects a source voltage of the first transistor.

摘要翻译： 驱动发光二极管（LED）的驱动电路。 驱动器电路包括分成n组的LED串，并且n组LED彼此串联电连接，其中组m-1的下游端电连接到组m的上游端。 驱动器电路还包括耦合到组1的上游端的电源并提供输入电压。 驱动器电路还包括电流调节电路，其中每个电流调节电路在一端耦合到相应组的下游端，并在另一端耦合到地。 每个电流调节电路包括传感器放大器和具有第一和第二晶体管的共源共栅。 驱动器电路还包括检测器，其中每个检测器检测第一晶体管的源极电压。

公开(公告)号：US5834801A

公开(公告)日：1998-11-10

申请号：US873727

申请日：1997-06-12

申请人： Jae Hong Jeong

发明人： Jae Hong Jeong

IPC分类号： H01L27/14 ,  H01L27/148 ,  H01L31/0224 ,  H01L29/768

CPC分类号： H01L31/022466 ,  H01L27/14831

摘要： A solid state image sensor includes a semiconductor substrate and a plurality of transfer lines over the substrate and receiving clock signals, at least one of the plurality of transfer lines having a transparent conductive material. A plurality of transfer electrodes are connected to the transfer lines and a plurality of photoelectric conversion regions under a surface of the substrate generate image signals. A plurality of charge transfer regions under the surface of the substrate transfer the image signals from the photoelectric conversion regions in response to the clock signals from the transfer lines.

摘要翻译： 固态图像传感器包括半导体衬底和在衬底上的多个传输线并且接收时钟信号，所述多个传输线中的至少一个具有透明导电材料。 多个传输电极连接到传输线，并且在衬底的表面下方的多个光电转换区产生图像信号。 基板表面下方的多个电荷转移区域响应于来自传输线路的时钟信号而传送来自光电转换区域的图像信号。

公开(公告)号：US20120146522A1

公开(公告)日：2012-06-14

申请号：US13316734

申请日：2011-12-12

申请人： Jae Hong Jeong

发明人： Jae Hong Jeong

IPC分类号： H05B37/00

CPC分类号： H05B33/0815 ,  H05B33/083 ,  H05B33/089

摘要： A driver circuit for driving light emitting diodes (LEDs). The driver circuit for driving light emitting diodes (LEDs) includes a string of LEDs divided into n groups. The n groups of LEDs are electrically connected to each other in series and the downstream end of group m−1 is electrically connected to the upstream end of group m, where m is a positive number equal to or less than n. The driver circuit also includes a plurality of current regulating circuits, where each of the current regulating circuits is coupled to a downstream end of a corresponding group and has at least one transistor and a detector for measuring a current flowing through the corresponding group.

摘要翻译： 驱动发光二极管（LED）的驱动电路。 用于驱动发光二极管（LED）的驱动电路包括分成n组的一串LED。 n组的LED串联电连接，并且组m-1的下游端电连接到组m的上游端，其中m是等于或小于n的正数。 驱动器电路还包括多个电流调节电路，其中每个电流调节电路耦合到对应组的下游端，并且具有至少一个晶体管和用于测量流过对应组的电流的检测器。