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1. 发明授权

US08169108B2 Capacitive isolator 有权
标题翻译：电容隔离器
公开(公告)号：US08169108B2
公开(公告)日：2012-05-01
申请号：US12060049
申请日：2008-03-31
申请人： Timothy Dupuis , Axel Thomsen , Zhiwei Dong , Ka Y. Leung
发明人： Timothy Dupuis , Axel Thomsen , Zhiwei Dong , Ka Y. Leung
IPC分类号： H04B1/18
CPC分类号： H01L23/66 , H01L23/49503 , H01L23/4952 , H01L23/49575 , H01L24/06 , H01L24/48 , H01L24/49 , H01L2223/6611 , H01L2224/05553 , H01L2224/05554 , H01L2224/48095 , H01L2224/48137 , H01L2224/48247 , 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 , H04B2203/5491 , H04L25/0268 , H01L2924/00 , H01L2224/45099
摘要： An integrated circuit provides high voltage isolation capabilities. The circuit includes a first area containing a first group of functional circuitry located in a substrate of the integrated circuit. This circuit also includes a second area containing a second group of functional circuitry also contained within the substrate of the integrated circuit. Capacitive isolation circuitry located in the conductive layers in the integrated circuit provide a high voltage isolation link between the first group of functional circuitry and the second group of functional circuitry. The capacitive isolation circuitry distributes a first portion of the high voltage isolation signal across the first group of capacitors in the capacitive isolation circuitry and distributes a second portion of the high voltage isolation circuitry across the second group of capacitors in the capacitive isolation circuitry.
摘要翻译：集成电路提供高电压隔离功能。电路包括第一区域，其包含位于集成电路的衬底中的第一组功能电路。该电路还包括第二区域，其包含也包含在集成电路的衬底内的第二组功能电路。位于集成电路中的导电层中的电容隔离电路在第一组功能电路和第二组功能电路之间提供高电压隔离连接。电容隔离电路将高电压隔离信号的第一部分分布在电容隔离电路中的第一组电容器上，并将高压隔离电路的第二部分分布在电容隔离电路中的第二组电容器上。

2. 发明授权

US08441325B2 Isolator with complementary configurable memory 有权
标题翻译：隔离器具有互补的可配置存储器
公开(公告)号：US08441325B2
公开(公告)日：2013-05-14
申请号：US12494618
申请日：2009-06-30
申请人： Phil A. Callahan , Ahsan Javed , Zhiwei Dong , Axel Thomsen , Donald E. Alfano , Timothy Dupuis , Ka Y. Leung
发明人： Phil A. Callahan , Ahsan Javed , Zhiwei Dong , Axel Thomsen , Donald E. Alfano , Timothy Dupuis , Ka Y. Leung
IPC分类号： H03H2/00 , H04B3/00
CPC分类号： H01L24/48 , H01L23/49503 , H01L23/4952 , H01L23/49575 , H01L23/642 , H01L23/66 , H01L24/06 , H01L24/49 , H01L25/0655 , H01L2223/6611 , H01L2224/04042 , H01L2224/05554 , H01L2224/05599 , H01L2224/48091 , H01L2224/48137 , H01L2224/48247 , H01L2224/48472 , H01L2224/49171 , H01L2224/49175 , H01L2224/85399 , H01L2924/00014 , H01L2924/01006 , H01L2924/01015 , H01L2924/01023 , H01L2924/01033 , H01L2924/01082 , H01L2924/13091 , H01L2924/14 , H01L2924/19041 , H01L2924/19042 , H01L2924/19043 , H04B2203/5491 , H01L2224/45099 , H01L2924/00
摘要： An isolator that includes first and second substantially identical circuitry galvanically isolated from each other and each having at least one communications channel thereon for communicating signals across an isolation boundary therebetween and each of said first and second circuitry having configurable functionality associated with the operation thereof. A coupling device is provided for coupling signal across the isolation boundary between the at least one communication channels of the first and second circuitry. First and second configuration memories are provided, each associated with a respective one of the first and second circuitry. First and second configuration control devices are provided, each associated with a respective one of the first and second circuitry and each configuring the functionality of the associated one of the first and second circuitry. The first and second configurable memories have stored therein complementary configuration information to control each of the functionalities of the first and second circuitry to operate in a complementary manner for communication of signals across the isolation boundary.
摘要翻译：一种隔离器，其包括彼此电隔离的第一和第二基本相同的电路，并且每个具有至少一个用于在其间的隔离边界传送信号的通信信道，所述第一和第二电路中的每一个具有与其操作相关联的可配置功能。提供耦合装置用于在第一和第二电路的至少一个通信信道之间的隔离边界上耦合信号。提供第一和第二配置存储器，每个与第一和第二电路中的相应一个相关联。提供第一和第二配置控制设备，每个配置控制设备与第一和第二电路中的相应一个相关联，并且每个配置控制设备配置第一和第二电路中相关联的一个的功能。第一和第二可配置存储器在其中存储有互补配置信息，以控制第一和第二电路的每个功能以互补的方式进行操作，用于跨越隔离边界的信号通信。

