公开(公告)号：US08179059B2

公开(公告)日：2012-05-15

申请号：US12579802

申请日：2009-10-15

申请人： Chih-Hao Yang ,  Fu-Yuan Shih ,  An-Tung Chen ,  Shui-Mu Lin

发明人： Chih-Hao Yang ,  Fu-Yuan Shih ,  An-Tung Chen ,  Shui-Mu Lin

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

CPC分类号： H05B33/0887 ,  H05B33/0815 ,  H05B33/0827 ,  Y02B20/347

摘要： The present invention discloses a circuit and a method for controlling a light emitting device, and an integrated circuit therefore. The circuit for controlling a light emitting device comprises: a power stage controller circuit controlling a power stage circuit to convert an input voltage to an output voltage, which is supplied to at least one light emitting device channel including at least one light emitting device; a transistor switch in the light emitting device channel; and a current source circuit controlling a current through the light emitting device channel, wherein the power stage controller circuit and the current source circuit are integrated in an integrated circuit which provides a control voltage to control a gate of the transistor switch.

摘要翻译： 本发明公开了一种用于控制发光器件的电路和方法，以及集成电路。 用于控制发光器件的电路包括：功率级控制器电路，其控制功率级电路以将输入电压转换为输出电压，所述输出电压被提供给包括至少一个发光器件的至少一个发光器件通道; 发光器件通道中的晶体管开关; 以及电流源电路，其控制通过所述发光器件沟道的电流，其中所述功率级控制器电路和所述电流源电路集成在提供控制电压以控制所述晶体管开关的栅极的集成电路中。

公开(公告)号：US20110089854A1

公开(公告)日：2011-04-21

申请号：US12579802

申请日：2009-10-15

申请人： Chih-Hao Yang ,  Fu-Yuan Shih ,  An-Tung Chen ,  Shui-Mu Lin

发明人： Chih-Hao Yang ,  Fu-Yuan Shih ,  An-Tung Chen ,  Shui-Mu Lin

IPC分类号： H05B37/02

CPC分类号： H05B33/0887 ,  H05B33/0815 ,  H05B33/0827 ,  Y02B20/347

摘要： The present invention discloses a circuit and a method for controlling a light emitting device, and an integrated circuit therefore. The circuit for controlling a light emitting device comprises: a power stage controller circuit controlling a power stage circuit to convert an input voltage to an output voltage, which is supplied to at least one light emitting device channel including at least one light emitting device; a transistor switch in the light emitting device channel; and a current source circuit controlling a current through the light emitting device channel, wherein the power stage controller circuit and the current source circuit are integrated in an integrated circuit which provides a control voltage to control a gate of the transistor switch.

摘要翻译： 本发明公开了一种用于控制发光器件的电路和方法，以及集成电路。 用于控制发光器件的电路包括：功率级控制器电路，其控制功率级电路以将输入电压转换为输出电压，所述输出电压被提供给包括至少一个发光器件的至少一个发光器件通道; 发光器件通道中的晶体管开关; 以及电流源电路，其控制通过所述发光器件沟道的电流，其中所述功率级控制器电路和所述电流源电路集成在提供控制电压以控制所述晶体管开关的栅极的集成电路中。

公开(公告)号：US08878304B2

公开(公告)日：2014-11-04

申请号：US13358242

申请日：2012-01-25

申请人： Li-Wen Fang ,  Chih-Hao Yang ,  An-Tung Chen

发明人： Li-Wen Fang ,  Chih-Hao Yang ,  An-Tung Chen

IPC分类号： H01L27/06 ,  G11C29/00 ,  H01L27/02

CPC分类号： G11C29/785 ,  H01L27/0255 ,  H01L27/0617

摘要： The present invention discloses a fuse circuit for final test trimming of an integrated circuit (IC) chip. The fuse circuit includes at least one electrical fuse, at least one control switch corresponding to the electrical fuse, and a resistant device. The electrical fuse is connected with the control switch in series between a predetermined pin and a grounding pin. The control switch receives a control signal to determine whether a predetermined current flows through the corresponding electrical fuse and breaks the electrical fuse. The resistant device is coupled between a bulk terminal and a source terminal to increase a resistance of a parasitic channel, such that an electrostatic discharge (ESD) protection is enhanced, and errors of final test trimming of an IC chip are avoided.

