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：US08203321B2

公开(公告)日：2012-06-19

申请号：US12461106

申请日：2009-07-31

申请人： Nai-Yuan Liang ,  Isaac Y. Chen ,  Shao-Hung Lu

发明人： Nai-Yuan Liang ,  Isaac Y. Chen ,  Shao-Hung Lu

IPC分类号： G05F1/613

CPC分类号： H02M3/1584 ,  H03K17/6871 ,  Y10S323/907

摘要： A DrMOS combines a high side power MOSFET, a low side power MOSFET and a driver circuit for driving the power MOSFETs with current balance and thermal balance mechanism and variable phase control circuit on a single chip.

摘要翻译： DrMOS结合了高边功率MOSFET，低功率MOSFET和驱动电路，用于在单个芯片上驱动具有电流平衡和热平衡机制的功率MOSFET以及可变相位控制电路。

公开(公告)号：US20110260765A1

公开(公告)日：2011-10-27

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： H03K3/289

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：US08786267B2

公开(公告)日：2014-07-22

申请号：US13093205

申请日：2011-04-25

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

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

IPC分类号： G05F1/00

CPC分类号： H02M3/1588 ,  H02M2001/0009 ,  H02M2001/0032 ,  Y02B70/1466 ,  Y02B70/16

摘要： A feedback loop is used to optimize a zero current threshold for a switching regulator. After the low side power switch of the switching regulator turns off, the switching node state is monitored to adjust the zero current threshold in a real time and thus the low-side power switch is prevented from turning off too early or too late. Thereby the efficiency in green mode is optimized.

摘要翻译： 反馈回路用于优化开关稳压器的零电流阈值。 在开关稳压器的低侧电源开关关断后，监视开关节点状态，实时调整零电流阈值，防止低端电源开关过早关断。 从而优化了绿色模式的效率。

公开(公告)号：US20120306459A1

公开(公告)日：2012-12-06

申请号：US13478015

申请日：2012-05-22

申请人： Jyun-Che Ho ,  Chien-Fu Tang ,  Isaac Y. Chen ,  Shao-Hung Lu ,  Tzu-Chen Lin

发明人： Jyun-Che Ho ,  Chien-Fu Tang ,  Isaac Y. Chen ,  Shao-Hung Lu ,  Tzu-Chen Lin

IPC分类号： G05F1/70

CPC分类号： H05B33/0818

摘要： The present invention discloses a power factor correction circuit, a control circuit therefor and a method for driving a power factor correction circuit. The power factor correction circuit receives rectified power obtained by rectifying AC power, and corrects the power factor thereof. The power factor correction circuit includes an inductor, and it generates a reference signal as a limit for the inductor current. The reference signal is proportional to Comp/Vin, wherein Comp is a signal relating to a feedback signal, and Vin is a voltage signal relating to the AC power or the rectified power.

摘要翻译： 本发明公开了一种功率因数校正电路及其控制电路及驱动功率因数校正电路的方法。 功率因数校正电路接收通过整流交流电源而得到的整流功率，校正其功率因数。 功率因数校正电路包括电感器，并产生参考信号作为电感电流的限制。 参考信号与Comp / Vin成比例，其中Comp是与反馈信号相关的信号，Vin是与AC电力或整流功率有关的电压信号。

公开(公告)号：US20110260799A1

公开(公告)日：2011-10-27

申请号：US13087515

申请日：2011-04-15

申请人： SHAO-HUNG LU ,  ISAAC Y. CHEN

发明人： SHAO-HUNG LU ,  ISAAC Y. CHEN

IPC分类号： H03L7/00

CPC分类号： H03L7/099

摘要： A frequency setting circuit and method for an integrated circuit detect the voltage at a pin of the integrated circuit during a frequency setting period, and determine a frequency setting signal according to the detected voltage to set the frequency of a clock provided by an oscillator in the integrated circuit. After setting the frequency, the frequency setting circuit and method store the frequency setting signal and stop detecting the voltage at the pin. Thus the pin can be used for other functions.

摘要翻译： 用于集成电路的频率设定电路和方法在频率设定期间检测集成电路的引脚上的电压，并根据检测到的电压来确定频率设定信号，以将振荡器提供的时钟的频率设置在 集成电路。 设定频率后，频率设定电路和方法存储频率设定信号，停止检测引脚电压。 因此，该引脚可用于其他功能。

公开(公告)号：US20110169546A1

公开(公告)日：2011-07-14

申请号：US12985587

申请日：2011-01-06

申请人： YUEH-MING CHEN ,  ISAAC Y. CHEN ,  SHAO-HUNG LU

发明人： YUEH-MING CHEN ,  ISAAC Y. CHEN ,  SHAO-HUNG LU

IPC分类号： G06G7/16

CPC分类号： G06G7/16

摘要： A mix mode wide range multiplier and method are provided for multiplying a first signal by a second signal to generate an output signal. A reference signal is generated according to a first gain and a reference value, the output signal is generated according to a second gain and the first signal, a target value is generated according to the second signal, the first gain is adjusted to make the reference signal equal to the target value, and the second gain is adjusted to maintain a ratio of the second gain to the first gain.

