公开(公告)号：US20150002142A1

公开(公告)日：2015-01-01

申请号：US13931148

申请日：2013-06-28

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Jan Kubik

IPC: G01D5/16

CPC classification number: G01D5/16 ,  G01R33/0005 ,  G01R33/0094 ,  G01R33/02 ,  G01R33/09

Abstract: A magnetic direction sensor, comprising a first array of magneto-resistive elements, said array having a first array primary direction and wherein some but not all of the magneto-resistive elements are wholly or partially provided at a first angle to the primary direction, and the remaining elements are also inclined with respect to the primary direction.

Abstract translation: 一种磁方向传感器，包括第一磁阻元件阵列，所述阵列具有第一阵列主方向，并且其中一些但不是全部的磁阻元件全部或部分地设置成与主方向成第一角度，并且 剩余的元件也相对于主要方向倾斜。

公开(公告)号：US20140354459A1

公开(公告)日：2014-12-04

申请号：US13905251

申请日：2013-05-30

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Trevor Clifford Caldwell ,  Richard E. Schreier ,  David Alldred ,  Wenhua W. Yang

IPC: H03M3/00

CPC classification number: H03M1/0673 ,  H03M1/361 ,  H03M1/74 ,  H03M3/30 ,  H03M3/338 ,  H03M3/464

Abstract: In one aspect, an electrical signal converter is disclosed. The exemplary electrical signal converter may include a plurality of ordered converter elements. Element selection logic may be provided to pseudorandomly select a pointer to a switch matrix, wherein the switch matrix maps converter elements according to a stepwise “delta-two-maximum pattern.” Advantageously, pseudorandom stepwise delta-two-maximum patterns may be applied both to a first order converter, and to a feedback converter for error correction.

Abstract translation: 一方面，公开了一种电信号转换器。 示例性电信号转换器可以包括多个有序的转换器元件。 可以提供元素选择逻辑以伪随机选择指向开关矩阵的指针，其中开关矩阵根据逐步的“二进制二最大模式”来映射转换器元件。有利地，可以应用伪随机逐步的Δ-二最大模式 到一阶转换器和用于纠错的反馈转换器。

公开(公告)号：US08884802B2

公开(公告)日：2014-11-11

申请号：US13920083

申请日：2013-06-18

Applicant: Analog Devices Technology

Inventor： Zhao Li ,  Shipra Bhal ,  Kevin Glenn Gard ,  David Alldred ,  Christopher Mayer ,  Trevor Clifford Caldwell ,  David J. McLaurin ,  Victor Kozlov

IPC: H03M1/34 ,  H03M1/10 ,  H03M1/00 ,  H03M1/12

CPC classification number: H03M3/384 ,  H03M1/00 ,  H03M1/1009 ,  H03M1/12 ,  H03M3/458

Abstract: A calibration system for an analog-to-digital converter (ADC) an internal ADC that receives an analog input and converts the analog input to digital multi-bit data. The calibration system also includes a reference shuffling circuit that shuffles reference values of comparators of the internal ADC. Further, the calibration system includes a calibration circuit that calibrates the comparators of the internal ADC. The calibration system includes a digital block that measures an amplitude based on the digital multi-bit data. Additionally, the calibration system includes calibration logic that controls the calibration circuit based on an output of the digital block.

Abstract translation: 用于模数转换器（ADC）的校准系统，内部ADC接收模拟输入并将模拟输入转换为数字多位数据。 该校准系统还包括一个参考混洗电路，它洗牌内部ADC的比较器参考值。 此外，校准系统包括校准电路，校准内部ADC的比较器。 校准系统包括基于数字多位数据测量幅度的数字块。 此外，校准系统包括基于数字块的输出来控制校准电路的校准逻辑。

公开(公告)号：US20140269985A1

公开(公告)日：2014-09-18

申请号：US13828989

申请日：2013-03-14

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Haim Primo ,  Manish J. Manglani ,  Yosef Stein

IPC: H04B1/04

CPC classification number: H04B1/0475 ,  H03D7/165 ,  H03D2200/0043 ,  H04L25/061 ,  H04L27/364 ,  H04L27/366

Abstract: Apparatus and methods for estimating a direct current offset in an upconverter are disclosed. Samples of a first signal are received. Values of a compensation signal are retrieved. For example, the compensation signal can be a component in a modified baseband signal, wherein the modified baseband signal is upconverted, downconverted, and filtered to generate the first signal. An estimate of a first DC offset induced by an upconverter is generated based at least partly on at least two selected samples of the first signal and corresponding values of the compensation signal.

