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91. 发明授权

US07531970B2 Power source driving circuits and controllers thereof 有权
标题翻译：电源驱动电路及其控制器
公开(公告)号：US07531970B2
公开(公告)日：2009-05-12
申请号：US11385536
申请日：2006-03-20
申请人： Chung-Che Yu , Chien-Pang Hung , Chih-Shun Lee , Chin-Fa Kao
发明人： Chung-Che Yu , Chien-Pang Hung , Chih-Shun Lee , Chin-Fa Kao
IPC分类号： G05F1/00
CPC分类号： H05B41/2828 , H05B41/2824 , H05B41/2855 , H05B41/2856 , Y02B20/186 , Y10S315/07
摘要： A controller for a driving circuit of power source comprises a frequency generator, a pulse width modulator, and a driving device. The frequency generator comprises a latch circuit. The frequency generator provides a pulse signal at a first frequency after the controller is started. After the frequency generator receives an indicating signal, the frequency generator changes the frequency of pulse signal from the first frequency to a second frequency and locks the frequency of pulse signal at the second frequency. The pulse width modulator provides a PWM signal according to the pulse signal and a feedback signal which indicates a status of electric power supply of the driving circuit. The driving device controls semiconductor switches according to the PWM signal.
摘要翻译：用于电源驱动电路的控制器包括频率发生器，脉宽调制器和驱动装置。频率发生器包括一个锁存电路。频率发生器在控制器启动后以第一个频率提供脉冲信号。在频率发生器接收到指示信号之后，频率发生器将脉冲信号的频率从第一频率改变到第二频率，并将脉冲信号的频率锁定在第二频率。脉冲宽度调制器根据脉冲信号提供PWM信号，并提供指示驱动电路的电力供应状态的反馈信号。驱动装置根据PWM信号控制半导体开关。

92. 发明申请

US20070126373A1 Power source driving circuits and controllers thereof 有权
标题翻译：电源驱动电路及其控制器
公开(公告)号：US20070126373A1
公开(公告)日：2007-06-07
申请号：US11385536
申请日：2006-03-20
申请人： Chung-Che Yu , Chien-Pang Hung , Chih-Shun Lee , Chin-Fa Kao
发明人： Chung-Che Yu , Chien-Pang Hung , Chih-Shun Lee , Chin-Fa Kao
IPC分类号： H05B41/36
CPC分类号： H05B41/2828 , H05B41/2824 , H05B41/2855 , H05B41/2856 , Y02B20/186 , Y10S315/07
摘要： A controller for a driving circuit of power source comprises a frequency generator, a pulse width modulator, and a driving device. The frequency generator comprises a latch circuit. The frequency generator provides a pulse signal at a first frequency after the controller is started. After the frequency generator receives an indicating signal, the frequency generator changes the frequency of pulse signal from the first frequency to a second frequency and locks the frequency of pulse signal at the second frequency. The pulse width modulator provides a PWM signal according to the pulse signal and a feedback signal which indicates a status of electric power supply of the driving circuit. The driving device controls semiconductor switches according to the PWM signal.
摘要翻译：用于电源驱动电路的控制器包括频率发生器，脉宽调制器和驱动装置。频率发生器包括一个锁存电路。频率发生器在控制器启动后以第一个频率提供脉冲信号。在频率发生器接收到指示信号之后，频率发生器将脉冲信号的频率从第一频率改变到第二频率，并将脉冲信号的频率锁定在第二频率。脉冲宽度调制器根据脉冲信号提供PWM信号，并提供指示驱动电路的电力供应状态的反馈信号。驱动装置根据PWM信号控制半导体开关。

