公开(公告)号：US20130271006A1

公开(公告)日：2013-10-17

申请号：US13567101

申请日：2012-08-06

申请人： Shian-Sung Shiu ,  Chia-Ming Chan ,  Li-Min Lee ,  Chung-Che Yu

发明人： Shian-Sung Shiu ,  Chia-Ming Chan ,  Li-Min Lee ,  Chung-Che Yu

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  Y02B20/341

摘要： An LED driving circuit comprises a converting circuit, a current regulator, a converting controller and a low dimming protection blocking circuit, is disclosed. The converting circuit is adapted to perform a power conversion to provide a driving voltage for lighting an LED module. The current regulator is coupled to the LED module for regulating a current flowing through the LED module. The current regulator conducts and stops conducting the current flowing through the LED module according to a dimming signal, and executes a protection process when the LED module operates abnormal. The converting controller controls the power conversion of the converting circuit according to a voltage level of at least one connection node of the current regulator and the LED module. The low dimming protection blocking circuit stops the protection process of the current regulator when the driving voltage is lower than a predetermined value.

摘要翻译： LED驱动电路包括转换电路，电流调节器，转换控制器和低调光保护阻断电路。 转换电路适于执行功率转换以提供用于点亮LED模块的驱动电压。 电流调节器耦合到LED模块，用于调节流过LED模块的电流。 电流调节器根据调光信号进行并停止导通LED模块的电流，并在LED模块运行异常时执行保护过程。 转换控制器根据电流调节器和LED模块的至少一个连接节点的电压电平来控制转换电路的功率转换。 当驱动电压低于预定值时，低调光保护阻断电路停止电流调节器的保护处理。

公开(公告)号：US08446098B2

公开(公告)日：2013-05-21

申请号：US13244653

申请日：2011-09-25

申请人： Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Xi Tu ,  Ying Wang

发明人： Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Xi Tu ,  Ying Wang

IPC分类号： H05B41/16

CPC分类号： H05B33/0815 ,  H05B33/0827

摘要： An LED driving circuit includes a first and a second LED modules, a first and a second switching converters, an extreme voltage detecting and selecting circuit, a current balance circuit and a controller. The first switching converter transforms electric power of an input power supply into a first output voltage for lighting the first LED module. The second switching converter transforms electric power of the input power supply into a second output voltage for lighting the second LED module. The current balance circuit balances the currents flowing through the first and the second LED modules. The extreme voltage detecting and selecting circuit detects the first and the second LED modules and selects to output one of detecting results. The controller controls the transforming of the first switching converter and the second switching converter to light the first and the second LED modules in response to the outputted detecting result.

摘要翻译： LED驱动电路包括第一和第二LED模块，第一和第二开关转换器，极值电压检测和选择电路，电流平衡电路和控制器。 第一开关转换器将输入电源的电力变换为第一输出电压以点亮第一LED模块。 第二开关转换器将输入电源的电力转换成用于照亮第二LED模块的第二输出电压。 电流平衡电路平衡流经第一和第二LED模块的电流。 极端电压检测和选择电路检测第一和第二LED模块，并选择输出检测结果之一。 控制器控制第一开关转换器和第二开关转换器的变换，以响应于输出的检测结果点亮第一和第二LED模块。

公开(公告)号：US20130121037A1

公开(公告)日：2013-05-16

申请号：US13447285

申请日：2012-04-16

申请人： Ke Peng ,  Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu

发明人： Ke Peng ,  Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu

IPC分类号： H02M3/335

CPC分类号： H02H7/10 ,  H02M1/36 ,  H02M3/335 ,  H02M3/3376 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

摘要： A current detecting circuit detects a resonant current in a primary side of a resonant converting circuit to generate a current detecting signal. An output detecting circuit generates a feedback signal according to the output voltage. A resonant controller generates a clock signal and adjusts an operating frequency of the clock signal in response to the feedback signal for modulating the output voltage of the resonant circuit. The resonant controller includes a resonance deviation protection unit which detects the current detecting signal according to a phase of the clock signal to determine whether the resonant circuit enters a region of zero current switching or not. When the resonant circuit enters the region of zero current switching, the resonant controller executes a corresponding protection process in response to that the resonant controller operates in a starting mode or a normal operating mode.

