公开(公告)号：US07956553B2

公开(公告)日：2011-06-07

申请号：US12536503

申请日：2009-08-06

申请人： Bi-Hsien Chen ,  Han-Yu Chao ,  Shin-Chang Lin

发明人： Bi-Hsien Chen ,  Han-Yu Chao ,  Shin-Chang Lin

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0818 ,  Y02B20/346

摘要： A light source driving circuit includes a power supply circuit, a first dimming circuit, and a control circuit. The power supply circuit has a control terminal and an output terminal that is connected to a terminal of a first light-emitting element. The first dimming circuit has a first terminal connected to the other terminal of the first light-emitting element, a second terminal connected to a common potential, and a pulse width signal input terminal. The control circuit is connected between the pulse width input terminal of the first dimming circuit and the control terminal of the power supply circuit. The first dimming circuit determines an ON/OFF state according to a logic state of the pulse width signal. The power supply circuit determines whether or not to output the voltage. The control circuit delays the power supply circuit, turns off the power supply circuit, and delays the first dimming circuit.

摘要翻译： 光源驱动电路包括电源电路，第一调光电路和控制电路。 电源电路具有连接到第一发光元件的端子的控制端子和输出端子。 第一调光电路具有连接到第一发光元件的另一个端子的第一端子，连接到公共电位的第二端子和脉冲宽度信号输入端子。 控制电路连接在第一调光电路的脉冲宽度输入端和电源电路的控制端之间。 第一调光电路根据脉冲宽度信号的逻辑状态确定ON / OFF状态。 电源电路确定是否输出电压。 控制电路延迟电源电路，关闭电源电路，并延迟第一个调光电路。

公开(公告)号：US07911441B2

公开(公告)日：2011-03-22

申请号：US11615997

申请日：2006-12-25

申请人： Han-Yu Chao ,  Bi-Hsien Chen ,  Shin-Chang Lin

发明人： Han-Yu Chao ,  Bi-Hsien Chen ,  Shin-Chang Lin

IPC分类号： G09G3/36

CPC分类号： G09G3/32 ,  G09G3/3406 ,  G09G2320/041 ,  H05B33/0827 ,  H05B33/0851

摘要： A current-controlling apparatus is suitable for controlling the current passing through a light emitting device string (LEDS), wherein an end of the LEDS is electrically connected to a first-voltage level. The current-controlling apparatus includes a current-adjusting unit and a control unit. The current-adjusting unit, electrically connected between a second-voltage level and another end of the LEDS, is used for detecting a current of the LEDS, producing a feedback signal hereby and controlling the impedance between the LEDS and the second voltage level according to a conductance-controlling signal and an impedance-controlling signal to control the current. The control unit is electrically connected to the current-adjusting unit for receiving a reference signal and the feedback signal, comparing the feedback signal with the reference signal to give a comparison result, performing a current compensation on the comparison result and converting the compensated comparison result into the conductance-controlling signal and the impedance-controlling signal.

摘要翻译： 电流控制装置适用于控制通过发光器件串（LEDS）的电流，其中LEDS的一端电连接到第一电压电平。 电流控制装置包括电流调节单元和控制单元。 电连接在第二电压电平和LEDS的另一端之间的电流调节单元用于检测LEDS的电流，从而产生反馈信号，并根据LED控制LEDS与第二电压电平之间的阻抗 电导控制信号和阻抗控制信号来控制电流。 控制单元电连接到电流调节单元，用于接收参考信号和反馈信号，将反馈信号与参考信号进行比较以给出比较结果，对比较结果执行电流补偿并转换补偿比较结果 进入电导控制信号和阻抗控制信号。

