公开(公告)号：US20120188794A1

公开(公告)日：2012-07-26

申请号：US13183007

申请日：2011-07-14

Applicant: Lon-Kou Chang ,  Chang-Yu Wu ,  Li-Wei Yen

Inventor： Lon-Kou Chang ,  Chang-Yu Wu ,  Li-Wei Yen

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0845

Abstract: An adaptive bleeder circuit is applicable to a power converter, in which the power converter has a transformer primary side and a transformer secondary side, and the power converter enables input power to be selectively input or not input to the transformer primary side through a pulse-width-modulated signal. The adaptive bleeder circuit includes a switched bleeder circuit, and the bleeder circuit switch dynamically adjusts a turn on/off ratio (or referred to as duty ratio) of the switch element according to the TRIAC holding current and the converter input current of an alternating current (AC) TRIAC. When the input current is less than the holding current, the bleeder circuit increases conduction time ratio of the pulse-width-modulated signal, such that the input current recovers to the holding current to maintain normal conduction of the AC TRIAC.

Abstract translation: 自适应泄放电路适用于功率转换器，其中功率转换器具有变压器初级侧和变压器次级侧，并且功率转换器使得输入功率能够通过脉冲发生器选择性地输入或不输入到变压器初级侧， 宽度调制信号。 自适应泄放电路包括开关放电电路，泄放电路开关根据TRIAC保持电流和交流电流的转换器输入电流动态地调节开关元件的导通/截止比（或称为占空比） （AC）TRIAC。 当输入电流小于保持电流时，泄放电路增加了脉宽调制信号的导通时间比，使得输入电流恢复到保持电流以保持AC TRIAC的正常导通。

公开(公告)号：US08610375B2

公开(公告)日：2013-12-17

申请号：US13183007

申请日：2011-07-14

Applicant: Lon-Kou Chang ,  Chang-Yu Wu ,  Li-Wei Yen

Inventor： Lon-Kou Chang ,  Chang-Yu Wu ,  Li-Wei Yen

IPC: H05B37/02

CPC classification number: H02M3/33507 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0845

Abstract: An adaptive bleeder circuit is applicable to a power converter, in which the power converter has a transformer primary side and a transformer secondary side, and the power converter enables input power to be selectively input or not input to the transformer primary side through a pulse-width-modulated signal. The adaptive bleeder circuit includes a switched bleeder circuit, and the bleeder circuit switch dynamically adjusts a turn on/off ratio (or referred to as duty ratio) of the switch element according to the TRIAC holding current and the converter input current of an alternating current (AC) TRIAC. When the input current is less than the holding current, the bleeder circuit increases conduction time ratio of the pulse-width-modulated signal, such that the input current recovers to the holding current to maintain normal conduction of the AC TRIAC.

Abstract translation: 自适应泄放电路适用于功率转换器，其中功率转换器具有变压器初级侧和变压器次级侧，并且功率转换器使得输入功率能够通过脉冲发生器选择性地输入或不输入到变压器初级侧， 宽度调制信号。 自适应泄放电路包括开关放电电路，泄放电路开关根据TRIAC保持电流和交流电流的转换器输入电流动态地调节开关元件的导通/截止比（或称为占空比） （AC）TRIAC。 当输入电流小于保持电流时，泄放电路增加了脉宽调制信号的导通时间比，使得输入电流恢复到保持电流以保持AC TRIAC的正常导通。

公开(公告)号：US20130009616A1

公开(公告)日：2013-01-10

申请号：US13410034

申请日：2012-03-01

Applicant: Lon-Kou Chang ,  Hsing-Fu Liu ,  Chang-Yu Wu ,  Li-Wei Yen

Inventor： Lon-Kou Chang ,  Hsing-Fu Liu ,  Chang-Yu Wu ,  Li-Wei Yen

IPC: G05F1/455

CPC classification number: H05B33/0806 ,  H05B39/044 ,  Y02B20/348

Abstract: An auto-selecting holding current circuit is applicable to a converter. A primary side of the converter has a Triode for Alternating Current (TRIAC) and a bleeder circuit. The auto-selecting holding current circuit includes a first sensor module, a second sensor module and a reference voltage selecting circuit. The first sensor module detects an input current drop time or an input voltage drop time to output a sense signal. The second sensor module receives a current detector signal and outputs a critical current signal to detect a holding-current value range of the TRIAC. The reference voltage selecting circuit outputs a reference current signal to the bleeder circuit, and the reference current signal corresponds to a holding-current value of the TRIAC. Therefore, the bleeder circuit maintains normal operation of the TRIACs with different holding-current values.

Abstract translation: 自动选择保持电流电路适用于转换器。 转换器的初级侧具有交流电三极管（TRIAC）和泄放电路。 所述自动选择保持电流电路包括第一传感器模块，第二传感器模块和参考电压选择电路。 第一传感器模块检测输入电流下降时间或输入电压下降时间以输出感测信号。 第二传感器模块接收电流检测器信号并输出​​临界电流信号以检测TRIAC的保持电流值范围。 参考电压选择电路向放大器电路输出参考电流信号，并且参考电流信号对应于TRIAC的保持电流值。 因此，泄放电路保持具有不同保持电流值的TRIAC的正常工作。