3. 发明授权

US08198951B2 Capacitive isolation circuitry 有权
标题翻译：电容隔离电路
公开(公告)号：US08198951B2
公开(公告)日：2012-06-12
申请号：US12414379
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： H04B3/28 , H01P5/02
CPC分类号： H04B3/02 , H01L23/48 , H01L23/49503 , H01L23/4952 , H01L23/49575 , H01L23/66 , H01L24/06 , H01L24/48 , H01L24/49 , H01L25/0655 , H01L2223/6611 , H01L2224/04042 , H01L2224/05554 , H01L2224/05599 , H01L2224/48095 , H01L2224/48137 , H01L2224/48247 , H01L2224/48464 , H01L2224/49171 , H01L2224/49175 , H01L2224/49176 , H01L2224/85399 , H01L2225/06506 , H01L2225/06527 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01014 , H01L2924/01015 , H01L2924/01023 , H01L2924/01027 , H01L2924/01032 , H01L2924/01033 , H01L2924/01082 , H01L2924/01083 , H01L2924/13055 , H01L2924/13091 , H01L2924/14 , H01L2924/19041 , H01L2924/19042 , H01L2924/19043 , H01L2924/30105 , H01L2924/30107 , H01L2924/3011 , H01L2924/3025 , H03K5/135 , H03K17/689 , H03M9/00 , H04L5/14 , H04L25/0266 , H04L25/0268 , H04L25/0272 , H01L2924/00 , H01L2224/45099 , H01L2924/00012
摘要： An integrated circuit having voltage isolation capabilities includes a plurality of communications channels for transceiving data from the integrated circuit. Each of the communications channel includes capacitive isolation circuitry located in conductive layers of the integrated circuit for providing a high voltage isolation link. The capacitive isolation circuitry distributes a first portion of a high voltage isolation signal across a first group of capacitors on a first link and a second link in the capacitive isolation circuitry and distributes a second portion of the high voltage isolation signal across a second group of capacitors in the first link and the second link in the capacitive isolation circuitry. A differential receiver on each of the plurality of communications channels receives the data on the first link and the second link. A differential transmitter on each of the plurality of communications channels transmits the data on the first link at a selected one of a first phase and a second phase and for transmitting the data on the second link at the selected one of the first phase and the second phase. The second phase is 180 degrees out of phase with the first phase. Each of the differential transmitters controls the selection of the first phase and the second phase on each of the first link and the second link such that only the first phase or the second phase is cross coupled onto a selected communications channel from adjacent communications channels.
摘要翻译：具有电压隔离能力的集成电路包括用于从集成电路收发数据的多个通信信道。每个通信信道包括位于集成电路的导电层中的电容隔离电路，用于提供高电压隔离链路。电容隔离电路在电容隔离电路中的第一链路和第二链路上跨第一组电容器分配高电压隔离信号的第一部分，并且将第二部分高电压隔离信号分配到第二组电容器在电容隔离电路中的第一链路和第二链路中。多个通信信道中的每一个上的差分接收机在第一链路和第二链路上接收数据。多个通信信道中的每一个上的差分发射机以第一相位和第二相位中的所选择的一个在第一链路上发送数据，并且用于在第一和第二相位中选定的一个的第二链路上发送数据相。第二阶段与第一阶段相差180度。每个差分发射机控制在第一链路和第二链路中的每一个上的第一相位和第二相位的选择，使得只有第一相位或第二相位相互耦合到来自相邻通信信道的所选择的通信信道上。

4. 发明授权

US07902627B2 Capacitive isolation circuitry with improved common mode detector 有权
标题翻译：具有改进的共模检测器的电容隔离电路
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。

