公开(公告)号：US08941326B2

公开(公告)日：2015-01-27

申请号：US13346851

申请日：2012-01-10

申请人： Yan-Cun Li ,  Hsing-Fu Liu ,  Jui-Chi Chang ,  Po-Yao Yeh

发明人： Yan-Cun Li ,  Hsing-Fu Liu ,  Jui-Chi Chang ,  Po-Yao Yeh

IPC分类号： G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  H05B33/08

CPC分类号： H05B33/0809 ,  H05B33/0815 ,  H05B33/0818

摘要： An Alternating-current-Direct-current (AC-DC dual-use) Light Emitting Diode (LED) driving circuit includes an input power circuit, a buck-boost converter, and a Pulse Width Modulation (PWM) signal controller. The buck-boost converter, including a switching transistor and a feedback resistor, receives a current signal output from the input power circuit, and drives an LED with a driving signal. The PWM signal controller outputs a PWM signal according to the driving signal, so as to sequentially turn on and turn off the switching transistor. One end of the feedback resistor is coupled to the LED, and a floating ground terminal of the PWM signal controller is coupled to the switching transistor and the other end of the feedback resistor. Therefore, the AC-DC dual-use LED driving circuit is capable of dynamically adjusting the duty ratio of the PWM signal without connecting an external photocoupler.

摘要翻译： 交流 - 直流（AC-DC两用）发光二极管（LED）驱动电路包括输入电源电路，降压 - 升压转换器和脉宽调制（PWM）信号控制器。 包括开关晶体管和反馈电阻器的降压 - 升压转换器接收从输入电源电路输出的电流信号，并驱动具有驱动信号的LED。 PWM信号控制器根据驱动信号输出PWM信号，以依次导通和关断开关晶体管。 反馈电阻器的一端耦合到LED，并且PWM信号控制器的浮动接地端子耦合到开关晶体管和反馈电阻器的另一端。 因此，AC-DC两用LED驱动电路能够在不连接外部光电耦合器的情况下动态调整PWM信号的占空比。

公开(公告)号：US20120313548A1

公开(公告)日：2012-12-13

申请号：US13346851

申请日：2012-01-10

申请人： Yan-Cun Li ,  Hsing-Fu Liu ,  Jui-Chi Chang ,  Po-Yao Yeh

发明人： Yan-Cun Li ,  Hsing-Fu Liu ,  Jui-Chi Chang ,  Po-Yao Yeh

IPC分类号： H05B41/282

CPC分类号： H05B33/0809 ,  H05B33/0815 ,  H05B33/0818

摘要： An Alternating-current-Direct-current (AC-DC dual-use) Light Emitting Diode (LED) driving circuit includes an input power circuit, a buck-boost converter, and a Pulse Width Modulation (PWM) signal controller. The buck-boost converter, including a switching transistor and a feedback resistor, receives a current signal output from the input power circuit, and drives an LED with a driving signal. The PWM signal controller outputs a PWM signal according to the driving signal, so as to sequentially turn on and turn off the switching transistor. One end of the feedback resistor is coupled to the LED, and a floating ground terminal of the PWM signal controller is coupled to the switching transistor and the other end of the feedback resistor. Therefore, the AC-DC dual-use LED driving circuit is capable of dynamically adjusting the duty ratio of the PWM signal without connecting an external photocoupler.

摘要翻译： 交流 - 直流（AC-DC两用）发光二极管（LED）驱动电路包括输入电源电路，降压 - 升压转换器和脉宽调制（PWM）信号控制器。 包括开关晶体管和反馈电阻器的降压 - 升压转换器接收从输入电源电路输出的电流信号，并驱动具有驱动信号的LED。 PWM信号控制器根据驱动信号输出PWM信号，以依次导通和关断开关晶体管。 反馈电阻器的一端耦合到LED，并且PWM信号控制器的浮动接地端子耦合到开关晶体管和反馈电阻器的另一端。 因此，AC-DC两用LED驱动电路能够在不连接外部光电耦合器的情况下动态调整PWM信号的占空比。

公开(公告)号：US09136699B2

公开(公告)日：2015-09-15

申请号：US13471660

申请日：2012-05-15

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

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

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

CPC分类号： H02H9/001 ,  H05B33/0884

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08575901B2

公开(公告)日：2013-11-05

申请号：US13410034

申请日：2012-03-01

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

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

IPC分类号： G05F1/40 ,  H05B41/36

CPC分类号： H05B33/0806 ,  H05B39/044 ,  Y02B20/348

摘要： 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.

摘要翻译： 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：US5165654A

公开(公告)日：1992-11-24

申请号：US757828

申请日：1991-09-11

申请人： Hsing-Fu Liu

发明人： Hsing-Fu Liu

IPC分类号： F16K31/528 ,  F24C3/12

CPC分类号： F16K31/5284 ,  F24C3/12

摘要： A gas control valve including a body having a throat formed in a bore, a post slidably received in the bore and including a plug, a pin laterally engaged on an upper portion of the post, and a spring for biasing the post so that the plug can be separated from the throat and so that gas may flow through the throat, and a guide fixed in top of the bore and having two inclined surfaces, the ends of the pin are slidable along the inclined surfaces, the plug can engage with the throat when the knob is pushed toward the body so that gas is prevented from flowing through the throat.

