公开(公告)号：US20130221940A1

公开(公告)日：2013-08-29

申请号：US13404558

申请日：2012-02-24

申请人： Shouli Yan ,  Dazhi Wei ,  Alan L. Westwick

发明人： Shouli Yan ,  Dazhi Wei ,  Alan L. Westwick

IPC分类号： G05F1/10

CPC分类号： G05F1/565

摘要： A technique includes using a pass device of a linear regulator to provide an output signal for the linear regulator in response to a signal that is received at a control terminal of the pass device. The control terminal is coupled to a node, and the node is associated with a bias current. The technique includes using a feedback path to communicate a feedback current with the node to regulate the output signal. The use of the feedback path includes regulating a magnitude of the feedback current to be within a range of magnitudes, which include a magnitude that exceeds a magnitude of the bias current.

摘要翻译： 一种技术包括使用线性调节器的通过装置来响应于在通过装置的控制端子处接收到的信号来为线性调节器提供输出信号。 控制终端耦合到节点，节点与偏置电流相关联。 该技术包括使用反馈路径将反馈电流与节点通信以调节输出信号。 反馈路径的使用包括将反馈电流的幅度调节在包括超过偏置电流的幅度的幅度的幅度范围内。

公开(公告)号：US09041569B2

公开(公告)日：2015-05-26

申请号：US13931767

申请日：2013-06-28

申请人： Yan Zhou ,  Clayton Daigle ,  Shouli Yan ,  Mohamed Elsayed

发明人： Yan Zhou ,  Clayton Daigle ,  Shouli Yan ,  Mohamed Elsayed

IPC分类号： H03M1/06

CPC分类号： H03M1/0617 ,  H03M1/1047 ,  H03M1/466

摘要： A successive approximation register (SAR) ADC includes an SAR comparator circuit including first and second inputs, a control input, and first and second outputs. The SAR comparator circuit further includes a plurality of capacitors coupled to the first and second inputs and includes a plurality of switches configured to couple the plurality of capacitors to one of a first voltage and a second voltage. The SAR ADC further includes a calibration circuit coupled to the first and second outputs and to the control input of the SAR comparator. The calibration circuit is configured to control the plurality of switches to selectively couple the plurality of capacitors to one of the first and second voltages to provide a calibration signal to the SAR comparator circuit. The calibration circuit is configured to calibrate the SAR comparator based on corresponding output signals at the first and second outputs.

摘要翻译： 逐次逼近寄存器（SAR）ADC包括包括第一和第二输入，控制输入以及第一和第二输出的SAR比较器电路。 SAR比较器电路还包括耦合到第一和第二输入的多个电容器，并且包括被配置为将多个电容器耦合到第一电压和第二电压中的一个的多个开关。 SAR ADC还包括耦合到第一和第二输出和SAR比较器的控制输入的校准电路。 校准电路被配置为控制多个开关以选择性地将多个电容器耦合到第一和第二电压之一，以向SAR比较器电路提供校准信号。 校准电路被配置为基于在第一和第二输出处的相应输出信号校准SAR比较器。

公开(公告)号：US20140333465A1

公开(公告)日：2014-11-13

申请号：US13892235

申请日：2013-05-10

申请人： Mohamed Elsayed ,  Xiaodong Wang ,  Shouli Yan

发明人： Mohamed Elsayed ,  Xiaodong Wang ,  Shouli Yan

IPC分类号： H03M1/12

CPC分类号： H03M1/0845 ,  H03M1/466

摘要： A voltage reference circuit includes a capacitor including a first terminal and including a second terminal coupled to a power supply node. The voltage reference circuit further includes an amplifier, a first transistor, and a switch. The amplifier includes a first input configured to receive a reference voltage input signal, a second input configured to receive a feedback signal, and an output. The first transistor includes a source coupled to the second input of the amplifier and to an output node, a gate coupled to the capacitor, and a drain. The first transistor is configured to provide a reference voltage at the source based on a charge provided to the gate by the capacitor. The switch includes a first terminal coupled to the output of the amplifier, and includes a second terminal coupled to the first terminal of the capacitor.