93. 发明申请

US20070029946A1 APPARATUS OF LIGHT SOURCE AND ADJUSTABLE CONTROL CIRCUIT FOR LEDs 有权
标题翻译： LED光源和可调光控制电路的设计
公开(公告)号：US20070029946A1
公开(公告)日：2007-02-08
申请号：US11164316
申请日：2005-11-17
申请人： Chung-Che Yu , Li Lee
发明人： Chung-Che Yu , Li Lee
IPC分类号： H05B41/36
CPC分类号： H05B33/0857 , H05B33/0818
摘要： A control circuit for LEDs is adapted for controlling brightness of a plurality of LEDs as light source in an LCD. The control circuit comprises a control pulse generator and a plurality of LED direct current supplies. The control pulse generator is used for receiving a brightness adjusting signal and generating a plurality of brightness control pulse signals having the same frequency but different phases according to the brightness control signals. The work cycle of the brightness control pulse signal varies in a predetermined range according to the brightness control signal. The LED direct current provider is coupled to the control pulse generator to drive the corresponding LED according to the brightness pulse signal.
摘要翻译：用于LED的控制电路适于控制作为LCD中的光源的多个LED的亮度。控制电路包括控制脉冲发生器和多个LED直流电源。控制脉冲发生器用于接收亮度调节信号，并根据亮度控制信号产生具有相同频率但不同相位的多个亮度控制脉冲信号。亮度控制脉冲信号的工作周期根据亮度控制信号在预定范围内变化。 LED直流提供器耦合到控制脉冲发生器，以根据亮度脉冲信号驱动相应的LED。

94. 发明授权

US08492993B2 LED driving circuit and power converting circuit 有权
标题翻译： LED驱动电路和电源转换电路
公开(公告)号：US08492993B2
公开(公告)日：2013-07-23
申请号：US12906145
申请日：2010-10-18
申请人： Shian-Sung Shiu , Chen-Hsung Wang , Chung-Che Yu
发明人： Shian-Sung Shiu , Chen-Hsung Wang , Chung-Che Yu
IPC分类号： G05F1/00 , H05B37/02
CPC分类号： H05B33/089
摘要： A power converting circuit having the function of circuit detecting is provided. The power converting circuit has a transistor, a controller and a detecting circuit. The transistor receives an input voltage. The controller is coupled to a control end of the transistor to control the conducting state of the transistor so as to stabilize the output of the power converting circuit. The detecting circuit detects at least one of the control end and the low voltage end of the transistor, and generates a state signal when the detected voltage of any one of the control end and the low voltage end does not fall within a corresponding predetermined voltage range. The state signal is utilized for stopping a power circuit which provides the input voltage providing the input voltage. In addition, a light emitting diode driving circuit having the function of circuit detecting is also provided.
摘要翻译：提供具有电路检测功能的电力转换电路。功率转换电路具有晶体管，控制器和检测电路。晶体管接收输入电压。控制器耦合到晶体管的控制端，以控制晶体管的导通状态，以稳定功率转换电路的输出。检测电路检测晶体管的控制端和低压端中的至少一个，并且当控制端和低电压端中的任何一个的检测电压不在相应的预定电压范围内时，产生状态信号。状态信号用于停止提供输入电压的输入电压的电源电路。此外，还提供了具有电路检测功能的发光二极管驱动电路。

95. 发明授权

US08461769B2 LED driving circuit, LED driving control unit and transistor switch module thereof 有权
标题翻译： LED驱动电路，LED驱动控制单元及其晶体管开关模块
公开(公告)号：US08461769B2
公开(公告)日：2013-06-11
申请号：US12494832
申请日：2009-06-30
申请人： Shian-Sung Shiu , Chung-Che Yu , JuanJuan Liu
发明人： Shian-Sung Shiu , Chung-Che Yu , JuanJuan Liu
IPC分类号： H05B39/04
CPC分类号： H05B33/0845
摘要： An LED driving circuit is used for dimming by switching between an operating current and a maintaining current or by voltage clamping of a source/drain of MOSFET that is coupled to the LED module. When the LED module is dimmed off, the voltage across the LED module can be kept at a value around a lighting threshold voltage of the LED module that is a minimum voltage for lighting the LED module. Therefore, a voltage difference between the drain and the source of MOSFET coupled to the LED module is smaller than that in the conventional arts. Hence, a withstand voltage of MOSFET can be reduced, and cost of the LED driving circuit as well as the power consumption of MOSFET can be lessened, thereby improving integral efficiency of the circuit.
摘要翻译： LED驱动电路用于通过在工作电流和维持电流之间进行调光，或通过耦合到LED模块的MOSFET的源极/漏极的电压钳位来进行调光。当LED模块变暗时，LED模块上的电压可以保持在LED模块的照明阈值电压附近的值，LED模块的亮度阈值电压是用于点亮LED模块的最小电压。因此，耦合到LED模块的MOSFET的漏极和源极之间的电压差小于常规技术中的电压差。因此，可以降低MOSFET的耐压，并且可以降低LED驱动电路的成本以及MOSFET的功耗，从而提高电路的积分效率。