摘要翻译： 本发明公开了一种用于集成电路（IC）芯片的最终测试修整的熔丝电路。 熔断器电路包括至少一个电熔丝，对应于电熔丝的至少一个控制开关和一个电阻装置。 电保险丝与控制开关串联连接在预定的引脚和接地引脚之间。 控制开关接收控制信号以确定预定电流是否流过相应的电熔丝并断开电熔丝。 电阻器件耦合在体端子和源极端子之间以增加寄生沟道的电阻，从而增强了静电放电（ESD）保护，并且避免了IC芯片的最终测试修整的误差。

公开(公告)号：US08791678B2

公开(公告)日：2014-07-29

申请号：US13188867

申请日：2011-07-22

申请人： Ting-Jung Tai ,  Chih-Hao Yang ,  An-Tung Chen

发明人： Ting-Jung Tai ,  Chih-Hao Yang ,  An-Tung Chen

IPC分类号： H02M3/156

CPC分类号： H02M3/156

摘要： A control circuit of a switching DC-DC power supply includes a feedback circuit detecting an output voltage of the power supply to generate a feedback signal, an error comparator detecting an error between the output voltage and a design value of the output voltage, a control logic circuit generating a control signal according to the error for regulating the output voltage, and an offset and delay cancellation circuit generating an offset adjust signal according to the feedback signal and a second reference voltage for adjusting an offset of the error comparator to pull the output voltage toward the design value.

摘要翻译： 开关DC-DC电源的控制电路包括检测电源的输出电压以产生反馈信号的反馈电路，检测输出电压与输出电压的设计值之间的误差的误差比较器，控制 逻辑电路根据用于调节输出电压的误差产生控制信号，以及偏移和延迟消除电路，根据反馈信号产生偏移调整信号，第二参考电压用于调整误差比较器的偏移量以将输出 电压达到设计值。

公开(公告)号：US08446135B2

公开(公告)日：2013-05-21

申请号：US13404520

申请日：2012-02-24

申请人： An-Tung Chen ,  Chih-Hao Yang

发明人： An-Tung Chen ,  Chih-Hao Yang

IPC分类号： G05F1/56

CPC分类号： H02M3/156 ,  H02M2001/0025

摘要： A control circuit and method for a ripple regulator system generate a ripple signal in-phase and synchronous with an inductor current of the ripple regulator system, and extract a ripple information proportional to the amplitude of the ripple signal. The ripple signal is used for triggering control in PWM signal generation to make the ripple regulator system have small ripples and better loop stability simultaneously. The ripple information is used to improve the output offset of the ripple regulator system that is caused by the ripple signal.

摘要翻译： 用于纹波调节器系统的控制电路和方法与纹波调节器系统的电感电流同相产生纹波信号，并提取与纹波信号幅度成比例的纹波信息。 纹波信号用于触发PWM信号生成中的控制，使波纹调节器系统同时具有小波纹和更好的环路稳定性。 纹波信息用于改善由纹波信号引起的纹波调节器系统的输出偏移。

公开(公告)号：US08884942B2

公开(公告)日：2014-11-11

申请号：US12885959

申请日：2010-09-20

申请人： An-Tung Chen ,  Chih-Hao Yang

发明人： An-Tung Chen ,  Chih-Hao Yang

IPC分类号： G06F3/038 ,  G06F3/041 ,  H05B33/08

CPC分类号： H05B33/0851

摘要： A hysteretic mode LED driver for providing a driving current for an LED includes a hysteretic comparing circuit and a feedback loop. The hysteretic comparing circuit compares a driving current related sensing signal with a reference signal to control the average value of the driving current. The feedback loop senses the error between the average value of the driving current and a target value to adjust the reference signal or the offset of the hysteretic comparing circuit to adjust the average value of the driving current.

摘要翻译： 用于为LED提供驱动电流的迟滞模式LED驱动器包括迟滞比较电路和反馈回路。 迟滞比较电路将驱动电流相关感测信号与参考信号进行比较，以控制驱动电流的平均值。 反馈回路检测驱动电流的平均值与目标值之间的误差，以调整参考信号或滞后比较电路的偏移量，以调整驱动电流的平均值。

公开(公告)号：US20130113049A1

公开(公告)日：2013-05-09

申请号：US13358242

申请日：2012-01-25

申请人： LI-WEN FANG ,  Chih-Hao Yang ,  An-Tung Chen

发明人： LI-WEN FANG ,  Chih-Hao Yang ,  An-Tung Chen

IPC分类号： H01L27/06

CPC分类号： G11C29/785 ,  H01L27/0255 ,  H01L27/0617

摘要： The present invention discloses a fuse circuit for final test trimming of an integrated circuit (IC) chip. The fuse circuit includes at least one electrical fuse, at least one control switch corresponding to the electrical fuse, and a resistant device. The electrical fuse is connected with the control switch in series between a predetermined pin and a grounding pin. The control switch receives a control signal to determine whether a predetermined current flows through the corresponding electrical fuse and breaks the electrical fuse. The resistant device is coupled between a bulk terminal and a source terminal to increase a resistance of a parasitic channel, such that an electrostatic discharge (ESD) protection is enhanced, and errors of final test trimming of an IC chip are avoided.