摘要翻译： 电流检测电路检测谐振转换电路的初级侧的谐振电流以产生电流检测信号。 输出检测电路根据输出电压产生反馈信号。 谐振控制器响应于用于调制谐振电路的输出电压的反馈信号而产生时钟信号并调整时钟信号的工作频率。 谐振控制器包括谐振偏差保护单元，其根据时钟信号的相位检测电流检测信号，以确定谐振电路是否进入零电流切换的区域。 当谐振电路进入零电流切换区域时，谐振控制器响应于谐振控制器在启动模式或正常工作模式下运行而执行相应的保护处理。

公开(公告)号：US20130121036A1

公开(公告)日：2013-05-16

申请号：US13412636

申请日：2012-03-06

申请人： Ke Peng ,  Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu

发明人： Ke Peng ,  Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu

IPC分类号： H02M3/335

CPC分类号： H02M3/3376 ,  H02M1/32 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491 ,  Y02P80/112

摘要： The resonant converting circuit comprises a resonant circuit, a current detecting circuit and the resonant controller. The resonant controller controls a power conversion of the resonant circuit for converting an input voltage into an output voltage and the resonant controller comprises an over current judgment unit and an over current protection unit. The over current judgment unit determines whether the resonant current is higher than an over current value according to a current detecting signal generated by the current detecting circuit. The over current protection unit generates a protection signal in response to a determined result of the over current judgment unit and an indication signal indicative of an operating state of the resonant controller. The resonant controller executes a corresponding protecting process in response to the protection signal.

摘要翻译： 谐振转换电路包括谐振电路，电流检测电路和谐振控制器。 谐振控制器控制用于将输入电压转换为输出电压的谐振电路的功率转换，并且谐振控制器包括过电流判断单元和过电流保护单元。 过电流判断单元根据由电流检测电路产生的电流检测信号来判定谐振电流是否高于过电流值。 过电流保护单元响应于过电流判断单元的确定结果和表示谐振控制器的工作状态的指示信号产生保护信号。 谐振控制器响应于保护信号执行相应的保护处理。

公开(公告)号：US20110248675A1

公开(公告)日：2011-10-13

申请号：US12906142

申请日：2010-10-18

申请人： Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Ke Peng

发明人： Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Ke Peng

IPC分类号： H02J7/00

CPC分类号： H01M10/44 ,  H01M10/4207 ,  H02J7/0016

摘要： In the related art, the measurement error due to the internal resistance of the battery is not considered in the battery balance method, such that the battery balance is not accurate, or the battery balance process is frequently started and stopped. In exemplary embodiments of the invention, detecting battery voltage and balancing battery voltage are performed in different time, such that the difference of charge current/discharge current among the batteries due to the battery voltage balance process do not affect the battery voltage detecting.

摘要翻译： 在现有技术中，在电池平衡方法中没有考虑由于电池的内部电阻引起的测量误差，使得电池平衡不准确，或者电池平衡过程频繁地开始和停止。 在本发明的示例性实施例中，在不同的时间内执行检测电池电压和平衡电池电压，使得由于电池电压平衡处理而导致的电池之间的充电电流/放电电流的差异不影响电池电压检测。

公开(公告)号：US20110215780A1

公开(公告)日：2011-09-08

申请号：US12906137

申请日：2010-10-18

申请人： Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Ji-Ming Chen

发明人： Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Ji-Ming Chen

IPC分类号： G05F1/10

CPC分类号： G05F1/10

摘要： A de-glitch switching converting circuit and a controller thereof are provided. In the embodiment of the invention, the circuit can filter noises with high frequency by way of time judgment, so as to avoid the erroneous operation of the controller affecting the stability of the output voltage or the output current. Compared with the method of using low-pass filters with large capacitors to filter noises, highly increasing the cost of the circuit is unnecessary in the embodiment of the invention. The circuit in the embodiment of the invention also has the capability for filtering noises with high amplitudes. In addition, by setting suitable parameters, the circuit in the embodiment of the invention can also avoid affecting the transient response of the circuit while filtering noises.

摘要翻译： 提供去毛刺切换转换电路及其控制器。 在本发明的实施例中，电路可以通过时间判断过滤高频噪声，以避免控制器误操作，影响输出电压或输出电流的稳定性。 与使用具有大电容器的低通滤波器对噪声进行滤波的方法相比，在本发明的实施例中不需要大量增加电路的成本。 本发明实施例中的电路还具有以高幅度对噪声进行滤波的能力。 此外，通过设定适当的参数，本发明的实施例中的电路也可以避免在过滤噪声时影响电路的瞬态响应。

公开(公告)号：US20070115057A1

公开(公告)日：2007-05-24

申请号：US11308019

申请日：2006-03-03

申请人： Chung-Che Yu ,  Shian-Sung Shiu ,  Li-Min Lee

发明人： Chung-Che Yu ,  Shian-Sung Shiu ,  Li-Min Lee

IPC分类号： H03F3/45

CPC分类号： H03F3/45197 ,  H03F3/45632 ,  H03F2203/45101 ,  H03F2203/45352 ,  H03F2203/45641 ,  H03F2203/45646 ,  H03F2203/45681 ,  H03F2203/45726 ,  H03G1/0088

摘要： A variable gain device having higher linearity and wider gain range is provided. The variable gain device includes a transduction unit for generating an output current, a control unit for adjusting the current gain of the gain amplifying unit according to a gain control signal, a gain amplifying unit receiving the current signal and generating a gain adjustable current according to the current gain of the control unit, an output DC level control unit controlling the DC level of the output signal of the variable gain device, and an output unit generating an output signal according to the signals output by the output DC level control unit and the gain amplifying unit.

