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    TRANSISTOR MODULE AND TRANSISTOR DRIVING MODULE
    21.
    发明申请
    TRANSISTOR MODULE AND TRANSISTOR DRIVING MODULE 有权
    晶体管模块和晶体管驱动模块

    公开(公告)号：US20120038391A1

    公开(公告)日：2012-02-16

    申请号：US13092142

    申请日：2011-04-21

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

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

    IPC分类号： H03K3/01

    CPC分类号： H02H7/122

    摘要： The present invention discloses a transistor driving module, coupling to a converting controller, to driving a high side transistor and a low side transistor connected in series, wherein one end of the high side transistor is coupled to an input voltage and one end of the low side transistor is grounded. The transistor driving module comprises a high side driving unit, a low side driving unit, a current limiting unit and an anti-short through unit. The high side driving unit generates a high side driving signal to turn the high side transistor on according to a duty cycle signal, and the low side driving unit generates a low side driving signal turn the low side transistor on according to the high side driving signal. The current limiting unit is coupled to the high side transistor and the high side driving unit, and generates a current limiting signal when a current flowing through the high side transistor higher than a current limiting value. The high side driving unit is stopped to generate the high side driving signal when receiving the current limiting value. The anti-short through unit is coupled to the high side driving unit and the low side driving unit to control the generations of the high side driving signal and the low side driving signal to have the timings of the high side driving signal and the low side driving signal non-overlapped.

    摘要翻译： 本发明公开了一种与转换控制器耦合以驱动串联连接的高侧晶体管和低侧晶体管的晶体管驱动模块，其中高侧晶体管的一端耦合到输入电压，低端的一端 侧晶体管接地。 晶体管驱动模块包括高侧驱动单元，低侧驱动单元，限流单元和防短路单元。 高侧驱动单元产生高侧驱动信号，以根据占空比信号使高侧晶体管导通，低边驱动单元产生低侧驱动信号，根据高侧驱动信号使低侧晶体管导通 。 电流限制单元耦合到高侧晶体管和高侧驱动单元，并且当流过高侧晶体管的电流高于电流限制值时，产生限流信号。 当接收到电流限制值时，高侧驱动单元被停止以产生高侧驱动信号。 防短路单元耦合到高侧驱动单元和低侧驱动单元，以控制高侧驱动信号和低侧驱动信号的代，以具有高侧驱动信号和低侧的定时 驾驶信号不重叠。

    LED CURRENT CONTROL CIRCUIT, CURRENT BALANCER AND DRIVING APPARATUS
    22.
    发明申请
    LED CURRENT CONTROL CIRCUIT, CURRENT BALANCER AND DRIVING APPARATUS 有权
    LED电流控制电路，电流平衡和驱动装置

    公开(公告)号：US20110109231A1

    公开(公告)日：2011-05-12

    申请号：US12826699

    申请日：2010-06-30

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

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

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0887 ,  H05B33/0827 ,  H05B33/0866 ,  Y02B20/341

    摘要： An LED current control circuit including a current adjusting unit, a detecting unit, and a current control unit is provided. The current adjusting unit has a current control end coupled to an LED string for determining an amount of current flowing through the LED string according to a current control signal. The detecting unit detects the current control end and determines whether to generate a protecting signal according to a protecting voltage value. The current control unit generates the current control signal to control the amount of current flowing through the LED string of and determines whether to stop the current flowing through the LED string according to the protecting signal.

    摘要翻译： 提供了包括电流调节单元，检测单元和电流控制单元的LED电流控制电路。 电流调节单元具有耦合到LED串的电流控制端，用于根据电流控制信号确定流过LED串的电流量。 检测单元检测电流控制端，并根据保护电压值确定是否产生保护信号。 电流控制单元产生电流控制信号以控制流过LED串的电流量，并根据保护信号确定是否停止流经LED串的电流。

    LED DRIVING CIRCUIT AND CONTROLLER WITH TEMPERATURE COMPENSATION THEREOF
    23.
    发明申请
    LED DRIVING CIRCUIT AND CONTROLLER WITH TEMPERATURE COMPENSATION THEREOF 审中-公开
    LED驱动电路及其温度补偿控制器

    公开(公告)号：US20100141159A1

    公开(公告)日：2010-06-10

    申请号：US12399017

    申请日：2009-03-06

    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： H05B37/02

    CPC分类号： H05B33/0827 ,  H05B33/0851 ,  H05B33/0854

    摘要： The present invention provides an LED driving circuit with temperature compensation, comprising a power transforming circuit, an LED module and a controller. The transforming circuit receives an electrical power from an input power source and transforms it into an output voltage according to a control signal. The LED module is coupled to the transforming circuit. The controller generates the control signal according to an operation temperature and a voltage feedback signal indicative of the output voltage, and makes the output voltage decrease with increasing operation temperature. Therefore, the LED driving circuit of the present invention has an effect of temperature compensation that compensates the influence of the decreased driving voltage of the LED module due to temperature.