5. 发明申请

US20130222162A1 DIGITAL TO ANALOG CONVERTER 有权
标题翻译：数字到模拟转换器
公开(公告)号：US20130222162A1
公开(公告)日：2013-08-29
申请号：US13408173
申请日：2012-02-29
申请人： Jinwen Xiao , Pavel Konecny , Axel Thomsen , Ka Y. Leung
发明人： Jinwen Xiao , Pavel Konecny , Axel Thomsen , Ka Y. Leung
IPC分类号： H03M1/10 , H03M1/66
CPC分类号： H03M1/1047 , H03M1/745 , H03M1/785
摘要： An input digital signal is converted to an analog signal using a main digital to analog converter (DAC) and a sub DAC. An offset value is subtracted from the input digital signal to generate an offset adjusted digital signal. The main DAC converts the offset adjusted digital signal to a first analog signal. A second digital signal is generated based on the offset value and a correction factor determined, at least in part, during calibration of the main DAC. The sub DAC converts the second digital to a second analog signal, which when combined with the first analog signal, provides an analog representation of the input digital signal.
摘要翻译：使用主数模转换器（DAC）和子DAC将输入数字信号转换为模拟信号。从输入数字信号中减去偏移值，以生成偏移调整数字信号。主DAC将偏移调整后的数字信号转换为第一个模拟信号。基于偏移值和至少部分地在主DAC的校准期间确定的校正因子来生成第二数字信号。子DAC将第二数字转换为第二模拟信号，当与第一模拟信号组合时，其提供输入数字信号的模拟表示。

6. 发明授权

US08681026B2 Digital to analog converter 有权
标题翻译：数模转换器
公开(公告)号：US08681026B2
公开(公告)日：2014-03-25
申请号：US13408173
申请日：2012-02-29
申请人： Jinwen Xiao , Pavel Konecny , Axel Thomsen , Ka Y. Leung
发明人： Jinwen Xiao , Pavel Konecny , Axel Thomsen , Ka Y. Leung
IPC分类号： H03M1/06
CPC分类号： H03M1/1047 , H03M1/745 , H03M1/785
摘要： An input digital signal is converted to an analog signal using a main digital to analog converter (DAC) and a sub DAC. An offset value is subtracted from the input digital signal to generate an offset adjusted digital signal. The main DAC converts the offset adjusted digital signal to a first analog signal. A second digital signal is generated based on the offset value and a correction factor determined, at least in part, during calibration of the main DAC. The sub DAC converts the second digital to a second analog signal, which when combined with the first analog signal, provides an analog representation of the input digital signal.
摘要翻译：使用主数模转换器（DAC）和子DAC将输入数字信号转换为模拟信号。从输入数字信号中减去偏移值，以生成偏移调整数字信号。主DAC将偏移调整后的数字信号转换为第一个模拟信号。基于偏移值和至少部分地在主DAC的校准期间确定的校正因子来生成第二数字信号。子DAC将第二数字转换为第二模拟信号，当与第一模拟信号组合时，该模拟信号提供输入数字信号的模拟表示。

7. 发明授权

US08203370B2 Schmitt trigger with gated transition level control 有权
标题翻译：施密特触发器具有门控过渡电平控制
公开(公告)号：US08203370B2
公开(公告)日：2012-06-19
申请号：US12494621
申请日：2009-06-30
申请人： Shouli Yan , Zhiwei Dong , Axel Thomsen
发明人： Shouli Yan , Zhiwei Dong , Axel Thomsen
IPC分类号： H03K3/00
CPC分类号： H03K3/3565 , H03K5/088
摘要： A Schmitt trigger comprises first and second circuitry. The first circuitry receives an input voltage and provides an output voltage at either a logical “low” or a logical “high” voltage level responsive to the input voltage and a first bias voltage. The second circuitry connects to the first circuitry to generate a second bias current for generating the output voltage. The second bias current is larger than the first bias current. The Schmitt trigger operates in a low power mode of operation using only the first bias voltage to maintain the logical “low” voltage level or the logical “high” voltage level at a substantially constant level. In a high power mode of operation the Schmitt trigger uses the second bias voltage during transition periods between the logical “low” voltage level and the logical “high” voltage level.
摘要翻译：施密特触发器包括第一和第二电路。第一电路接收输入电压并且响应于输入电压和第一偏置电压在逻辑“低”或逻辑“高”电压电平提供输出电压。第二电路连接到第一电路以产生用于产生输出电压的第二偏置电流。第二偏置电流大于第一偏置电流。施密特触发器仅在第一偏置电压下工作在低功耗工作模式，以将逻辑“低”电压电平或逻辑“高”电压电平维持在基本恒定的水平。在高功率工作模式下，施密特触发器在逻辑“低”电压电平和逻辑“高”电压电平之间的过渡期间使用第二偏置电压。