96. 发明授权

US08310169B2 Power conversion driving circuit and fluorescent lamp driving circuit 有权
标题翻译：电源转换驱动电路和荧光灯驱动电路
公开(公告)号：US08310169B2
公开(公告)日：2012-11-13
申请号：US12829363
申请日：2010-07-01
申请人： Chung-Che Yu
发明人： Chung-Che Yu
IPC分类号： H05B41/16 , H05B41/24 , H05B41/36 , H05B37/00 , H05B39/00
CPC分类号： H05B33/089 , H05B41/2985
摘要： A power conversion driving circuit is provided. The power conversion drive circuit includes a converting circuit, a control circuit and a load circuit. The converting circuit is coupled to an input voltage. The control circuit is coupled to the converting circuit for controlling the converting circuit to convert the input voltage to an output voltage. The load circuit includes a load detecting unit and a load. The load is coupled to the output voltage, and the load detecting unit is coupled to a detecting voltage source. The load detecting unit generates a load detecting signal to re-start the control circuit when the load circuit is inserted into the power conversion driving circuit.
摘要翻译：提供电力转换驱动电路。电力转换驱动电路包括转换电路，控制电路和负载电路。转换电路耦合到输入电压。控制电路耦合到转换电路，用于控制转换电路将输入电压转换为输出电压。负载电路包括负载检测单元和负载。负载耦合到输出电压，并且负载检测单元耦合到检测电压源。当负载电路插入电力转换驱动电路时，负载检测单元产生负载检测信号以重新启动控制电路。

97. 发明申请

US20120235570A1 LED DRIVING CIRCUIT AND LED DRIVING CONTROLLER 有权
标题翻译： LED驱动电路和LED驱动控制器
公开(公告)号：US20120235570A1
公开(公告)日：2012-09-20
申请号：US13354343
申请日：2012-01-20
申请人： Chung-Che Yu
发明人： Chung-Che Yu
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B33/0848
摘要： The present invention discloses an LED driving circuit and controller, capable of maintaining an average value of a current flowing through an LED module at a predetermined current value. The LED driving circuit and controller compensates influences of any factors deviating the average value of the current flowing through the LED module by modulating a period of constant on time or constant off time, or by modulating the determining value(s) of current peak value and/or current valley value according to a difference between an actual average value and the preset current value.
摘要翻译：本发明公开了一种LED驱动电路和控制器，其能够将流过LED模块的电流的平均值保持在预定电流值。 LED驱动电路和控制器通过调制恒定导通时间或恒定关闭时间的周期，或通过调制电流峰值的确定值来补偿影响流过LED模块的电流的平均值的任何因素的影响， /或当前谷值根据实际平均值和预置电流值之间的差值。

98. 发明授权

US08143797B2 DC/AC inverter 有权
标题翻译： DC / AC变频器
公开(公告)号：US08143797B2
公开(公告)日：2012-03-27
申请号：US13042472
申请日：2011-03-08
申请人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
发明人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
IPC分类号： H05B37/02
CPC分类号： H02M7/53871 , H05B41/2825 , H05B41/2828 , Y02B20/186 , Y02B70/1441
摘要： A direct current to alternating current (DC/AC) inverter is for driving a fluorescent lamp through quasi sine wave generation. The DC/AC inverter includes a frequency generator for generating a reference signal and a modulation signal, a pulse width modulator coupled to the frequency generator for providing a pulse width modulation signal according to said modulation signal, a driver circuit coupled to the pulse width modulator for generating at least one driving signal according to the pulse width modulation signal and the reference signal, a half bridge power switch unit coupled to the driver circuit, and a resonant tank coupled to the fluorescent lamp for outputting a quasi sine wave to drive the fluorescent lamp.
摘要翻译：直流到交流（DC / AC）的逆变器用于通过准正弦波产生来驱动荧光灯。 DC / AC逆变器包括用于产生参考信号和调制信号的频率发生器，耦合到频率发生器的脉冲宽度调制器，用于根据所述调制信号提供脉宽调制信号;驱动器电路，耦合到脉宽调制器用于根据脉宽调制信号和参考信号产生至少一个驱动信号，耦合到驱动电路的半桥功率开关单元和耦合到荧光灯的谐振槽，用于输出准正弦波以驱动荧光灯。