公开(公告)号：US20080093997A1

公开(公告)日：2008-04-24

申请号：US11775842

申请日：2007-07-10

申请人： Bi-Hsien Chen ,  Han-Yu Chao ,  Shin-Chang Lin

发明人： Bi-Hsien Chen ,  Han-Yu Chao ,  Shin-Chang Lin

IPC分类号： H05B41/36 ,  H05B33/08

CPC分类号： H05B33/0827 ,  H05B33/0815 ,  H05B33/0818 ,  Y02B20/346

摘要： A light source driving circuit for driving a light-emitting element is provided. The light source driving circuit includes a power supply circuit, a dimming circuit, and a feedback circuit. A first terminal of the dimming circuit is connected to a terminal of the light-emitting element, and a second terminal of the dimming circuit receives a supply voltage output from the power supply circuit. The dimming circuit determines an ON/OFF state between the first terminal and the second terminal according to a logic state of a pulse width signal. The feedback circuit is connected between the first terminal of the dimming circuit and a feedback terminal of the power supply circuit. The feedback circuit controls a level of the supply voltage output from the power supply circuit according to the ON/OFF state of the dimming circuit.

摘要翻译： 提供了用于驱动发光元件的光源驱动电路。 光源驱动电路包括电源电路，调光电路和反馈电路。 调光电路的第一端子连接到发光元件的端子，并且调光电路的第二端子接收从电源电路输出的电源电压。 调光电路根据脉冲宽度信号的逻辑状态确定第一端子和第二端子之间的接通/断开状态。 反馈电路连接在调光电路的第一端子和电源电路的反馈端子之间。 反馈电路根据调光电路的ON / OFF状态控制从电源电路输出的电源电压的电平。

公开(公告)号：US20100033100A1

公开(公告)日：2010-02-11

申请号：US12388506

申请日：2009-02-18

申请人： Han-Yu Chao ,  Chien-Lung Tsou

发明人： Han-Yu Chao ,  Chien-Lung Tsou

IPC分类号： H05B41/36

CPC分类号： H05B33/0827

摘要： A backlight module control system includes at least one backlight module, a driving circuit, at least one switch and a power supply module. The driving circuit is utilized for determining a driving signal to drive the backlight module. The switch is coupled between the driving circuit and the backlight module, and is selectively turned on or off according to the driving signal. The power supply module is coupled to the backlight module, and is utilized for providing an operating voltage required by the backlight module control system.

摘要翻译： 背光模块控制系统包括至少一个背光模块，驱动电路，至少一个开关和电源模块。 驱动电路用于确定驱动背光模块的驱动信号。 开关耦合在驱动电路和背光模块之间，并根据驱动信号选择性地导通或截止。 电源模块耦合到背光模块，并用于提供背光模块控制系统所需的工作电压。

公开(公告)号：US07592755B2

公开(公告)日：2009-09-22

申请号：US11775237

申请日：2007-07-10

申请人： Bi-Hsien Chen ,  Han-Yu Chao ,  Shin-Chang Lin

发明人： Bi-Hsien Chen ,  Han-Yu Chao ,  Shin-Chang Lin

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0818 ,  Y02B20/346

摘要： A light source driving circuit for driving a light-emitting element is provided. The light source driving circuit includes a power supply circuit, a dimming circuit, and a feedback circuit/control circuit. The power supply circuit is connected to a terminal of the light-emitting element, and the dimming circuit is connected to the other terminal of the light-emitting element. The feedback circuit/control circuit is connected between the power supply circuit and the dimming circuit. The light source driving circuit uses the feedback circuit/control circuit to delay the dimming circuit to turn off as the light source driving circuit turned off the power supply to stop outputting a voltage to the light-emitted component. Therefore, the light source driving circuit can prevent the breakdown of the dimming circuit caused by over high voltage.