摘要翻译： 提供具有更高线性度和更宽增益范围的可变增益器件。 可变增益装置包括用于产生输出电流的转换单元，用于根据增益控制信号调整增益放大单元的电流增益的控制单元，接收当前信号的增益放大单元，并根据 控制单元的当前增益，控制可变增益装置的输出信号的直流电平的输出直流电平控制单元和根据由输出直流电平控制单元输出的信号产生输出信号的输出单元， 增益放大单元。

公开(公告)号：US07129878B1

公开(公告)日：2006-10-31

申请号：US11155708

申请日：2005-06-16

申请人： Shian Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu

发明人： Shian Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu

IPC分类号： H03M1/66

CPC分类号： H03M1/0612 ,  H03M1/785

摘要： A digital to analog converter for an analog Liquid Crystal Display (LCD) includes a digital inlet, a latching circuitry, a voltage level shifter circuitry, a switching circuitry, and a resistance network with a resistance compensatory circuitry. The resistance network with the resistance compensatory circuitry is electrically connecting with the switching circuitry and adapted to regulate a pattern of the analog output signal so as to optimize the analog output signal. Specifically, the resistance network with a resistance compensatory circuitry is to produce the best linear conversion from the digital signal to the analog signal for use by the LCD.

摘要翻译： 用于模拟液晶显示器（LCD）的数模转换器包括数字入口，锁存电路，电压电平移位器电路，开关电路和具有电阻补偿电路的电阻网络。 具有电阻补偿电路的电阻网络与开关电路电连接并且适于调节模拟输出信号的模式，以优化模拟输出信号。 具体来说，具有电阻补偿电路的电阻网络是产生从数字信号到模拟信号的最佳线性转换，供LCD使用。

公开(公告)号：US20140062428A1

公开(公告)日：2014-03-06

申请号：US13604635

申请日：2012-09-06

申请人： Shian-Sung Shiu ,  Ke Peng ,  Li-Min Lee ,  Ying Wang ,  Yong Huang

发明人： Shian-Sung Shiu ,  Ke Peng ,  Li-Min Lee ,  Ying Wang ,  Yong Huang

IPC分类号： G05F1/10

CPC分类号： H05B33/0848

摘要： Disclosed is a feedback detection circuit, adapted to provide a feedback detection signal wherein a converting circuit provides a driving power source to drive a load according to the feedback detection signal. The feedback detection circuit comprises an operational conversion circuit and a signal limitation circuit. The operational conversion circuit generates the feedback detection signal in response to a level of a detected node of the load. The operational conversion circuit has an operational amplifier, which modulates the level of the feedback detection signal in response to the level of the detected node. The signal limitation circuit is coupled to the operational conversion circuit for clamping a level rang of the feedback detection signal.

摘要翻译： 公开了一种反馈检测电路，其适于提供反馈检测信号，其中转换电路根据反馈检测信号提供驱动电源来驱动负载。 反馈检测电路包括操作转换电路和信号限制电路。 操作转换电路响应于检测到的负载节点的电平而产生反馈检测信号。 操作转换电路具有运算放大器，其响应于检测到的节点的电平来调制反馈检测信号的电平。 信号限制电路耦合到操作转换电路，用于钳位反馈检测信号的电平。

公开(公告)号：US09035560B2

公开(公告)日：2015-05-19

申请号：US13348628

申请日：2012-01-11

申请人： Hai-Po Li ,  Shian-Sung Shiu ,  Li-Min Lee

发明人： Hai-Po Li ,  Shian-Sung Shiu ,  Li-Min Lee

IPC分类号： H05B37/00 ,  H05B39/00 ,  H05B41/00 ,  H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0815 ,  H05B33/0818 ,  H05B33/0827

摘要： The present invention provides an LED (Light-Emitting Diode) driving control circuit for controlling a converting circuit to transform an input power source into an output voltage for driving an LED module. The LED module has a plurality of LED strings. The LED driving control circuit includes a voltage detecting circuit and a feedback control circuit. The voltage detecting circuit has a plurality of detection circuits, and each detection circuit is coupled to a terminal of the corresponding LED string to determine whether a voltage of the terminal is higher or lower than a preset value. The voltage detecting circuit generates a feedback signal according to the determination results. The feedback control circuit controls the converting circuit to modulate the output voltage according to the feedback signal.

摘要翻译： 本发明提供一种LED（发光二极管）驱动控制电路，用于控制转换电路以将输入电源变换为用于驱动LED模块的输出电压。 LED模块具有多个LED串。 LED驱动控制电路包括电压检测电路和反馈控制电路。 电压检测电路具有多个检测电路，并且每个检测电路耦合到相应LED串的端子，以确定端子的电压是否高于或低于预设值。 电压检测电路根据判定结果生成反馈信号。 反馈控制电路根据反馈信号控制转换电路来调制输出电压。