摘要翻译： 提供混合模式宽范围乘法器和方法，用于将第一信号乘以第二信号以产生输出信号。 根据第一增益和参考值生成参考信号，根据第二增益生成输出信号，并且根据第二信号生成目标值，调整第一增益以使参考信号 信号等于目标值，并且调整第二增益以保持第二增益与第一增益的比率。

公开(公告)号：US08907648B2

公开(公告)日：2014-12-09

申请号：US13478015

申请日：2012-05-22

申请人： Jyun-Che Ho ,  Chien-Fu Tang ,  Isaac Y. Chen ,  Shao-Hung Lu ,  Tzu-Chen Lin

发明人： Jyun-Che Ho ,  Chien-Fu Tang ,  Isaac Y. Chen ,  Shao-Hung Lu ,  Tzu-Chen Lin

IPC分类号： G05F1/00 ,  H05B33/08

CPC分类号： H05B33/0818

摘要： The present invention discloses a power factor correction circuit, a control circuit therefor and a method for driving a power factor correction circuit. The power factor correction circuit receives rectified power obtained by rectifying AC power, and corrects the power factor thereof. The power factor correction circuit includes an inductor, and it generates a reference signal as a limit for the inductor current. The reference signal is proportional to Comp/Vin, wherein Comp is a signal relating to a feedback signal, and Vin is a voltage signal relating to the AC power or the rectified power.

摘要翻译： 本发明公开了一种功率因数校正电路及其控制电路及驱动功率因数校正电路的方法。 功率因数校正电路接收通过整流交流电源而得到的整流功率，校正其功率因数。 功率因数校正电路包括电感器，并产生参考信号作为电感电流的限制。 参考信号与Comp / Vin成比例，其中Comp是与反馈信号相关的信号，Vin是与AC电力或整流功率有关的电压信号。

公开(公告)号：US08698472B2

公开(公告)日：2014-04-15

申请号：US12984066

申请日：2011-01-04

申请人： Tsung-Hsi Yang ,  Shao-Hung Lu ,  Isaac Y. Chen ,  Wei-Haur Chan

发明人： Tsung-Hsi Yang ,  Shao-Hung Lu ,  Isaac Y. Chen ,  Wei-Haur Chan

IPC分类号： G05F1/00 ,  G05F1/565 ,  G05F1/618 ,  G05F3/16

CPC分类号： H02M3/155 ,  H02M2001/0032 ,  H03K17/6871 ,  H03K2217/0036 ,  H03K2217/0081 ,  Y02B70/16

摘要： An adjustable driver voltage source for a switching power supply uses a linear regulator to provide a driver voltage, and a modulator to adjust the driver voltage according to the loading change of the switching power supply. The modulator may lower the driver voltage at light load to reduce the switching loss and thereby increase the power efficiency of the switching power supply.

摘要翻译： 用于开关电源的可调节驱动器电压源使用线性调节器来提供驱动器电压，以及调制器，以根据开关电源的负载变化来调节驱动器电压。 调制器可以在轻负载时降低驱动器电压，从而降低开关损耗，从而提高开关电源的功率效率。

公开(公告)号：US08203379B2

公开(公告)日：2012-06-19

申请号：US12985563

申请日：2011-01-06

申请人： Yueh-Ming Chen ,  Isaac Y Chen ,  Shao-Hung Lu

发明人： Yueh-Ming Chen ,  Isaac Y Chen ,  Shao-Hung Lu

IPC分类号： G05F3/02

CPC分类号： G05F1/575

摘要： A mix mode wide range divider is provided for dividing a first signal by a second signal to generate an output signal. A third signal is generated depending on the resistance of a first adjustable resistor, and a fourth signal is generated according to the third signal and a target value determined by the second signal, to adjust the resistance of the first adjustable resistor and the resistance of a second adjustable resistor. The resistance of the first adjustable resistor is so adjusted to make the third signal equal to the target value, and the resistance of the second adjustable resistor is so adjusted to maintain a ratio of the resistance of the second adjustable resistor to the resistance of the first adjustable resistor. The output signal is generated depending on the first signal and the resistance of the second adjustable resistor.

摘要翻译： 提供混合模式宽范围分频器，用于将第一信号除以第二信号以产生输出信号。 根据第一可调电阻器的电阻产生第三信号，并且根据第三信号和由第二信号确定的目标值产生第四信号，以调整第一可调电阻器的电阻和第一可调电阻器的电阻 第二可调电阻 第一可调电阻器的电阻被调整以使第三信号等于目标值，并且调整第二可调电阻器的电阻以保持第二可调电阻器的电阻与第一可调电阻器的电阻的比率 可调电阻 输出信号根据第一可变电阻器的第一信号和电阻产生。