公开(公告)号：US08193850B2

公开(公告)日：2012-06-05

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： G06F7/44 ,  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：US20120112816A1

公开(公告)日：2012-05-10

申请号：US13287828

申请日：2011-11-02

申请人： Jo-Yu WANG ,  Isaac Y. Chen

发明人： Jo-Yu WANG ,  Isaac Y. Chen

IPC分类号： H03K17/687

CPC分类号： H03K19/1732 ,  G06F1/22 ,  G06F1/28 ,  H03K17/22

摘要： A first switch is switched to short a multi-functional pin of an integrated circuit to a ground terminal or let a current supplied to the multi-functional pin to flow to a second switch connected to the multi-functional pin. Before the integrated circuit is ready, the second switch is closed circuit and is detected its current to determine a first signal to enable or disable the integrated circuit. After the integrated circuit is ready, the second switch is open circuit, the voltage at the multi-functional pin is detected to determine a second signal to enable or disable the integrated circuit, and when the voltage at the multi-functional pin is higher than a threshold, a power good signal is triggered.

摘要翻译： 第一开关被切换成将集成电路的多功能引脚短接到接地端子，或者使提供给多功能引脚的电流流到连接到多功能引脚的第二开关。 在集成电路准备就绪之前，第二开关是闭合电路，并且检测其电流以确定第一信号以使能或禁用集成电路。 集成电路准备就绪后，第二开关断开，检测多功能引脚上的电压，确定第二个信号使能或禁止集成电路，并且当多功能引脚的电压高于 阈值，电源良好信号被触发。

公开(公告)号：US20110298436A1

公开(公告)日：2011-12-08

申请号：US12927280

申请日：2010-11-10

申请人： Chien Fu Tang ,  Isaac Y. Chen ,  Pei-kai Tseng

发明人： Chien Fu Tang ,  Isaac Y. Chen ,  Pei-kai Tseng

IPC分类号： G05F1/00

CPC分类号： H02M1/38 ,  H03K17/162 ,  H03K2217/0063 ,  H03K2217/0072

摘要： The present invention discloses a control circuit of a switching regulator wherein a confirmation signal is generated to confirm that an upper gate switch has been turned off, to avoid shoot-through. The confirmation signal is generated by obtaining an upper gate sampling signal from a transistor in a level shift circuit which receives a resetting signal for turning off the upper gate switch.

摘要翻译： 本发明公开了一种开关调节器的控制电路，其中产生确认信号以确认上部门极开关已经被关闭，以避免直通。 通过从接收用于关闭上部栅极开关的复位信号的电平移位电路中的晶体管获得上部栅极采样信号来产生确认信号。

公开(公告)号：US20110267128A1

公开(公告)日：2011-11-03

申请号：US13093070

申请日：2011-04-25

申请人： ISAAC Y. CHEN ,  JO-YU WANG

发明人： ISAAC Y. CHEN ,  JO-YU WANG

IPC分类号： H03L5/00

CPC分类号： H03K19/00369

摘要： A parameter setting circuit and method for an integrated circuit apply a pulse current to a pin of the integrated circuit during a programming mode of the integrated circuit, and then extract the difference between the voltage on the pin and the DC component of the voltage on the pin to determine a setting signal for parameter setting to an internal circuit of the integrated circuit. By this way, an input pin, an output pin or an input/output pin of the integrated circuit may be used as the pin implementing the parameter setting function.

摘要翻译： 集成电路的参数设置电路和方法在集成电路的编程模式期间将脉冲电流施加到集成电路的引脚，然后提取引脚上的电压与电压上的DC分量之间的差异 引脚，以确定用于集成电路内部电路的参数设置的设置信号。 通过这种方式，可以使用集成电路的输入引脚，输出引脚或输入/输出引脚作为实现参数设置功能的引脚。

公开(公告)号：US20110267015A1

公开(公告)日：2011-11-03

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： G05F1/618

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：US20110163785A1

公开(公告)日：2011-07-07

申请号：US12977662

申请日：2010-12-23

申请人： ISAAC Y. CHEN ,  AN-TUNG CHEN

发明人： ISAAC Y. CHEN ,  AN-TUNG CHEN

IPC分类号： H03L7/00 ,  G06F1/04

CPC分类号： G06F1/04

摘要： An apparatus for interleaved phase shift clock synchronization includes a master clock generator and at least one slave clock generator. The master clock generator provides a ramp signal or reset signal for each slave clock generator to generate a clock synchronized with the clock of the master clock generator, and the master and slave clock generators have different reference voltages for generating clocks. Therefore, the clocks generated will be synchronized and interleaved phase with each other.

