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    • 71. 发明授权
    • Load driving circuit with charge spike protection
    • 负载驱动电路带充电尖峰保护
    • US09232605B2
    • 2016-01-05
    • US13360077
    • 2012-01-27
    • Shian-Sung ShiuChia-Ming Chan
    • Shian-Sung ShiuChia-Ming Chan
    • H05B39/00H05B33/08
    • H05B33/089Y02B20/341
    • A load driving circuit comprises a converting circuit, a converting controller, a load driving modulator, and a charge spike protection circuit. The converting circuit is adapted to be coupled to an output power source and supplies a driving power source to drive a load. The converting circuit has an output capacitance coupled to an output end thereof. The converting controller controls an amount of the driving power source responsive to a current or a voltage of the load. The load driving modulator and the load, connected in series, are coupled to the output end and so the load driving modulator adjusts an electronic state of the load. The charge spike protection circuit is coupled to the output capacitance and at least one connecting node of the load and the load driving modulator to provide a unidirectional charge release path to the output capacitance.
    • 负载驱动电路包括转换电路,转换控制器,负载驱动调制器和充电尖峰保护电路。 转换电路适于耦合到输出电源并提供驱动电源以驱动负载。 转换电路具有耦合到其输出端的输出电容。 转换控制器响应于负载的电流或电压来控制驱动电源的量。 串联连接的负载驱动调制器和负载耦合到输出端,因此负载驱动调制器调整负载的电子状态。 电荷尖峰保护电路耦合到输出电容和负载和负载驱动调制器的至少一个连接节点,以向输出电容提供单向电荷释放路径。
    • 72. 发明授权
    • LED driving circuit and backlight module
    • LED驱动电路和背光模组
    • US08427073B2
    • 2013-04-23
    • US12786823
    • 2010-05-25
    • Wei Liang KungChen-Hsung WangShian-Sung Shiu
    • Wei Liang KungChen-Hsung WangShian-Sung Shiu
    • H05B37/02
    • G09G3/3406G09G2320/062G09G2320/0633H05B33/0827
    • A LED driving circuit and a backlight module using the same are disclosed. The LED driving circuit comprises a LED module and a current controlling unit. The LED module has a plurality of the LED strings, each having a driving terminal. The current controlling unit has a plurality of current balancing terminal coupled to the driving terminal, for balancing the currents flowing through the LED strings. The current controlling unit receives a mode switch signal, controls the amount of the currents of the LED strings about a first current value when the mode switch signal represent a first mode, and controls the amount of the currents of the LED strings about a second current value when the mode switch signal represent a second mode.
    • 公开了一种LED驱动电路和使用其的背光模块。 LED驱动电路包括LED模块和电流控制单元。 LED模块具有多个LED串,每个LED串具有驱动端子。 电流控制单元具有耦合到驱动端子的多个电流平衡端子,用于平衡流过LED串的电流。 电流控制单元接收模式切换信号,当模式切换信号表示第一模式时,控制LED串的电流量约为第一电流值,并且控制LED串的电流量约为第二电流 当模式切换信号表示第二模式时的值。
    • 73. 发明授权
    • Charge pump circuit with current detecting and method thereof
    • 电流检测电荷泵电路及其方法
    • US08248045B2
    • 2012-08-21
    • US12840637
    • 2010-07-21
    • Shian-Sung Shiu
    • Shian-Sung Shiu
    • G05F1/00H02M7/537
    • H02M3/07H02M2001/0087H05B33/0818Y02B20/341Y02B20/347
    • The present invention relates to a charge pump circuit with current detecting and a method thereof. The current detecting charge pump circuit includes a controlled current source, a load circuit which electrically connects to the charge pump circuit unit, and is driven by the charge pump circuit unit to generate a load current. A detecting circuit unit electrically connects to the load circuit, and produces a feedback signal according to the load circuit. A feedback circuit unit which electrically connects to the detecting circuit unit, receives the feedback signal, and adjusts a current of the controlled current source according to the feedback signal. The charge pump circuit also includes a protecting circuit unit which is able to detect feedback signal to protect the circuit according to the feedback signal.
    • 本发明涉及具有电流检测的电荷泵电路及其方法。 电流检测电荷泵电路包括受控电流源,电连接到电荷泵电路单元的负载电路,并由电荷泵电路单元驱动以产生负载电流。 检测电路单元电连接到负载电路,并根据负载电路产生反馈信号。 电连接到检测电路单元的反馈电路单元接收反馈信号,并根据反馈信号调节受控电流源的电流。 电荷泵电路还包括保护电路单元,其能够根据反馈信号检测反馈信号以保护电路。
    • 74. 发明申请
    • LED DRIVING CIRCUIT, LED DRIVING CONTROL UNIT AND TRANSISTOR SWITCH MODULE THEREOF
    • LED驱动电路,LED驱动控制单元及其晶体管开关模块
    • US20090322235A1
    • 2009-12-31
    • US12494832
    • 2009-06-30
    • Shian-Sung ShiuChung-Che YuJuanJuan Liu
    • Shian-Sung ShiuChung-Che YuJuanJuan Liu
    • H05B37/02
    • H05B33/0845
    • 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.
    • 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。
    • 78. 发明申请
    • LED DRIVING CIRCUIT AND POWER CONVERTING CIRCUIT
    • LED驱动电路和电源转换电路
    • US20110210682A1
    • 2011-09-01
    • US12906145
    • 2010-10-18
    • Shian-Sung ShiuChen-Hsung WangChung-Che Yu
    • Shian-Sung ShiuChen-Hsung WangChung-Che Yu
    • H05B37/02
    • H05B33/089
    • 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.
    • 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。