公开(公告)号：US09000624B2

公开(公告)日：2015-04-07

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： H01H7/00 ,  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：US08618748B2

公开(公告)日：2013-12-31

申请号：US13192466

申请日：2011-07-28

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

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

IPC分类号： H05B37/02 ,  G05F1/00

CPC分类号： H05B33/0815 ,  H05B33/0824 ,  Y02B20/341

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08536804B2

公开(公告)日：2013-09-17

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：US08502461B2

公开(公告)日：2013-08-06

申请号：US13115129

申请日：2011-05-25

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

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

IPC分类号： H05B37/02 ,  G05F1/00

CPC分类号： H05B33/0848 ,  H05B33/0815

摘要： A driving circuit, comprising a power supply, a transistor unit and a feedback control circuit, is disclosed. The power supply is adaptor to provide an electric power to drive a load. The transistor unit comprises at least one load coupling end to couple to the load for adjusting an amount of current flowing through the load. The feedback control circuit controls an amount of the electric power provided by the power supply according to a voltage level of the least one load coupling end. Wherein, the feedback control circuit comprises an error amplifying circuit and a feedback control switch. The error amplifying circuit generates an error amplified signal according to the voltage level of the least one load coupling end, and the feedback control switch is coupled to an output of the error amplifying circuit and is switched between a turn-on state and a turn-off state based on a dimming signal.

摘要翻译： 公开了一种包括电源，晶体管单元和反馈控制电路的驱动电路。 电源是适配器，用于提供驱动负载的电力。 晶体管单元包括至少一个耦合到负载的负载耦合端，用于调节流过负载的电流量。 反馈控制电路根据至少一个负载耦合端的电压电平来控制由电源提供的电力的量。 其中，反馈控制电路包括误差放大电路和反馈控制开关。 误差放大电路根据至少一个负载耦合端的电压电平产生误差放大信号，反馈控制开关耦合到误差放大电路的输出，并在导通状态和转向开关状态之间切换， 基于调光信号的关闭状态。

公开(公告)号：US08368433B2

公开(公告)日：2013-02-05

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：US20120106008A1

公开(公告)日：2012-05-03

申请号：US13192491

申请日：2011-07-28

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： H02H3/20

CPC分类号： H02M3/156 ,  H02M2001/0038

摘要： A spike suppression circuit for filtering out voltage oscillation produced by an inductive component and a conversion control circuit are disclosed. The spike suppression circuit includes an energy release path and a detection circuit. One end of the energy release path is coupled to a connection terminal of a circuit, and the other end thereof is coupled to a reference voltage. The detection circuit is coupled to the connection terminal. The detection circuit has a high-pass component for turning on the energy release path when the voltage on the connection terminal has a high-frequency signal.

摘要翻译： 公开了一种用于滤除由电感元件和转换控制电路产生的电压振荡的尖峰抑制电路。 尖峰抑制电路包括能量释放路径和检测电路。 能量释放路径的一端耦合到电路的连接端子，并且其另一端耦合到参考电压。 检测电路耦合到连接端子。 当连接端子上的电压具有高频信号时，检测电路具有用于接通能量释放路径的高通分量。

公开(公告)号：US20110291591A1

公开(公告)日：2011-12-01

申请号：US13115129

申请日：2011-05-25

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

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

IPC分类号： H05B37/02 ,  H02J7/00

CPC分类号： H05B33/0848 ,  H05B33/0815

摘要： A driving circuit, comprising a power supply, a transistor unit and a feedback control circuit, is disclosed. The power supply is adaptor to provide an electric power to drive a load. The transistor unit comprises at least one load coupling end to couple to the load for adjusting an amount of current flowing through the load. The feedback control circuit controls an amount of the electric power provided by the power supply according to a voltage level of the least one load coupling end. Wherein, the feedback control circuit comprises an error amplifying circuit and a feedback control switch. The error amplifying circuit generates an error amplified signal according to the voltage level of the least one load coupling end, and the feedback control switch is coupled to an output of the error amplifying circuit and is switched between a turn-on state and a turn-off state based on a dimming signal.

摘要翻译： 公开了一种包括电源，晶体管单元和反馈控制电路的驱动电路。 电源是适配器，用于提供驱动负载的电力。 晶体管单元包括至少一个耦合到负载的负载耦合端，用于调节流过负载的电流量。 反馈控制电路根据至少一个负载耦合端的电压电平来控制由电源提供的电力的量。 其中，反馈控制电路包括误差放大电路和反馈控制开关。 误差放大电路根据至少一个负载耦合端的电压电平产生误差放大信号，反馈控制开关耦合到误差放大电路的输出，并在导通状态和转向开关状态之间切换， 基于调光信号的关闭状态。

公开(公告)号：US20110266975A1

公开(公告)日：2011-11-03

申请号：US13089329

申请日：2011-04-19

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

CPC分类号： H05B41/2828 ,  H05B33/0815 ,  Y02B20/346

摘要： An illumination controller adapted to control a converting circuit to convert an electric power of a DC input power source to drive a light source is provided. The illumination controller includes a dimming unit and a control unit. The dimming unit receives a dimming signal and correspondingly generates a dimming control signal according to the number of the dimming signal. The control unit controls the electric power provided to the light source by the converting circuit according to the dimming control signal, so as to adjust a brightness of the light source. Furthermore, an illumination driving system is also provided.

摘要翻译： 提供了一种适于控制转换电路以转换DC输入电源的电力以驱动光源的照明控制器。 照明控制器包括调光单元和控制单元。 调光单元接收调光信号，并根据调光信号的数量相应地产生调光控制信号。 控制单元通过转换电路根据调光控制信号控制提供给光源的电力，以便调节光源的亮度。 此外，还提供了一种照明驱动系统。

公开(公告)号：US20110109288A1

公开(公告)日：2011-05-12

申请号：US12891812

申请日：2010-09-28

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

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

IPC分类号： G05F1/00

CPC分类号： H02M3/156

摘要： A power converting circuit including a converting circuit and a controller is provided. In an embodiemnt of the invention, the inductance of the converting circuit and the operation frequency of the controller can be adjusted according to the power required by the load and/or the size of the inductor current to effectively reduce the switching times and the switching loss of the switch in the converting circuit when the load is light. Accordingly, no matter the load is light or heavy, the efficiency of the power converting circuit can be maintained at a higher standard.

摘要翻译： 提供了包括转换电路和控制器的电力转换电路。 在本发明的实施例中，转换电路的电感和控制器的工作频率可以根据负载所需的功率和/或电感电流的大小进行调节，以有效地减少开关时间和开关损耗 的转换电路中的开关。 因此，无论负载轻或重，都能将电力转换电路的效率维持在更高的标准。

公开(公告)号：US20100327828A1

公开(公告)日：2010-12-30

申请号：US12607967

申请日：2009-10-28

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： G05F1/00

CPC分类号： G05F1/573

摘要： A MOSFET current limiting circuit, a linear voltage regulator, and a voltage converting circuit are provided. A current limiting value of the MOSFET is adjusted with the temperature or the voltage drop across the drain and the source of the MOSFET. Accordingly, it is ensured that the MOSFET operates in the safe operating area in any situation. Therefore, the MOSFET is prevented from being burnt out, and the reliability thereof is also increased.

摘要翻译： 提供了MOSFET限流电路，线性电压调节器和电压转换电路。 通过MOSFET的漏极和源极之间的温度或电压降来调节MOSFET的限流值。 因此，确保MOSFET在任何情况下在安全操作区域中运行。 因此，防止MOSFET被烧毁，并且其可靠性也增加。