公开(公告)号：US20120176048A1

公开(公告)日：2012-07-12

申请号：US13241299

申请日：2011-09-23

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： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0818 ,  H05B33/0827 ,  H05B33/0845 ,  Y02B20/346

摘要： An LED (Light-Emitting Diode) driving circuit to drive an LED module is provided. The LED driving circuit includes a converting circuit and a feedback control circuit. The converting circuit is coupled to the LED module, and converts an input voltage into an output voltage according to at least one control signal. The feedback control circuit generates the control signal to control the converting circuit to perform voltage conversion according to a feedback signal. In addition, the feedback control circuit receives a dimming signal, and is operated in a first state or a second state in response to the dimming signal, wherein the feedback control circuit adjusts the duty cycle of the control signal to have the duty cycle larger than or equal to a predetermined duty cycle in a predetermined period right after the feedback control circuit is operated from the second state to the first state.

摘要翻译： 提供了用于驱动LED模块的LED（发光二极管）驱动电路。 LED驱动电路包括转换电路和反馈控制电路。 转换电路耦合到LED模块，并根据至少一个控制信号将输入电压转换成输出电压。 反馈控制电路产生控制信号以根据反馈信号控制转换电路进行电压转换。 此外，反馈控制电路接收调光信号，并响应于调光信号而在第一状态或第二状态下操作，其中反馈控制电路调节控制信号的占空比以使占空比大于 或等于在反馈控制电路从第二状态操作到第一状态之后的预定周期内的预定占空比。

公开(公告)号：US20120176050A1

公开(公告)日：2012-07-12

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

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。

公开(公告)号：US20130175869A1

公开(公告)日：2013-07-11

申请号：US13470363

申请日：2012-05-14

申请人： Li-Min LEE ,  Zhong-Wei LIU ,  Chung-Che YU ,  Shian-Sung SHIU

发明人： Li-Min LEE ,  Zhong-Wei LIU ,  Chung-Che YU ,  Shian-Sung SHIU

IPC分类号： H02J4/00

CPC分类号： H02J4/00 ,  Y10T307/702 ,  Y10T307/951

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20120274294A1

公开(公告)日：2012-11-01

申请号：US13175946

申请日：2011-07-04

申请人： Li-Min LEE ,  Chung-Che YU ,  Shian-Sung SHIU ,  Quan GAN

发明人： Li-Min LEE ,  Chung-Che YU ,  Shian-Sung SHIU ,  Quan GAN

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  H02M2001/0025

摘要： A control circuit adapted to a DC-DC converting circuit is disclosed. The controller comprises a reference voltage generator, a reference voltage adjusting circuit, a feedback circuit and a driving circuit. The reference voltage adjusting circuit generates an adjusted reference voltage according to a reference voltage generated by the reference voltage generator. The feedback circuit generates a feedback control signal according to the adjusted reference voltage and the feedback signal. The driving circuit generates at least one control signal for controlling the converting circuit according to the feedback control signal.

摘要翻译： 公开了一种适用于DC-DC转换电路的控制电路。 控制器包括参考电压发生器，参考电压调节电路，反馈电路和驱动电路。 参考电压调节电路根据由参考电压发生器产生的参考电压产生调整的参考电压。 反馈电路根据调整的参考电压和反馈信号产生反馈控制信号。 驱动电路根据反馈控制信号产生用于控制转换电路的至少一个控制信号。

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：US20120229050A1

公开(公告)日：2012-09-13

申请号：US13304271

申请日：2011-11-23

申请人： Chung-Che YU ,  Shian-Sung SHIU ,  Li-Min LEE ,  Juan-Juan LIU

发明人： Chung-Che YU ,  Shian-Sung SHIU ,  Li-Min LEE ,  Juan-Juan LIU

IPC分类号： H05B37/02 ,  G05F1/46

CPC分类号： H02M3/156 ,  H02M2001/0025 ,  H05B33/0815

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20120229034A1

公开(公告)日：2012-09-13

申请号：US13366358

申请日：2012-02-06

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： H05B37/02 ,  H02M3/335

CPC分类号： H02M3/3376 ,  H02M3/33576 ,  H02M2001/0058 ,  H05B33/0815 ,  H05B33/0848 ,  Y02B20/348 ,  Y02B70/1433 ,  Y02B70/1491

摘要： The present invention provides a full-bridge driving controller and a full-bridge converting circuit, which have the function of soft switch, to provide a DC output voltage. The present invention employs a resonant unit to oscillate the current flowing through the converting circuit at a resonant frequency. The full-bridge driving controller switches four full-bridge transistor switches at an operating frequency higher than the resonant frequency, so as to achieve the function of soft switch.