摘要翻译： 用于交错相移时钟同步的装置包括主时钟发生器和至少一个从时钟发生器。 主时钟发生器为每个从时钟发生器提供斜坡信号或复位信号，以产生与主时钟发生器的时钟同步的时钟，并且主时钟和从时钟发生器具有不同的参考电压用于产生时钟。 因此，产生的时钟将彼此同步并交错相位。

公开(公告)号：US20100220805A1

公开(公告)日：2010-09-02

申请号：US12684440

申请日：2010-01-08

申请人： Isaac Y. Chen

发明人： Isaac Y. Chen

IPC分类号： H04L25/34

CPC分类号： H04L25/4923 ,  H04L5/04 ,  H04L7/044

摘要： The present invention discloses a single-wire asynchronous serial interface, and a method for transmitting commands and data through one transmission wire, wherein the transmission wire is capable of transmitting signals of three level states. The disclosed interface comprises a signal level extraction circuit receiving signals transmitted through the wire and outputting logic or functional bits according to the received signals; a clock extraction circuit generating clock signals according to the functional bits, and a memory circuit controlled by the clock signals and storing the logic bits. The disclosed method comprises: using two of the level states to represent logic 0 and logic 1, and the third of the states as a functional bit; and determining whether a group of signals is a command or data by the existence of a functional bit within the group.

摘要翻译： 本发明公开了一种单线异步串行接口，以及一种通过一条传输线传输命令和数据的方法，其中传输线能传输三电平状态信号。 所公开的接口包括：信号电平提取电路，接收通过线路传输的信号，并根据接收到的信号输出逻辑或功能位; 根据功能位产生时钟信号的时钟提取电路和由时钟信号控制并存储逻辑比特的存储器电路。 所公开的方法包括：使用两个电平状态来表示逻辑0和逻辑1，并且将第三个状态用作功能位; 以及通过所述组内的功能位的存在来确定一组信号是否是命令或数据。

公开(公告)号：US07315190B1

公开(公告)日：2008-01-01

申请号：US11454459

申请日：2006-06-16

申请人： Isaac Y. Chen

发明人： Isaac Y. Chen

IPC分类号： H03K3/017

CPC分类号： H03K7/08

摘要： The present invention discloses a PWM integrated circuit which may receive a programming signal without any extra pin. The PWM integrated circuit comprises: a comparator having two outputs; two pins respectively electrically connected with the two outputs; and a programming unit electrically connected with at least one of the two pins for setting a parameter inside the PWM integrated circuit. The two pins of the PWM integrated circuit may be used to respectively control a control switch and a synchronous switch, constituting a PWM circuit for generating PWM signals.

摘要翻译： 本发明公开了一种PWM集成电路，其可以在没有任何额外的引脚的情况下接收编程信号。 PWM集成电路包括：具有两个输出的比较器; 两个引脚分别与两个输出端电连接; 以及编程单元，与所述两个引脚中的至少一个电连接，用于在所述PWM集成电路内设置参数。 PWM集成电路的两个引脚可以分别用于控制控制开关和同步开关，构成用于产生PWM信号的PWM电路。

公开(公告)号：US20070290729A1

公开(公告)日：2007-12-20

申请号：US11454459

申请日：2006-06-16

申请人： Isaac Y. Chen

发明人： Isaac Y. Chen

IPC分类号： H03K3/017

CPC分类号： H03K7/08

摘要： The present invention discloses a PWM integrated circuit which may receive a programming signal without any extra pin. The PWM integrated circuit comprises: a comparator having two outputs; two pins respectively electrically connected with the two outputs; and a programming unit electrically connected with at least one of the two pins for setting a parameter inside the PWM integrated circuit. The two pins of the PWM integrated circuit may be used to respectively control a control switch and a synchronous switch, constituting a PWM circuit for generating PWM signals.

摘要翻译： 本发明公开了一种PWM集成电路，其可以在没有任何额外的引脚的情况下接收编程信号。 PWM集成电路包括：具有两个输出的比较器; 两个引脚分别与两个输出端电连接; 以及编程单元，与所述两个引脚中的至少一个电连接，用于在所述PWM集成电路内设置参数。 PWM集成电路的两个引脚可以分别用于控制控制开关和同步开关，构成用于产生PWM信号的PWM电路。

公开(公告)号：US09479063B2

公开(公告)日：2016-10-25

申请号：US13567272

申请日：2012-08-06

申请人： Jiun-Hung Pan ,  Chien-Fu Tang ,  Isaac Y. Chen

发明人： Jiun-Hung Pan ,  Chien-Fu Tang ,  Isaac Y. Chen

IPC分类号： H02M3/335 ,  H02M1/44 ,  H02M3/156

CPC分类号： H03K7/08 ,  H02M1/08 ,  H02M1/44 ,  H02M3/156 ,  H02M3/33507 ,  H02M3/33515 ,  H02M3/33523 ,  H02M3/33546 ,  H02M2001/0009 ,  H02M2003/1566 ,  H03K2005/00019

摘要： A frequency jittering control circuit for a PFM power supply includes a pulse frequency modulator to generate a frequency jittering control signal to switch a power switch to generate an output voltage. The frequency jittering control circuit jitters an input signal or an on-time or off-time of the pulse frequency modulator to jitter the switching frequency of the power switch to thereby improve EMI issue.

摘要翻译： 用于PFM电源的频率抖动控制电路包括脉冲频率调制器，用于产生频率抖动控制信号以切换电源开关以产生输出电压。 频率抖动控制电路使脉冲频率调制器的输入信号或导通时间或关断时间抖动，以抖动电源开关的开关频率，从而改善EMI问题。