8. 发明申请

US20110050198A1 LOW-POWER VOLTAGE REGULATOR 审中-公开
标题翻译：低功率电压调节器
公开(公告)号：US20110050198A1
公开(公告)日：2011-03-03
申请号：US12551788
申请日：2009-09-01
申请人： Zhiwei Dong , William W. K. Tang , Axel Thomsen
发明人： Zhiwei Dong , William W. K. Tang , Axel Thomsen
IPC分类号： G05F3/16
CPC分类号： G05F3/242 , G05F1/607
摘要： A technique for reducing power dissipation and circuit area for a high voltage application includes creating a low-voltage, local power supply for use with local circuitry. In at least one embodiment of the invention, an apparatus includes an output node configured to provide a regulated output voltage. The apparatus includes a variable current source coupled to a first power supply node, wherein the variable current source is configured to provide an output current to the output node based on a control signal on a control node. The apparatus includes a feedback circuit configured to generate the control signal based on a mirrored current. The mirrored current is a mirrored version of a residual current flowing between the output node and a second power supply node. The regulated output voltage has a voltage level less than the voltage level on the first power supply node.
摘要翻译：用于降低功率耗散和高电压应用的电路面积的技术包括产生用于本地电路的低电压本地电源。在本发明的至少一个实施例中，一种装置包括被配置成提供调节输出电压的输出节点。该装置包括耦合到第一电源节点的可变电流源，其中可变电流源被配置为基于控制节点上的控制信号向输出节点提供输出电流。该装置包括被配置为基于镜像电流产生控制信号的反馈电路。镜像电流是在输出节点和第二电源节点之间流动的剩余电流的镜像版本。调节输出电压具有小于第一电源节点上的电压电平的电压电平。

9. 发明授权

US08952751B2 Amplifier circuits and methods of amplifying an input signal 有权
标题翻译：放大器电路和放大输入信号的方法
公开(公告)号：US08952751B2
公开(公告)日：2015-02-10
申请号：US13732135
申请日：2012-12-31
申请人： Axel Thomsen , Gang Yuan
发明人： Axel Thomsen , Gang Yuan
IPC分类号： H03F1/02 , H03F3/00 , H03F3/45
CPC分类号： H03F3/005 , H03F3/45197 , H03F3/45645 , H03F2203/45404 , H03F2203/45418 , H03F2203/45421 , H03F2203/45424 , H03F2203/45444 , H03F2203/45446 , H03F2203/45528 , H03F2203/45648
摘要： A method of operating an amplifier circuit having a pre-charge phase and a sample/conversion phase includes, during a pre-charge phase, charging first and second capacitors to first and second bias voltages. The first capacitor is coupled to a first input of an amplifier circuit, which has a second input and an output. The second capacitor is coupled to the second input. During a sample/conversion phase, the first input of the amplifier circuit is coupled to an input signal through the first capacitor to level-shift the input signal according to the first bias voltage and the output of the amplifier is coupled to the second input through the second capacitor to level shift a feedback signal according to the second bias voltage.
摘要翻译：操作具有预充电阶段和采样/转换阶段的放大器电路的方法包括在预充电阶段期间将第一和第二电容器充电到第一和第二偏置电压。第一电容器耦合到具有第二输入和输出的放大器电路的第一输入端。第二电容器耦合到第二输入端。在采样/转换阶段期间，放大器电路的第一输入通过第一电容耦合到输入信号，以根据第一偏置电压对输入信号进行电平移位，并且放大器的输出端通过所述第二电容器根据所述第二偏置电压对反馈信号进行电平移位。

10. 发明申请

US20140176250A1 Relaxation Oscillator 有权
标题翻译：放松振荡器
公开(公告)号：US20140176250A1
公开(公告)日：2014-06-26
申请号：US13721885
申请日：2012-12-20
申请人： Axel Thomsen , Pavel Konecny , Xiaodong Wang
发明人： Axel Thomsen , Pavel Konecny , Xiaodong Wang
IPC分类号： H03K3/011
CPC分类号： H03K3/0231
摘要： In an embodiment, a method includes: during a first portion of a cycle of a clock signal generated by an oscillator, pre-charging a first capacitor of a first switched capacitor stage until a first comparator determines that a first node voltage of the first switched capacitor stage is greater than a first reference voltage at a first reference voltage node; applying a second reference voltage to the first reference voltage node; and responsive to a first edge of the clock signal, charging the first capacitor until the first comparator determines that the first node voltage is greater than the second reference voltage at the first reference voltage node.
摘要翻译：在一个实施例中，一种方法包括：在由振荡器产生的时钟信号的周期的第一部分期间，对第一开关电容器级的第一电容器进行预充电，直到第一比较器确定第一开关的第一节点电压电容器级大于第一参考电压节点处的第一参考电压; 将第二参考电压施加到所述第一参考电压节点; 并且响应于所述时钟信号的第一边沿，对所述第一电容器充电直到所述第一比较器确定所述第一节点电压大于所述第一参考电压节点处的所述第二参考电压。

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