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。

公开(公告)号：US20140055178A1

公开(公告)日：2014-02-27

申请号：US14070518

申请日：2013-11-02

申请人： Isaac Chen ,  An-Tung Chen

发明人： Isaac Chen ,  An-Tung Chen

IPC分类号： H03K5/15

CPC分类号： H03K5/15073 ,  G06F1/04 ,  H02J3/01 ,  H02M2003/1586 ,  Y10T307/50 ,  Y10T307/707

摘要： The present invention discloses an adaptive phase-shifted synchronization clock generation circuit and a method for generating phase-shifted synchronization clock. The adaptive phase-shifted synchronization clock generation circuit includes: a current source generating a current which flows through a node to generate a node voltage on the node; a reverse-proportional voltage generator coupled to the node for generating a voltage which is reverse-proportional to the node voltage; a ramp generator receiving a synchronization input signal and generating a ramp signal; a comparator comparing the reverse-proportional voltage to the ramp signal; and a pulse generator for generating a clock signal according to an output from the comparator.

摘要翻译： 本发明公开了一种自适应相移同步时钟产生电路和一种产生相移同步时钟的方法。 自适应相移同步时钟生成电路包括：电流源，其产生流过节点的电流，以在节点上产生节点电压; 耦合到所述节点的反向比例电压发生器，用于产生与所述节点电压成反比的电压; 斜坡发生器接收同步输入信号并产生斜坡信号; 比较反向比例电压与斜坡信号的比较器; 以及用于根据比较器的输出产生时钟信号的脉冲发生器。

公开(公告)号：US08643292B2

公开(公告)日：2014-02-04

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： G05F1/00

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。

公开(公告)号：US20070064454A1

公开(公告)日：2007-03-22

申请号：US11487388

申请日：2006-07-17

申请人： Isaac Chen ,  An-Tung Chen ,  Liang-Pin Tai

发明人： Isaac Chen ,  An-Tung Chen ,  Liang-Pin Tai

IPC分类号： H02M1/00

CPC分类号： H02M1/36 ,  H02M3/156 ,  H02M2001/0025 ,  Y10S323/901

摘要： A circuit and method for soft start of a system compare a feedback signal produced from an output voltage of the system with a ramp signal to generate a comparison signal, and enables the system once the comparison signal indicating the ramp signal reaches the feedback signal, such that the output voltage becomes active from a residual voltage toward a target level.

摘要翻译： 用于软启动的系统的电路和方法将从系统的输出电压产生的反馈信号与斜坡信号进行比较，以产生比较信号，并且一旦指示斜坡信号的比较信号达到反馈信号，使能系统， 输出电压从残余电压向目标电平变为有效。

公开(公告)号：US20110280353A1

公开(公告)日：2011-11-17

申请号：US12930941

申请日：2011-01-20

申请人： Isaac Chen ,  An-Tung Chen

发明人： Isaac Chen ,  An-Tung Chen

IPC分类号： H04L7/00

CPC分类号： H03K5/15073 ,  G06F1/04 ,  H02J3/01 ,  H02M2003/1586 ,  Y10T307/50 ,  Y10T307/707

摘要： The present invention discloses an adaptive phase-shifted synchronization clock generation circuit and a method for generating phase-shifted synchronization clock. The adaptive phase-shifted synchronization clock generation circuit includes: a current source generating a current which flows through a node to generate a node voltage on the node; a reverse-proportional voltage generator coupled to the node for generating a voltage which is reverse-proportional to the node voltage; a ramp generator receiving a synchronization input signal and generating a ramp signal; a comparator comparing the reverse-proportional voltage to the ramp signal; and a pulse generator for generating a clock signal according to an output from the comparator.

摘要翻译： 本发明公开了一种自适应相移同步时钟产生电路和一种产生相移同步时钟的方法。 自适应相移同步时钟生成电路包括：电流源，其产生流过节点的电流，以在节点上产生节点电压; 耦合到所述节点的反向比例电压发生器，用于产生与所述节点电压成反比的电压; 斜坡发生器接收同步输入信号并产生斜坡信号; 比较反向比例电压与斜坡信号的比较器; 以及用于根据比较器的输出产生时钟信号的脉冲发生器。

公开(公告)号：US09008251B2

公开(公告)日：2015-04-14

申请号：US14070518

申请日：2013-11-02

申请人： Isaac Chen ,  An-Tung Chen

发明人： Isaac Chen ,  An-Tung Chen

IPC分类号： G06F1/04 ,  H02M3/156 ,  H03K5/15 ,  H02J3/01 ,  H02M3/158

CPC分类号： H03K5/15073 ,  G06F1/04 ,  H02J3/01 ,  H02M2003/1586 ,  Y10T307/50 ,  Y10T307/707

摘要： The present invention discloses an adaptive phase-shifted synchronization clock generation circuit and a method for generating phase-shifted synchronization clock. The adaptive phase-shifted synchronization clock generation circuit includes: a current source generating a current which flows through a node to generate a node voltage on the node; a reverse-proportional voltage generator coupled to the node for generating a voltage which is reverse-proportional to the node voltage; a ramp generator receiving a synchronization input signal and generating a ramp signal; a comparator comparing the reverse-proportional voltage to the ramp signal; and a pulse generator for generating a clock signal according to an output from the comparator.

摘要翻译： 本发明公开了一种自适应相移同步时钟产生电路和一种产生相移同步时钟的方法。 自适应相移同步时钟生成电路包括：电流源，其产生流过节点的电流，以在节点上产生节点电压; 耦合到所述节点的反向比例电压发生器，用于产生与所述节点电压成反比的电压; 斜坡发生器接收同步输入信号并产生斜坡信号; 比较反向比例电压与斜坡信号的比较器; 以及用于根据比较器的输出产生时钟信号的脉冲发生器。

公开(公告)号：US08605845B2

公开(公告)日：2013-12-10

申请号：US12930941

申请日：2011-01-20

申请人： Isaac Chen ,  An-Tung Chen

发明人： Isaac Chen ,  An-Tung Chen

IPC分类号： H04L7/00 ,  H02J3/12 ,  G05F1/10

CPC分类号： H03K5/15073 ,  G06F1/04 ,  H02J3/01 ,  H02M2003/1586 ,  Y10T307/50 ,  Y10T307/707

摘要： The present invention discloses an adaptive phase-shifted synchronization clock generation circuit and a method for generating phase-shifted synchronization clock. The adaptive phase-shifted synchronization clock generation circuit includes: a current source generating a current which flows through a node to generate a node voltage on the node; a reverse-proportional voltage generator coupled to the node for generating a voltage which is reverse-proportional to the node voltage; a ramp generator receiving a synchronization input signal and generating a ramp signal; a comparator comparing the reverse-proportional voltage to the ramp signal; and a pulse generator for generating a clock signal according to an output from the comparator.

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：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：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。