摘要翻译： 电压参考电路包括包括第一端子并且包括耦合到电源节点的第二端子的电容器。 电压参考电路还包括放大器，第一晶体管和开关。 放大器包括被配置为接收参考电压输入信号的第一输入，被配置为接收反馈信号的第二输入和输出。 第一晶体管包括耦合到放大器的第二输入端和输出节点的源极，耦合到电容器的栅极和漏极。 第一晶体管被配置为基于由电容器提供给栅极的电荷在源极处提供参考电压。 开关包括耦合到放大器的输出的第一端子，并且包括耦合到电容器的第一端子的第二端子。

公开(公告)号：US08384573B2

公开(公告)日：2013-02-26

申请号：US12122368

申请日：2008-05-16

申请人： Xiaohong Li ,  Shouli Yan ,  Zhiheng Cao

发明人： Xiaohong Li ,  Shouli Yan ,  Zhiheng Cao

IPC分类号： H03M3/00

CPC分类号： H03M3/504 ,  H03F3/2175

摘要： A digital-to-analog converter (DAC) with a digital segment having a digital data input and an analog segment coupled to the digital segment and having an analog output to output an analog signal corresponding to the digital data. The analog segment includes one or more gain stages and a feedback structure to couple the analog output to the one or more gain stages to attenuate signal distortion at the analog output. A combined gain of the one or more gain stages determines a signal distortion attenuation characteristic of the analog segment.

摘要翻译： 具有数字分段的数模转换器（DAC）具有数字数据输入和耦合到数字段的模拟分段并且具有模拟输出以输出对应于数字数据的模拟信号。 模拟段包括一个或多个增益级和用于将模拟输出耦合到一个或多个增益级的反馈结构，以衰减模拟输出处的信号失真。 一个或多个增益级的组合增益确定模拟段的信号失真衰减特性。

公开(公告)号：US07902627B2

公开(公告)日：2011-03-08

申请号：US12414387

申请日：2009-03-30

申请人： Zhiwei Dong ,  Shouli Yan ,  Axel Thomsen ,  William W. K. Tang ,  Ka Y. Leung

发明人： Zhiwei Dong ,  Shouli Yan ,  Axel Thomsen ,  William W. K. Tang ,  Ka Y. Leung

IPC分类号： H01L25/00

CPC分类号： H01L23/66 ,  H01L24/48 ,  H01L24/49 ,  H01L2223/6611 ,  H01L2224/05554 ,  H01L2224/48095 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/48464 ,  H01L2224/49096 ,  H01L2224/49171 ,  H01L2224/49175 ,  H01L2924/00014 ,  H01L2924/01014 ,  H01L2924/01015 ,  H01L2924/01023 ,  H01L2924/01027 ,  H01L2924/01033 ,  H01L2924/01082 ,  H01L2924/14 ,  H01L2924/19041 ,  H01L2924/19042 ,  H01L2924/19043 ,  H01L2924/30105 ,  H01L2924/30107 ,  H01L2924/3011 ,  H03K17/689 ,  H04L5/14 ,  H04L25/0268 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2924/00012

摘要： An integrated circuit having voltage isolation capabilities comprising a first galvanically isolated area of the integrated circuit containing a first group of functional circuitry for processing a data stream. The first group of functional circuitry located in a substrate of the integrated circuit. Capacitive isolation circuitry located in conductive layers of the integrated circuit provides a high voltage isolation link between the first group of functional circuitry and a second group of functional circuitry connected to the integrated circuit through the capacitive isolation circuitry. The capacitive isolation circuitry includes a differential transmitter for transmitting data in a differential signal to the second group of functional circuitry via the capacitive isolation circuitry. A differential receiver receives data within the differential signal from the second group of functional circuitry via the capacitive isolation circuitry. A detector circuit within the differential receiver detects the received data. The detector circuit monitors the differential signal and generates a first logical output when a voltage generated responsive to the differential signal exceeds a programmable voltage threshold level and generates a second logical output when the voltage generated responsive to the differential signal falls below the programmable voltage threshold level.