99. 发明授权

US07977891B2 LED driving circuit 失效
标题翻译： LED驱动电路
公开(公告)号：US07977891B2
公开(公告)日：2011-07-12
申请号：US12379841
申请日：2009-03-03
申请人： Shian-Sung Shiu , Chung-Che Yu
发明人： Shian-Sung Shiu , Chung-Che Yu
IPC分类号： G05F1/00
CPC分类号： H05B33/0812 , Y02B20/345
摘要： An LED driving circuit is provided for driving an LED module, comprising a transistor switch and a feedback controller. The transistor switch has a control terminal, a first terminal, and a second terminal. The first terminal is coupled to the LED module and the control terminal receives a control signal for controlling a current passing through the transistor switch. The feedback controller receives a reference voltage and a current detecting signal indicative of the magnitude of the current and generates the control signal accordingly. The feedback controller is connected to a driving power source with level higher than the level of the first terminal of the transistor switch. Hence, the maximum level of an adjustable range of the control signal is higher than the first terminal of the transistor switch.
摘要翻译：提供LED驱动电路用于驱动LED模块，包括晶体管开关和反馈控制器。晶体管开关具有控制端子，第一端子和第二端子。第一端子耦合到LED模块，并且控制端子接收用于控制通过晶体管开关的电流的控制信号。反馈控制器接收指示电流大小的参考电压和电流检测信号，并相应地产生控制信号。反馈控制器连接到电平高于晶体管开关的第一端子电平的驱动电源。因此，控制信号的可调范围的最大电平高于晶体管开关的第一端。

100. 发明授权

US07952296B2 Feedback circuit for DC/AC inverter 有权
标题翻译： DC / AC逆变器的反馈电路
公开(公告)号：US07952296B2
公开(公告)日：2011-05-31
申请号：US12693401
申请日：2010-01-25
申请人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
发明人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
IPC分类号： H05B37/02
CPC分类号： H02M7/53871 , H05B41/2825 , H05B41/2828 , Y02B20/186 , Y02B70/1441
摘要： A feedback circuit is utilized in a DC/AC inverter having a first power switch and a second power switch for driving a fluorescent lamp. The feedback circuit includes a protection circuit for disabling the first power switch and the second power switch when no fluorescent lamp is electrically connected, a first capacitor having a first terminal electrically connected to an output of the DC/AC inverter, a second capacitor having a first terminal electrically connected to a ground, and a second terminal electrically connected to a second terminal of the first capacitor, a diode having an anode electrically connected to the second terminals of the first and second capacitors, and a cathode electrically connected to the protection circuit, and a first resistor having a first terminal electrically connected to the cathode of the diode, and a second terminal electrically connected to the ground.
摘要翻译：在具有用于驱动荧光灯的第一电源开关和第二电源开关的DC / AC逆变器中采用反馈电路。所述反馈电路包括用于在没有荧光灯电连接时禁用所述第一电源开关和所述第二电源开关的保护电路，具有电连接到所述DC / AC逆变器的输出的第一端子的第一电容器，具有电连接到地的第一端子和与第一电容器的第二端子电连接的第二端子，具有电连接到第一和第二电容器的第二端子的阳极的二极管，以及电连接到保护电路的阴极以及第一电阻器，其具有电连接到二极管的阴极的第一端子和电连接到地的第二端子。

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