摘要翻译： 提供了用于驱动发光元件的光源驱动电路。 光源驱动电路包括电源电路，调光电路和反馈电路/控制电路。 电源电路连接到发光元件的端子，并且调光电路连接到发光元件的另一个端子。 反馈电路/控制电路连接在电源电路和调光电路之间。 光源驱动电路使用反馈电路/控制电路来延迟调光电路，因为光源驱动电路关闭电源以停止向发光部件输出电压。 因此，光源驱动电路可以防止由过高的电压引起的调光电路的故障。

公开(公告)号：US07560981B2

公开(公告)日：2009-07-14

申请号：US11672514

申请日：2007-02-07

申请人： Han-Yu Chao ,  Bi-Hsien Chen ,  Shin-Chang Lin

发明人： Han-Yu Chao ,  Bi-Hsien Chen ,  Shin-Chang Lin

IPC分类号： G05F1/10

CPC分类号： H05B33/0851 ,  H05B33/0827

摘要： A controlling apparatus for controlling a plurality of LED strings and related light modules is disclosed, wherein each of the plurality of LED strings has a first terminal being electrically connected to an operating voltage. The controlling apparatus includes: a plurality of transistors, each having a control terminal, a first terminal, and a second terminal, wherein the first terminal of each transistor is electrically connected to a second terminal of a corresponding string of the plurality of LED strings, and the second terminals of the plurality of transistors are respectively grounded through a plurality of impedance elements; and a transistor controller, electrically connected to the control terminals of the plurality of transistors, for controlling a current of the first terminal of each transistor by adjusting an input signal of the control terminal of the transistor according to a voltage at the second terminal of the transistor.

摘要翻译： 公开了一种用于控制多个LED串和相关光模块的控制装置，其中多个LED串中的每一个具有电连接到工作电压的第一端子。 控制装置包括：多个晶体管，每个具有控制端子，第一端子和第二端子，其中每个晶体管的第一端子电连接到多个LED串的相应串的第二端子， 并且多个晶体管的第二端子分别通过多个阻抗元件接地; 以及晶体管控制器，电连接到所述多个晶体管的控制端子，用于通过根据所述晶体管的第二端子处的电压调整所述晶体管的控制端子的输入信号来控制每个晶体管的第一端子的电流 晶体管。

公开(公告)号：US07557520B2

公开(公告)日：2009-07-07

申请号：US11775842

申请日：2007-07-10

申请人： Bi-Hsien Chen ,  Han-Yu Chao ,  Shin-Chang Lin

发明人： Bi-Hsien Chen ,  Han-Yu Chao ,  Shin-Chang Lin

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0815 ,  H05B33/0818 ,  Y02B20/346

摘要： A light source driving circuit for driving a light-emitting element is provided. The light source driving circuit includes a power supply circuit, a dimming circuit, and a feedback circuit. A first terminal of the dimming circuit is connected to a terminal of the light-emitting element, and a second terminal of the dimming circuit receives a supply voltage output from the power supply circuit. The dimming circuit determines an ON/OFF state between the first terminal and the second terminal according to a logic state of a pulse width signal. The feedback circuit is connected between the first terminal of the dimming circuit and a feedback terminal of the power supply circuit. The feedback circuit controls a level of the supply voltage output from the power supply circuit according to the ON/OFF state of the dimming circuit.

摘要翻译： 提供了用于驱动发光元件的光源驱动电路。 光源驱动电路包括电源电路，调光电路和反馈电路。 调光电路的第一端子连接到发光元件的端子，并且调光电路的第二端子接收从电源电路输出的电源电压。 调光电路根据脉冲宽度信号的逻辑状态确定第一端子和第二端子之间的接通/断开状态。 反馈电路连接在调光电路的第一端子和电源电路的反馈端子之间。 反馈电路根据调光电路的ON / OFF状态控制从电源电路输出的电源电压的电平。

公开(公告)号：US20080284692A1

公开(公告)日：2008-11-20

申请号：US12060273

申请日：2008-04-01

申请人： Han-Yu Chao ,  Bi-Hsien Chen ,  Shin-Chang Lin

发明人： Han-Yu Chao ,  Bi-Hsien Chen ,  Shin-Chang Lin

IPC分类号： G09G3/30 ,  G09G3/36

CPC分类号： G09G3/342 ,  G09G2320/0233 ,  G09G2320/064

摘要： A luminance control circuit including a detection unit, a control unit and a current adjustor is provided. The detection unit detects a working current of each light emitting module and produces detection signals to be transmitted to the control unit. The control unit produces control signals according to the detection signals to be transmitted to the current adjustor. The current adjustor adjusts each of the working currents of each of the light emitting modules according to the control signals.