    摘要翻译： 本发明提供一种具有温度补偿的LED驱动电路，包括功率变换电路，LED模块和控制器。 变换电路从输入电源接收电力，并根据控制信号将其转换为输出电压。 LED模块耦合到变换电路。 控制器根据操作温度和表示输出电压的电压反馈信号产生控制信号，并使输出电压随着工作温度的升高而降低。 因此，本发明的LED驱动电路具有补偿由温度引起的LED模块的驱动电压降低的影响的温度补偿的效果。

    Controller and LED driving circuit with protection function
    25.
    发明授权
    Controller and LED driving circuit with protection function 有权
    控制器和LED驱动电路具有保护功能

    公开(公告)号：US08872441B2

    公开(公告)日：2014-10-28

    申请号：US13354295

    申请日：2012-01-19

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

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

    IPC分类号： H05B37/02 ,  H05B33/08 ,  H03K17/082

    CPC分类号： H05B33/0884 ,  H03K17/0822 ,  H05B33/089 ,  Y02B20/341

    摘要： A controller with protection function, for controlling a transistor having a control terminal, a first terminal coupled to a load, a second terminal, is disclosed. The controller comprises a judgment unit and a current control unit. The judgment unit is coupled to the transistor and generates a current reducing signal when a potential of the first terminal of the transistor or a voltage difference between the first terminal and the second terminal of the transistor is higher than a preset value. The current control unit is coupled to the control terminal of the transistor for substantially stabilizing the current flowing through the transistor at a preset current value, and reduces the current flowing from the preset current value when receiving the current reducing signal.

    摘要翻译： 公开了一种具有保护功能的控制器，用于控制具有控制端子的晶体管，耦合到负载的第一端子，第二端子。 控制器包括判断单元和电流控制单元。 当晶体管的第一端子的电位或晶体管的第一端子和第二端子之间的电压差高于预设值时，判断单元耦合到晶体管并产生电流减小信号。 电流控制单元耦合到晶体管的控制端子，用于基本稳定以预设电流值流过晶体管的电流，并且当接收电流降低信号时，减小从预置电流值流出的电流。

    Resonant converting circuit and resonant controller
    26.
    发明授权
    Resonant converting circuit and resonant controller 有权
    谐振转换电路和谐振控制器

    公开(公告)号：US08824176B2

    公开(公告)日：2014-09-02

    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： H02M1/32 ,  H02M3/337 ,  H02M1/00

    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。

    LED driving circuit
    27.
    发明授权
    LED driving circuit 有权
    LED驱动电路

    公开(公告)号：US08823280B2

    公开(公告)日：2014-09-02

    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： G05F1/00 ,  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。

    Feedback control circuit and LED driving circuit
    28.
    发明授权
    Feedback control circuit and LED driving circuit 有权
    反馈控制电路和LED驱动电路

    公开(公告)号：US08664893B2

    公开(公告)日：2014-03-04

    申请号：US13218405

    申请日：2011-08-25

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

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

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0818 ,  H05B33/0824 ,  H05B33/0827 ,  Y02B20/346

    摘要： The present invention provides a feedback control circuit and an LED driving circuit for using the same, wherein the feedback control circuit receives a dimming signal. The dimming signal is changed between a first state and a second state. When being in the first state, the feedback control circuit controls a converter circuit to drive the LED module for lighting stably. When being in the second state, the feedback control circuit controls the converter circuit to maintain the power conversion of the converter circuit to have an output voltage outputted by the converter circuit maintained at a level close to a lighting threshold voltage of the LED module.

    摘要翻译： 本发明提供一种反馈控制电路和使用该反馈控制电路的LED驱动电路，其中反馈控制电路接收调光信号。 调光信号在第一状态和第二状态之间改变。 当处于第一状态时，反馈控制电路控制转换器电路以驱动LED模块以稳定点亮。 当处于第二状态时，反馈控制电路控制转换器电路以维持转换器电路的功率转换，使转换器电路输出的输出电压保持在接近LED模块的点亮阈值电压的水平。

    LED Driving Circuit
    29.
    发明申请
    LED Driving Circuit 有权
    LED驱动电路

    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。

    Resonant Converting Circuit and Resonant Controller
    30.
    发明申请
    Resonant Converting Circuit and Resonant Controller 有权
    谐振转换电路和谐振控制器

    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。