公开(公告)号：US20120242249A1

公开(公告)日：2012-09-27

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 ,  H03K3/00

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。

公开(公告)号：US20120229031A1

公开(公告)日：2012-09-13

申请号：US13364333

申请日：2012-02-02

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： H05B37/00 ,  H02H7/00

CPC分类号： H05B33/0887 ,  Y02B20/341

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08253403B2

公开(公告)日：2012-08-28

申请号：US12623450

申请日：2009-11-23

申请人： Ji-Ming Chen ,  Chung-Che Yu

发明人： Ji-Ming Chen ,  Chung-Che Yu

IPC分类号： G05F1/44

CPC分类号： H02M3/158 ,  H02M1/44 ,  H02M2001/322

摘要： The present invention uses a discharge path to release the power stored in an output capacitor of a converting circuit when the time interval between two adjacent switching thereof is too long and may generate noises whose frequencies can be sensed by human ears. Hence, the present invention can keep the operating frequency of the converting circuit higher than a predetermined frequency and reduce the audio noise of the converting circuit.

摘要翻译： 本发明使用放电路径来释放存储在转换电路的输出电容器中的电力，当它们的两个相邻开关之间的时间间隔太长时，并且可能产生其人耳可感测频率的噪声。 因此，本发明可以将转换电路的工作频率保持为高于预定频率，并降低转换电路的音频噪声。

公开(公告)号：US08248045B2

公开(公告)日：2012-08-21

申请号：US12840637

申请日：2010-07-21

申请人： Shian-Sung Shiu

发明人： Shian-Sung Shiu

IPC分类号： G05F1/00 ,  H02M7/537

CPC分类号： H02M3/07 ,  H02M2001/0087 ,  H05B33/0818 ,  Y02B20/341 ,  Y02B20/347

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20120112645A1

公开(公告)日：2012-05-10

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。

公开(公告)号：US08138685B2

公开(公告)日：2012-03-20

申请号：US12539624

申请日：2009-08-12

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

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

IPC分类号： G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36

CPC分类号： H02M1/36 ,  H05B33/0887 ,  H05B41/2983 ,  Y10S315/05

摘要： A controller which receives electric power required for operating through a driving voltage terminal and controls a converting circuit to convert an input voltage into an output voltage is provided. The controller is latched to stop providing a part or all of functions until the input voltage is removed. Therefore, the issues of the converting circuit in related arts in shortened life-span and safety of users due to can be avoided in the present invention.

摘要翻译： 提供一种控制器，其接收通过驱动电压端子操作所需的电力并控制转换电路将输入电压转换为输出电压。 控制器被锁定以停止提供部分或全部功能，直到输入电压被去除。 因此，在本发明中可以避免相关技术中的转换电路在缩短使用寿命和安全性方面的问题。

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。

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。

公开(公告)号：US20110037401A1

公开(公告)日：2011-02-17

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 ,  H05B37/02 ,  H05B41/36 ,  H02M7/5383

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。 功率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。

公开(公告)号：US20100244912A1

公开(公告)日：2010-09-30

申请号：US12731358

申请日：2010-03-25

申请人： JI-MING CHEN ,  HUAN-WEN CHIEN

发明人： JI-MING CHEN ,  HUAN-WEN CHIEN

IPC分类号： H03L7/00

CPC分类号： H03K17/22

摘要： A voltage detection enabling circuit is disclosed. The voltage detection enabling circuit includes a reference voltage generating unit, an enabling protection unit, and an enabling judgment unit. The reference voltage generating unit is coupled to a driving voltage, and generates a reference voltage signal. The enabling protection unit receives the reference voltage signal and outputs an enabling judgment signal when the reference voltage signal is higher than a voltage parameter. Particularly, the voltage parameter is a component parameter of an electronic component. Then the enabling judgment unit determines whether an enabling signal is generated or not according to the enabling judgment signal and the driving voltage.

摘要翻译： 公开了电压检测使能电路。 电压检测使能电路包括参考电压产生单元，使能保护单元和使能判断单元。 参考电压产生单元耦合到驱动电压，并产生参考电压信号。 启用保护单元接收参考电压信号，并且当参考电压信号高于电压参数时，输出使能判断信号。 特别地，电压参数是电子部件的分量参数。 然后，使能判断单元根据使能判断信号和驱动电压来判定是否产生使能信号。