摘要翻译： 一种气体控制阀，包括具有形成在孔中的喉部的主体，可滑动地容纳在孔中并包括插头的柱，横向接合在柱的上部的销以及用于偏置柱的弹簧，使得插头 可以从喉部分离，使得气体可以流过喉部，并且导向件固定在孔的顶部并且具有两个倾斜表面，销的端部沿着倾斜表面可滑动，塞子可以与喉部接合 当把手推向身体时，防止气体流过喉咙。

公开(公告)号：US20130009616A1

公开(公告)日：2013-01-10

申请号：US13410034

申请日：2012-03-01

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

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

IPC分类号： G05F1/455

CPC分类号： H05B33/0806 ,  H05B39/044 ,  Y02B20/348

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： H05B37/00

CPC分类号： H02H9/001 ,  H05B33/0884

摘要： 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.

摘要翻译： 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：US08422253B2

公开(公告)日：2013-04-16

申请号：US12970029

申请日：2010-12-16

申请人： Lon-Kou Chang ,  Chang-Yu Wu ,  Hsing-Fu Liu

发明人： Lon-Kou Chang ,  Chang-Yu Wu ,  Hsing-Fu Liu

IPC分类号： H02M3/335

CPC分类号： H02M1/08 ,  H02M3/33523

摘要： A circuit regulator is used to generate a pulse-width-modulation signal, so as to control a power to be selectively input or not input to a primary side of a switching power supply. The circuit regulator includes a synchronous timing pulse generation circuit, outputs a starting pulse after performing signal process of time delay, timing pulse regulation, and synchronization control on a pulse-width-modulation signal and a discharging time signal of a secondary side, and accordingly effectively controls a pulse starting time of the pulse-width-modulation signal. Therefore, the synchronous timing pulse generation circuit can be applied to the circuit regulator, so as to further effectively prevent an inductor current of the switching power supply from entering a Continuous Conduction Mode (CCM).

摘要翻译： 电路调节器用于产生脉冲宽度调制信号，以便控制有选择地输入或不输入到开关电源的初级侧的功率。 电路调节器包括同步定时脉冲发生电路，对次级侧的脉宽调制信号和放电时间信号进行时间延迟，定时脉冲调整，同步控制等信号处理后的起始脉冲输出 有效地控制脉冲宽度调制信号的脉冲开始时间。 因此，可以将同步定时脉冲发生电路应用于电路调节器，以进一步有效地防止开关电源的电感电流进入连续导通模式（CCM）。

公开(公告)号：US07715216B2

公开(公告)日：2010-05-11

申请号：US12098512

申请日：2008-04-07

申请人： Hsing-Fu Liu ,  Chin Sun ,  Chih-Yu Wu

发明人： Hsing-Fu Liu ,  Chin Sun ,  Chih-Yu Wu

IPC分类号： H02M7/04 ,  H02M7/68

CPC分类号： H02M3/155 ,  H02M7/155 ,  H02M7/2176

摘要： A powering circuit of an AC-DC converter, for converting a high AC input voltage into a low DC output voltage to provide a load voltage in a stable DC bias range, includes a rectifier, a sensing circuit, a control switching circuit, and a voltage regulating capacitor. The rectifier has a primary side coupled to an AC power supply and a secondary side for outputting a DC power supply. The sensing circuit compares the AC input voltage with a preset reference voltage, and turns on a second switch in the control switching circuit when the AC input voltage is lower than the reference voltage, thereby providing a low DC output voltage. The control switching circuit sustains the DC output voltage in a stable DC bias range. Therefore, in addition to reducing the power consumption of the second switch, this circuit structure is simple and can achieve the purpose of circuit integration.

摘要翻译： AC-DC转换器的供电电路，用于将高交流输入电压转换成低直流输出电压以提供稳定的直流偏置范围内的负载电压，包括整流器，感测电路，控制开关电路和 调压电容器。 整流器具有耦合到AC电源的初级侧和用于输出DC电源的次级侧。 感测电路将交流输入电压与预设参考电压进行比较，当交流输入电压低于参考电压时，接通控制开关电路中的第二开关，从而提供低直流输出电压。 控制开关电路在稳定的直流偏置范围内维持直流输出电压。 因此，除了降低第二开关的功耗外，该电路结构简单，可以达到电路集成的目的。

公开(公告)号：US20070131945A1

公开(公告)日：2007-06-14

申请号：US11447588

申请日：2006-06-05

申请人： Rong-Tsung Lin ,  Hsing-Fu Liu

发明人： Rong-Tsung Lin ,  Hsing-Fu Liu

IPC分类号： H01L33/00

CPC分类号： H05B33/0824 ,  H05B33/0821 ,  H05B37/036

摘要： This invention discloses a light-emitting semiconductor device with open-bypass function, which comprises two terminals providing a current, at least one LED unit and a bypass switch. Electrodes of the LED unit and the bypass switch are properly connected to the terminals, so that the bypass switch will provide an alternative path for current flowing through if the circuit of the LEDs unit between two terminals is open.

摘要翻译： 本发明公开了一种具有开路旁路功能的发光半导体器件，其包括提供电流，至少一个LED单元和旁路开关的两个端子。 LED单元的电极和旁路开关正确连接到端子，以便如果两个端子之间的LED单元的电路打开，旁路开关将为流过的电流提供替代路径。