摘要翻译： 提供了包括检测单元，控制单元和电流调节器的亮度控制电路。 检测单元检测每个发光模块的工作电流，并产生要发送到控制单元的检测信号。 控制单元根据要发送到当前调节器的检测信号产生控制信号。 电流调节器根据控制信号调整每个发光模块的工作电流。

公开(公告)号：US20100141180A1

公开(公告)日：2010-06-10

申请号：US12358262

申请日：2009-01-23

申请人： Han-Yu Chao ,  Chien-Lung Tsou

发明人： Han-Yu Chao ,  Chien-Lung Tsou

IPC分类号： H05B37/02

CPC分类号： H05B33/086 ,  H05B33/0818 ,  H05B33/0827 ,  Y02B20/347

摘要： A light source system includes a current source for providing a predetermined current, a dimming control switch for turning on/off according to a dimming control signal, a first interlacing-control switch for turning on/off according to a first interlacing-control signal, a second interlacing-control switch for turning on/off according to a second interlacing-control signal, a first light emitting load for emitting light when receiving the predetermined current through the first interlacing-control switch and the dimming switch, and a second light emitting load for emitting light when receiving the predetermined current through the second interlacing-control switch and the dimming switch. When the first interlacing-control switch is turned on, the second interlacing-control switch is turned off. When the second interlacing-control switch is turned on, the first interlacing-control switch is turned off.

摘要翻译： 光源系统包括用于提供预定电流的电流源，根据调光控制信号导通/关断的调光控制开关，根据第一隔行控制信号接通/断开的第一隔行控制开关， 第二交织控制开关，用于根据第二隔行控制信号接通/断开;第一发光负载，用于当通过所述第一隔行交换控制开关和所述调光开关接收到预定电流时发光;以及第二发光负载 当通过第二隔行控制开关和调光开关接收到预定电流时发光的负载。 当第一隔行控制开关接通时，第二隔行控制开关被关闭。 当第二隔行控制开关接通时，第一隔行控制开关被关闭。

公开(公告)号：US20090295298A1

公开(公告)日：2009-12-03

申请号：US12536503

申请日：2009-08-06

申请人： Bi-Hsien Chen ,  Han-Yu Chao ,  Shin-Chang Lin

发明人： Bi-Hsien Chen ,  Han-Yu Chao ,  Shin-Chang Lin

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0818 ,  Y02B20/346

摘要： A light source driving circuit includes a power supply circuit, a first dimming circuit, and a control circuit. The power supply circuit has a control terminal and an output terminal that is connected to a terminal of a first light-emitting element. The first dimming circuit has a first terminal connected to the other terminal of the first light-emitting element, a second terminal connected to a common potential, and a pulse width signal input terminal. The control circuit is connected between the pulse width input terminal of the first dimming circuit and the control terminal of the power supply circuit. The first dimming circuit determines an ON/OFF state according to a logic state of the pulse width signal. The power supply circuit determines whether or not to output the voltage. The control circuit delays the power supply circuit, turns off the power supply circuit, and delays the first dimming circuit.

摘要翻译： 光源驱动电路包括电源电路，第一调光电路和控制电路。 电源电路具有连接到第一发光元件的端子的控制端子和输出端子。 第一调光电路具有连接到第一发光元件的另一个端子的第一端子，连接到公共电位的第二端子和脉冲宽度信号输入端子。 控制电路连接在第一调光电路的脉冲宽度输入端和电源电路的控制端之间。 第一调光电路根据脉冲宽度信号的逻辑状态确定ON / OFF状态。 电源电路确定是否输出电压。 控制电路延迟电源电路，关闭电源电路，并延迟第一个调光电路。