摘要翻译： 一种具有电压隔离能力的集成电路，包括集成电路的第一电隔离区域，其包含用于处理数据流的第一组功能电路。 位于集成电路的基板中的第一组功能电路。 位于集成电路的导电层中的电容隔离电路在第一组功能电路之间提供高电压隔离连接，以及通过电容隔离电路连接到集成电路的第二组功能电路。 电容隔离电路包括用于经由电容隔离电路将差分信号中的数据传送到第二组功能电路的差分发射器。 差分接收器经由电容隔离电路从第二组功能电路接收差分信号内的数据。 差分接收器内的检测器电路检测接收到的数据。 当响应于差分信号产生的电压超过可编程电压阈值电平时，检测器电路监视差分信号并产生第一逻辑输出，并且当响应于差分信号产生的电压低于可编程电压阈值电平时产生第二逻辑输出 。

公开(公告)号：US08922418B2

公开(公告)日：2014-12-30

申请号：US13892235

申请日：2013-05-10

申请人： Mohamed Elsayed ,  Xiaodong Wang ,  Shouli Yan

发明人： Mohamed Elsayed ,  Xiaodong Wang ,  Shouli Yan

IPC分类号： H03M1/12

CPC分类号： H03M1/0845 ,  H03M1/466

摘要： A voltage reference circuit includes a capacitor including a first terminal and including a second terminal coupled to a power supply node. The voltage reference circuit further includes an amplifier, a first transistor, and a switch. The amplifier includes a first input configured to receive a reference voltage input signal, a second input configured to receive a feedback signal, and an output. The first transistor includes a source coupled to the second input of the amplifier and to an output node, a gate coupled to the capacitor, and a drain. The first transistor is configured to provide a reference voltage at the source based on a charge provided to the gate by the capacitor. The switch includes a first terminal coupled to the output of the amplifier, and includes a second terminal coupled to the first terminal of the capacitor.

摘要翻译： 电压参考电路包括包括第一端子并且包括耦合到电源节点的第二端子的电容器。 电压参考电路还包括放大器，第一晶体管和开关。 放大器包括被配置为接收参考电压输入信号的第一输入，被配置为接收反馈信号的第二输入和输出。 第一晶体管包括耦合到放大器的第二输入端和输出节点的源极，耦合到电容器的栅极和漏极。 第一晶体管被配置为基于由电容器提供给栅极的电荷在源极处提供参考电压。 开关包括耦合到放大器的输出的第一端子，并且包括耦合到电容器的第一端子的第二端子。

公开(公告)号：US20120241905A1

公开(公告)日：2012-09-27

申请号：US13072293

申请日：2011-03-25

申请人： William W.K. Tang ,  Shouli Yan ,  Zhiwei Dong

发明人： William W.K. Tang ,  Shouli Yan ,  Zhiwei Dong

IPC分类号： H01L29/92 ,  H01L21/02

CPC分类号： H01L28/40 ,  H01L21/76 ,  H01L23/5223 ,  H01L27/0207 ,  H01L27/0805 ,  H01L2924/0002 ,  H01L2924/00

摘要： An integrated circuit includes a conductive substrate pick-up region in the substrate that forms a perimeter around a portion of the substrate. Conductive stripes traverse the portion of the substrate within the perimeter and are coupled to a low impedance node along with the substrate pick-up region. A capacitor has a bottom plate formed above the conductive stripes. The pick-up region and the conductive stripes absorb injected current caused by parasitic capacitance between the bottom plate of the capacitor and the substrate region thereby reducing cross-talk caused by the injected current.