摘要翻译： 本发明公开了一种用于集成电路（IC）芯片的最终测试修整的熔丝电路。 熔断器电路包括至少一个电熔丝，对应于电熔丝的至少一个控制开关和一个电阻装置。 电保险丝与控制开关串联连接在预定的引脚和接地引脚之间。 控制开关接收控制信号以确定预定电流是否流过相应的电熔丝并断开电熔丝。 电阻器件耦合在体端子和源极端子之间以增加寄生沟道的电阻，从而增强了静电放电（ESD）保护，并且避免了IC芯片的最终测试修整的误差。

公开(公告)号：US08451887B2

公开(公告)日：2013-05-28

申请号：US13087466

申请日：2011-04-15

申请人： An-Tung Chen ,  Shao-Hung Lu ,  Isaac Y. Chen

发明人： An-Tung Chen ,  Shao-Hung Lu ,  Isaac Y. Chen

IPC分类号： H03K7/08

CPC分类号： H03K7/08 ,  H02M2003/1586 ,  H03K19/00346

摘要： A multi-channel regulator system includes serially connected PWM integrated circuits, each of which determines a PWM signal for a respective channel to operate therewith, and individually controls its operation mode according to whether or not an external clock is detected. Therefore, each channel will not be limited to operate under a constant mode and could become a master channel or a slave channel. Additionally, each of the PWM integrated circuits generates a phase shifted synchronous clock for its next channel during it is enabled, and thus all the channels operate in a synchronous but phase interleaving manner.

摘要翻译： 多通道稳压器系统包括串联连接的PWM集成电路，每个PWM集成电路确定用于相应通道的PWM信号以进行操作，并且根据是否检测到外部时钟单独地控制其操作模式。 因此，每个通道不限于在恒定模式下工作，并且可以成为主通道或从通道。 此外，每个PWM集成电路在其使能期间产生用于其下一个通道的相移同步时钟，因此所有通道以同步但相位交错的方式工作。

公开(公告)号：US08018217B2

公开(公告)日：2011-09-13

申请号：US12461213

申请日：2009-08-05

申请人： An-Tung Chen ,  Jo-Yu Wang

发明人： An-Tung Chen ,  Jo-Yu Wang

IPC分类号： G05F1/00

CPC分类号： H02M3/158

摘要： A ramp generator is provided to provide a multi-slope ramp signal for a PWM power converter. The ramp generator determines the slope turning points for the multi-slope ramp signal according to the error signal of the PWM power converter and thereby improve the transient response of the PWM power converter. Preferably, the slope turning point of the multi-slope ramp signal varies with the average of the error signal and is thus adaptive to the error signal and thereby the load condition.

摘要翻译： 提供斜坡发生器以为PWM功率转换器提供多斜坡斜坡信号。 斜坡发生器根据PWM功率转换器的误差信号确定多斜坡斜坡信号的斜率转折点，从而提高PWM功率转换器的瞬态响应。 优选地，多斜坡斜坡信号的斜率转折点随误差信号的平均值而变化，因此适应于误差信号，从而适应于负载状况。

公开(公告)号：US20110109238A1

公开(公告)日：2011-05-12

申请号：US12925504

申请日：2010-10-22

申请人： Chien-Fu Tang ,  Isaac Chen ,  An-Tung Chen

发明人： Chien-Fu Tang ,  Isaac Chen ,  An-Tung Chen

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0818

摘要： The present invention discloses a digital dimming device and a digital dimming method, for controlling a plurality of light emitting device channels. The method comprises: generating a corresponding plurality of driving signals to control the plurality of light emitting device channels; receiving a PWM input signal having a duty ratio, and phase shifting the PWM input signal to generate multiple PWM output signals with about the same duty ratio as the PWM input signal, but with respectively shifted phases; and enabling or disabling corresponding driving signals by the multiple PWM output signals, respectively.

摘要翻译： 本发明公开了一种用于控制多个发光装置通道的数字调光装置和数字调光方法。 该方法包括：产生相应的多个驱动信号以控制多个发光装置通道; 接收具有占空比的PWM输入信号，并且相位移PWM输入信号以产生与PWM输入信号大致相同占空比的多个PWM输出信号，但分别转换相位; 以及通过多个PWM输出信号分别启用或禁用相应的驱动信号。