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。

公开(公告)号：US20080088252A1

公开(公告)日：2008-04-17

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 ,  G05F1/00 ,  H05B41/36

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：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：US07471287B2

公开(公告)日：2008-12-30

申请号：US11618048

申请日：2006-12-29

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： G09G5/00 ,  G05F1/00

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

摘要： A light source driving circuit is adapted for driving a light-emitted component. The light source driving circuit includes a power supply, a dimming circuit, and a feedback circuit. An output terminal of the power supply is coupled to one terminal of the light-emitted component to supply a power to the light-emitted component, and determine the power value according to a feedback signal received by a feedback terminal of the power supply. A first terminal of the dimming circuit is coupled to another terminal of the light-emitted component. A second terminal of the dimming circuit is coupled to a common voltage. According to a logic state of a pulse width signal, the dimming circuit determines the conduction of the first terminal and the second terminal. The feedback circuit is coupled between the first terminal and the feedback terminal, and determines the feedback signal according to on/off state of the dimming circuit.

摘要翻译： 光源驱动电路适于驱动发光部件。 光源驱动电路包括电源，调光电路和反馈电路。 电源的输出端子连接到发光部件的一个端子，以向光发射部件供电，并且根据由电源的反馈端子接收到的反馈信号来确定功率值。 调光电路的第一端子耦合到光发射部件的另一个端子。 调光电路的第二端子耦合到公共电压。 根据脉冲宽度信号的逻辑状态，调光电路确定第一端子和第二端子的导通。 反馈电路耦合在第一端子和反馈端子之间，并且根据调光电路的开/关状态来确定反馈信号。

公开(公告)号：US20080265781A1

公开(公告)日：2008-10-30

申请号：US11840989

申请日：2007-08-19

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

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

IPC分类号： H01J7/24 ,  H05B37/00

CPC分类号： H05K1/0209 ,  F21K9/00 ,  F21V23/005 ,  F21Y2105/00 ,  F21Y2115/10 ,  F21Y2115/15 ,  H05K1/181 ,  H05K2201/066 ,  H05K2201/09781 ,  H05K2201/09972 ,  H05K2201/10106 ,  H05K2203/1572

摘要： A light source module including a circuit substrate, light emitting chip packages, and driving devices is provided. The circuit substrate has a top surface and a bottom surface opposite to the top surface. The bottom surface has at least one component installed area and at least one metal exposed area. The light emitting chip packages are disposed on the top surface. The driving devices are disposed in the component installed area. The driving devices are electrically connected to the light emitting chip packages through the circuit substrate.

摘要翻译： 提供了包括电路基板，发光芯片封装和驱动装置的光源模块。 电路基板具有与顶表面相对的顶表面和底表面。 底面具有至少一个部件安装区域和至少一个金属暴露区域。 发光芯片封装设置在顶表面上。 驱动装置设置在部件安装区域中。 驱动装置通过电路基板电连接到发光芯片封装。

公开(公告)号：US20080150877A1

公开(公告)日：2008-06-26

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：US20080116817A1

公开(公告)日：2008-05-22

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： H05B41/36

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：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。