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    • 42. 发明申请
    • Controller and LED driving circuit with protection function
    • 控制器和LED驱动电路具有保护功能
    • US20120242249A1
    • 2012-09-27
    • US13354295
    • 2012-01-19
    • Chung-Che YuLi-Min LeeShian-Sung Shiu
    • Chung-Che YuLi-Min LeeShian-Sung Shiu
    • H05B37/02H03K3/00
    • H05B33/0884H03K17/0822H05B33/089Y02B20/341
    • 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.
    • 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。
    • 44. 发明申请
    • TRANSISTOR MODULE AND TRANSISTOR DRIVING MODULE
    • 晶体管模块和晶体管驱动模块
    • US20120038391A1
    • 2012-02-16
    • US13092142
    • 2011-04-21
    • Li-Min LeeShian-Sung ShiuChung-Che YuSi-Min Wu
    • Li-Min LeeShian-Sung ShiuChung-Che YuSi-Min Wu
    • H03K3/01
    • H02H7/122
    • 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.
    • 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。
    • 47. 发明授权
    • Converting controller
    • 转换控制器
    • US09035557B2
    • 2015-05-19
    • US13364333
    • 2012-02-02
    • Shian-Sung ShiuLi-Min LeeChung-Che Yu
    • Shian-Sung ShiuLi-Min LeeChung-Che Yu
    • H01J7/42H05B33/08
    • H05B33/0887Y02B20/341
    • A converting controller comprises a power pin, a ground pin, at least one input pin, at least one output pin, at least one set pin and a failure generating circuit. The power pin is adapted to be coupled with a power source to receive electric power for operation, and the ground pin is adapted to be grounded. The input pin is adapted to receive a corresponding input signal and the output pin is used to output a corresponding output signal. The set pin is adapted to set a corresponding operating parameter of the converting controller. The failure generating circuit is coupled with and uses one of the input pin and the set pin as a protection output pin. The failure generating circuit modulates the level of the protection output pin to be a protection logic level when the converting controller is under a protection state.
    • 转换控制器包括电源引脚,接地引脚,至少一个输入引脚,至少一个输出引脚,至少一个引脚和故障发生电路。 电源引脚适于与电源耦合以接收用于操作的电力,并且接地引脚适于接地。 输入引脚适于接收相应的输入信号,输出引脚用于输出相应的输出信号。 设定引脚适用于设定转换控制器的对应操作参数。 故障发生电路与输入引脚和设置引脚中的一个耦合并用作保护输出引脚。 当转换控制器处于保护状态时,故障发生电路将保护输出引脚的电平调制为保护逻辑电平。
    • 48. 发明授权
    • Power-good signal generator and controller with power sequencing free
    • 功率良好的信号发生器和控制器,无需电源排序
    • US09000624B2
    • 2015-04-07
    • US13470363
    • 2012-05-14
    • Li-Min LeeZhong-Wei LiuChung-Che YuShian-Sung Shiu
    • Li-Min LeeZhong-Wei LiuChung-Che YuShian-Sung Shiu
    • H01H7/00H02J4/00
    • H02J4/00Y10T307/702Y10T307/951
    • A power-good signal generator generates a power-good signal according to a control signal of a controller, and comprises an impedance element, a controlled transistor and a power sequencing free circuit. An end of the impedance element is coupled to a second voltage source. The controlled transistor has first and second input/output ends and a controlled end, wherein the first input/output end is coupled to the other end of the impedance element to generate the power-good signal. An operating state of the controlled transistor is changed in response to the control signal. The power sequencing free circuit is coupled to the controlled end and one of the first input/output end and the second voltage source. When the second voltage source is supplied before the first voltage source, the power sequencing free circuit turns on the controlled transistor to clamp the power-good signal to be lower than a predetermined voltage level.
    • 功率良好信号发生器根据控制器的控制信号产生功率良好信号,并且包括阻抗元件,受控晶体管和电力排序自由电路。 阻抗元件的端部耦合到第二电压源。 受控晶体管具有第一和第二输入/输出端和受控端,其中第一输入/输出端耦合到阻抗元件的另一端以产生功率良好信号。 控制晶体管的工作状态响应于控制信号而改变。 电源排序自由电路耦合到受控端和第一输入/输出端和第二电压源中的一个。 当在第一电压源之前提供第二电压源时,电力排序自由电路导通受控晶体管,以将功率良好信号钳位到低于预定电压电平。
    • 49. 发明授权
    • Power converting controller and light-emitting diode driving circuit
    • 电力转换控制器和发光二极管驱动电路
    • US08618748B2
    • 2013-12-31
    • US13192466
    • 2011-07-28
    • Shian-Sung ShiuChung-Che YuLi-Min LeeKe Peng
    • Shian-Sung ShiuChung-Che YuLi-Min LeeKe Peng
    • H05B37/02G05F1/00
    • H05B33/0815H05B33/0824Y02B20/341
    • A power converting controller and an LED driving circuit are provided. The power converting controller controls a converting circuit, which converts an input power source into an appropriate power source to drive a load. The power converting controller includes a feedback control unit, an open-circuit judging unit and a protection unit. The feedback control unit controls the converting circuit according to a feedback signal representing the status of the load. As the open-circuit judging unit has judged that the load is continuously in an open-circuit status for a predetermined time length, the open-circuit judging unit generates an open-circuit protection signal. The protection unit is coupled to the feedback control unit and the open-circuit judging unit so as to generate a protection signal as receiving the open-circuit protection signal and thereby the feedback control unit enters a latch status to stop controlling the converting circuit.
    • 提供电力转换控制器和LED驱动电路。 电力转换控制器控制转换电路,其将输入电源转换成适当的电源以驱动负载。 电力转换控制器包括反馈控制单元,开路判断单元和保护单元。 反馈控制单元根据表示负载状态的反馈信号控制转换电路。 由于开路判断部判断负载连续处于规定时间长度的开路状态,所以开路判断部生成开路保护信号。 保护单元耦合到反馈控制单元和开路判断单元,以便产生保护信号作为接收开路保护信号,由此反馈控制单元进入锁存状态以停止控制转换电路。
    • 50. 发明授权
    • Converting controller
    • 转换控制器
    • US08536804B2
    • 2013-09-17
    • US13304271
    • 2011-11-23
    • Chung-Che YuShian-Sung ShiuLi-Min LeeJuan-Juan Liu
    • Chung-Che YuShian-Sung ShiuLi-Min LeeJuan-Juan Liu
    • H05B37/02G05F1/46
    • H02M3/156H02M2001/0025H05B33/0815
    • A converting controller is provided and comprises a first comparing unit, a second comparing unit, a duty cycle operating unit and a reference voltage supplying unit. The first comparing unit receives a detecting signal representing a state of the load and a first reference signal, and generates a first comparing signal accordingly. The duty cycle operating unit controls power conversion of the converting circuit according to the first comparing signal. The second comparing unit receives the detecting signal and a second reference signal, and generates a second comparing signal accordingly. The reference voltage supplying unit supplies the first reference signal and adjusts a level of the first reference signal in response to the second comparing signal.
    • 提供转换控制器,包括第一比较单元,第二比较单元,占空比操作单元和参考电压提供单元。 第一比较单元接收表示负载状态的检测信号和第一参考信号,并相应地产生第一比较信号。 占空比操作单元根据第一比较信号控制转换电路的功率转换。 第二比较单元接收检测信号和第二参考信号,并相应地产生第二比较信号。 参考电压提供单元响应于第二比较信号提供第一参考信号并调节第一参考信号的电平。