公开(公告)号：US08575901B2

公开(公告)日：2013-11-05

申请号：US13410034

申请日：2012-03-01

Applicant: Lon-Kou Chang ,  Hsing-Fu Liu ,  Chang-Yu Wu ,  Li-Wei Yen

Inventor： Lon-Kou Chang ,  Hsing-Fu Liu ,  Chang-Yu Wu ,  Li-Wei Yen

IPC: G05F1/40 ,  H05B41/36

CPC classification number: H05B33/0806 ,  H05B39/044 ,  Y02B20/348

Abstract: An auto-selecting holding current circuit is applicable to a converter. A primary side of the converter has a Triode for Alternating Current (TRIAC) and a bleeder circuit. The auto-selecting holding current circuit includes a first sensor module, a second sensor module and a reference voltage selecting circuit. The first sensor module detects an input current drop time or an input voltage drop time to output a sense signal. The second sensor module receives a current detector signal and outputs a critical current signal to detect a holding-current value range of the TRIAC. The reference voltage selecting circuit outputs a reference current signal to the bleeder circuit, and the reference current signal corresponds to a holding-current value of the TRIAC. Therefore, the bleeder circuit maintains normal operation of the TRIACs with different holding-current values.

Abstract translation: 自动选择保持电流电路适用于转换器。 转换器的初级侧具有交流电三极管（TRIAC）和泄放电路。 所述自动选择保持电流电路包括第一传感器模块，第二传感器模块和参考电压选择电路。 第一传感器模块检测输入电流下降时间或输入电压下降时间以输出感测信号。 第二传感器模块接收电流检测器信号并输出​​临界电流信号以检测TRIAC的保持电流值范围。 参考电压选择电路向放大器电路输出参考电流信号，并且参考电流信号对应于TRIAC的保持电流值。 因此，泄放电路保持具有不同保持电流值的TRIAC的正常工作。

公开(公告)号：US20130187543A1

公开(公告)日：2013-07-25

申请号：US13471660

申请日：2012-05-15

Applicant: Lon-Kou Chang ,  Hsing-Fu Liu ,  Li-Wei Yen ,  Jyun-Ji Chen

Inventor： Lon-Kou Chang ,  Hsing-Fu Liu ,  Li-Wei Yen ,  Jyun-Ji Chen

IPC: H05B37/00

CPC classification number: H02H9/001 ,  H05B33/0884

Abstract: A dynamic damper in a lighting driving circuit for limiting an inrush current includes a damper circuit and a timing circuit comprising capacitor. The damper circuit is connected to the timing circuit. When an input voltage is provided to the dynamic damper, the capacitor begins to be charged and the capacitance-voltage of the capacitor rises. The damper circuit enters to a first working state and generates a dynamic damper resistor value. When the capacitance-voltage of the capacitor is greater than a first threshold voltage, the damper circuit enters to a second working state and the dynamic damper resistor value begins to decrease. When the capacitance-voltage of the capacitor is greater than a second threshold voltage, the damper circuit enters to a short-circuit state, and the dynamic damper resistor value decreases to zero to facilitate the normal work of the power source converter.

Abstract translation: 用于限制浪涌电流的照明驱动电路中的动态阻尼器包括阻尼电路和包括电容器的定时电路。 阻尼电路连接到定时电路。 当向动态阻尼器提供输入电压时，电容器开始被充电，并且电容器的电容电压上升。 阻尼器电路进入第一工作状态并产生动态阻尼电阻值。 当电容器的电容电压大于第一阈值电压时，阻尼器电路进入第二工作状态，动态阻尼电阻值开始下降。 当电容器的电容电压大于第二阈值电压时，阻尼器电路进入短路状态，并且动态阻尼电阻值减小到零以便于电源转换器的正常工作。

公开(公告)号：US09136699B2

公开(公告)日：2015-09-15

申请号：US13471660

申请日：2012-05-15

Applicant: Lon-Kou Chang ,  Hsing-Fu Liu ,  Li-Wei Yen ,  Jyun-Ji Chen

Inventor： Lon-Kou Chang ,  Hsing-Fu Liu ,  Li-Wei Yen ,  Jyun-Ji Chen

IPC: H05B37/02 ,  H02H9/00 ,  H05B33/08

CPC classification number: H02H9/001 ,  H05B33/0884

Abstract: A dynamic damper in a lighting driving circuit for limiting an inrush current includes a damper circuit and a timing circuit comprising capacitor. The damper circuit is connected to the timing circuit. When an input voltage is provided to the dynamic damper, the capacitor begins to be charged and the capacitance-voltage of the capacitor rises. The damper circuit enters to a first working state and generates a dynamic damper resistor value. When the capacitance-voltage of the capacitor is greater than a first threshold voltage, the damper circuit enters to a second working state and the dynamic damper resistor value begins to decrease. When the capacitance-voltage of the capacitor is greater than a second threshold voltage, the damper circuit enters to a short-circuit state, and the dynamic damper resistor value decreases to zero to facilitate the normal work of the power source converter.

Abstract translation: 用于限制浪涌电流的照明驱动电路中的动态阻尼器包括阻尼电路和包括电容器的定时电路。 阻尼电路连接到定时电路。 当向动态阻尼器提供输入电压时，电容器开始被充电，并且电容器的电容电压上升。 阻尼器电路进入第一工作状态并产生动态阻尼电阻值。 当电容器的电容电压大于第一阈值电压时，阻尼器电路进入第二工作状态，并且动态阻尼电阻值开始减小。 当电容器的电容电压大于第二阈值电压时，阻尼器电路进入短路状态，并且动态阻尼电阻值减小到零以便于电源转换器的正常工作。