摘要翻译： 本发明提供具有软开关功能的全桥驱动控制器和全桥转换电路，以提供DC输出电压。 本发明采用谐振单元以谐振频率振荡流过转换电路的电流。 全桥驱动控制器以高于谐振频率的工作频率切换四个全桥晶体管开关，从而实现软开关的功能。

公开(公告)号：US20130107411A1

公开(公告)日：2013-05-02

申请号：US13287133

申请日：2011-11-02

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： H02H9/04

CPC分类号： G06F1/04

摘要： A driving circuit controls a driving signal according to a control signal at a first or second logic level for driving a load. A driving protection circuit includes a driving signal detection circuit for generating a load error signal in response to that a load is abnormal; a delay judgment circuit coupled to the driving signal detection circuit for generating a first signal in response to that the load has been abnormal for a predetermined time period; and a logic control circuit coupled to the delay judgment circuit and the driving circuit for determining whether to modulate the driving signal according to the first signal. When the control signal has been at the first logic level and the load has been abnormal for the predetermined time period, the logic control signal modulates the driving signal to be a level corresponding to the control signal at the second logic level.

摘要翻译： 驱动电路根据用于驱动负载的第一或第二逻辑电平的控制信号来控制驱动信号。 驱动保护电路包括用于响应于负载异常而产生负载误差信号的驱动信号检测电路; 延迟判断电路，耦合到驱动信号检测电路，用于响应于负载已经异常预定的时间周期产生第一信号; 以及逻辑控制电路，其耦合到所述延迟判断电路和所述驱动电路，用于根据所述第一信号确定是否调制所述驱动信号。 当控制信号处于第一逻辑电平并且负载在预定时间段内已经异常时，逻辑控制信号将驱动信号调制成与第二逻辑电平上的控制信号相对应的电平。

公开(公告)号：US20120274235A1

公开(公告)日：2012-11-01

申请号：US13241296

申请日：2011-09-23

申请人： Li-Min LEE ,  Chung-Che YU ,  Shian-Sung SHIU ,  Xi TU

发明人： Li-Min LEE ,  Chung-Che YU ,  Shian-Sung SHIU ,  Xi TU

IPC分类号： H05B37/02 ,  G05F1/00

CPC分类号： H02M3/156 ,  H02M1/32

摘要： A converting controller, adapted to control a converting circuit to convert an electric power from an input power source, is provided. The controller comprises a duty cycle control unit, a protection enabling control unit and a protection unit. The duty cycle control unit controls the converting circuit according to a feedback signal for converting the electric power from the input power. The protection enabling control unit outputs protection enabling signals according to time results of a timing circuit. The protection unit detects the converting circuit and generates a protection signal when any circuit error is determined, so as to stop the duty cycle control unit, wherein the protection unit has a plurality of protection functions and enables the protection functions with respect to the protection enabling signals, respectively.

摘要翻译： 提供了一种适于控制转换电路以从输入电源转换电力的转换控制器。 控制器包括占空比控制单元，保护使能控制单元和保护单元。 占空比控制单元根据用于从输入功率转换电力的反馈信号控制转换电路。 保护使能控制单元根据定时电路的时间结果输出保护使能信号。 当确定任何电路错误时，保护单元检测转换电路并产生保护信号，以便停止占空比控制单元，其中保护单元具有多个保护功能，并且能够实现关于保护功能的保护功能 信号。

公开(公告)号：US20120057259A1

公开(公告)日：2012-03-08

申请号：US12958425

申请日：2010-12-02

申请人： Yang YANG ,  Hai-Po LI ,  Li-Min LEE

发明人： Yang YANG ,  Hai-Po LI ,  Li-Min LEE

IPC分类号： H02H9/04 ,  H02H9/02

CPC分类号： H02J7/0031

摘要： A controller with battery recharge protective function is disclosed in this invention. The controller is used for protecting a battery module. When the battery module is in a protective state, a recharge protection circuit of the controller is activated. A charging current from a positive recharge terminal flows into one pin of the controller. Afterward, the charging current passes the recharge protection circuit, flows out through another pin of the controller, and then returns to a negative recharge terminal. Accordingly, the recharge protection circuit makes the charging current bypass the battery module, so as to prevent the battery module from being damaged.

摘要翻译： 具有电池充电保护功能的控制器在本发明中被公开。 控制器用于保护电池模块。 当电池模块处于保护状态时，控制器的充电保护电路被激活。 来自正充电端子的充电电流流入控制器的一个引脚。 然后，充电电流通过充电保护电路，通过控制器的另一个引脚流出，然后返回到负充电端子。 因此，充电保护电路使充电电流旁通电池模块，以防止电池模块被损坏。