摘要翻译： 集成电路包括在衬底中形成围绕衬底的一部分的周边的导电衬底拾取区域。 导电条纹遍及周边的衬底部分，并与衬底拾取区域一起耦合到低阻抗节点。 电容器具有形成在导电条上的底板。 拾取区域和导电条纹吸收由电容器的底板和衬底区域之间的寄生电容引起的注入电流，从而减少由注入电流引起的串扰。

公开(公告)号：US06501332B1

公开(公告)日：2002-12-31

申请号：US09615377

申请日：2000-07-13

申请人： Shouli Yan

发明人： Shouli Yan

IPC分类号： H03F136

CPC分类号： H03F3/45959 ,  H03F1/3223 ,  H03F3/68

摘要： An apparatus and method for utilizing a correction loop amplifier in conjunction with a main amplifier to produce signal amplification with low total harmonic distortion. The correction amplifier preferably has one input directly coupled to a first input of the main amplifier, and an output coupled to a second input of the main amplifier via a resistor. The second input of the correction amplifier is preferably coupled to a signal input via a voltage divider or RC network. A preferred embodiment configuration provides a power amplifier with improved THD over prior art circuits. The circuit is very flexible, and may incorporate low, high or band pass filter functions if desired. In addition, the power amplifier may be implemented in any combination of single or differential inputs and outputs.

摘要翻译： 一种用于与主放大器结合使用校正环路放大器以产生低总谐波失真的信号放大的装置和方法。 校正放大器优选地具有直接耦合到主放大器的第一输入的一个输入和经由电阻耦合到主放大器的第二输入的输出。 校正放大器的第二输入优选地经由分压器或RC网络耦合到输入的信号。 优选的实施例配置提供了一种功率放大器，其具有比现有技术电路更好的THD。 该电路非常灵活，如果需要，可以并入低，高或带通滤波器功能。 此外，功率放大器可以以单个或差分输入和输出的任何组合来实现。

公开(公告)号：US09874887B2

公开(公告)日：2018-01-23

申请号：US13404981

申请日：2012-02-24

申请人： Shouli Yan ,  Alan Westwick

发明人： Shouli Yan ,  Alan Westwick

IPC分类号： G05F1/00 ,  G05F1/565

CPC分类号： G05F1/565

摘要： A voltage regulator circuit with variable feedback is disclosed. In one embodiment, a voltage regulator includes an amplifier having a first input configured to receive a reference voltage and a second input configured to receive a feedback signal. The voltage regulator further includes first and second transistors each having respective gate terminals coupled to an output of the amplifier. A resistor network coupled to the second input of the amplifier and further coupled to the first and second transistors. The resistor network is configured to produce the feedback signal based on currents through the first and second transistors, respectively.

公开(公告)号：US20150002321A1

公开(公告)日：2015-01-01

申请号：US13931767

申请日：2013-06-28

申请人： Yan Zhou ,  Clayton Daigle ,  Shouli Yan ,  Mohamed Elsayed

发明人： Yan Zhou ,  Clayton Daigle ,  Shouli Yan ,  Mohamed Elsayed

IPC分类号： H03M1/06

CPC分类号： H03M1/0617 ,  H03M1/1047 ,  H03M1/466

摘要： A successive approximation register (SAR) ADC includes an SAR comparator circuit including first and second inputs, a control input, and first and second outputs. The SAR comparator circuit further includes a plurality of capacitors coupled to the first and second inputs and includes a plurality of switches configured to couple the plurality of capacitors to one of a first voltage and a second voltage. The SAR ADC further includes a calibration circuit coupled to the first and second outputs and to the control input of the SAR comparator. The calibration circuit is configured to control the plurality of switches to selectively couple the plurality of capacitors to one of the first and second voltages to provide a calibration signal to the SAR comparator circuit. The calibration circuit is configured to calibrate the SAR comparator based on corresponding output signals at the first and second outputs.

摘要翻译： 逐次逼近寄存器（SAR）ADC包括包括第一和第二输入，控制输入以及第一和第二输出的SAR比较器电路。 SAR比较器电路还包括耦合到第一和第二输入的多个电容器，并且包括被配置为将多个电容器耦合到第一电压和第二电压之一的多个开关。 SAR ADC还包括耦合到第一和第二输出和SAR比较器的控制输入的校准电路。 校准电路被配置为控制多个开关以选择性地将多个电容器耦合到第一和第二电压之一，以向SAR比较器电路提供校准信号。 校准电路被配置为基于在第一和第二输出处的相应输出信号校准SAR比较器。