Abstract translation: 公开了用于估计上变频器中的直流偏移的装置和方法。 接收第一信号的样本。 检索补偿信号的值。 例如，补偿信号可以是修改的基带信号中的分量，其中修改的基带信号被上变频，下变频和滤波以产生第一信号。 至少部分地基于第一信号的至少两个选定样本和补偿信号的对应值来生成由上变频器引起的第一DC偏移的估计。

公开(公告)号：US20140254431A1

公开(公告)日：2014-09-11

申请号：US13790071

申请日：2013-03-08

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Dongqin Yan ,  Yang Pan ,  Olafur M. Josefsson

IPC: H04L12/24

CPC classification number: H04Q11/04 ,  H04Q2213/13292 ,  H04Q2213/13322 ,  H04Q2213/1336

Abstract: Advanced TDM daisy-chain configurations utilize data transmission over a frame sync signal path with feedback to allow for communication between the master device and slave devices and/or between individual slave devices while maintaining a simple TDM communication interface. In certain daisy-chain configurations, the feedback path returns to the frame sync signal path between the master device and the first slave device, which allows for transmission of data from the last slave device to the master device and/or to the first slave device. In other daisy-chain configurations, the feedback path returns to the frame sync signal path between the first slave device and the second slave device, which allows for transmission of data from the last slave device to the first slave device (which may transfer data to the master device, e.g., over separate command and/or data lines) and/or to the first slave device.

Abstract translation: 高级TDM菊花链配置利用具有反馈的帧同步信号路径上的数据传输，以允许主设备和从设备之间和/或各个从设备之间的通信，同时保持简单的TDM通信接口。 在某些菊花链配置中，反馈路径返回到主设备和第一从设备之间的帧同步信号路径，其允许从最后从设备向主设备和/或第一从设备传输数据 。 在其他菊花链配置中，反馈路径返回到第一从设备和第二从设备之间的帧同步信号路径，其允许从最后从设备向第一从设备传输数据（其可以将数据传送到 主设备，例如通过单独的命令和/或数据线）和/或到第一从设备。

公开(公告)号：US20140254206A1

公开(公告)日：2014-09-11

申请号：US13947820

申请日：2013-07-22

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Yingyang Ou ,  Qingyi Huang ,  Renjian Xie ,  Ling Ren

IPC: H02M3/335

CPC classification number: H02M3/33592 ,  Y02B70/1475

Abstract: In certain example embodiments, a system is provided that includes a circuit. The system also includes a reverse current control module that provides an isolated power supply in order to protect one or more devices in a power chain during one or more testing activities having one or more requirements.

Abstract translation: 在某些示例性实施例中，提供了包括电路的系统。 该系统还包括反向电流控制模块，其提供隔离的电源，以便在具有一个或多个要求的一个或多个测试活动期间保护功率链中的一个或多个设备。

公开(公告)号：US20140253223A1

公开(公告)日：2014-09-11

申请号：US13793543

申请日：2013-03-11

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Patrick J. Meehan ,  Mark T. Kelly ,  Christopher Peter Hurrell ,  Thomas Anthony Conway ,  Donal O'Sullivan ,  Michael Hennessy ,  William Hunt

IPC: H03K17/00

CPC classification number: H03H21/0007 ,  G06F1/26 ,  H03K17/00 ,  H03K17/161 ,  H03M1/0626 ,  H03M1/12

Abstract: A signal processing apparatus that includes a circuit in which a signal processing function is performed during a first time period, the signal processing apparatus including or being associated with a switch or a filter in a power supply to the signal processing apparatus so as to disconnect the signal processing apparatus from the power supply or to filter the power supply during a second time period that is coincident with at least part of the first time period.

Abstract translation: 一种信号处理装置，包括在第一时间段内执行信号处理功能的电路，所述信号处理装置包括或者与所述信号处理装置的电源中的开关或滤波器相关联，以便断开所述信号处理装置 信号处理装置，或者在与第一时间段的至少一部分一致的第二时间段期间对电源进行滤波。

公开(公告)号：US20140247031A1

公开(公告)日：2014-09-04

申请号：US13782223

申请日：2013-03-01

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： SONG QIN

IPC: H02M1/32 ,  H02M3/156

CPC classification number: H02M1/32 ,  H02M3/1588 ,  Y02B70/1466

Abstract: A negative current protection system for a low side switching converter FET, for use with a switching converter arranged to operate high and low side FETs connected to an output inductor to produce an output voltage. The negative current protection system comprises a current sensing circuit which produces an output Vcs that varies with the current in the high side FET, a negative current threshold generator which produces a threshold signal −Ith which represents the maximum negative current to which the low side FET is to be subjected, and a comparison circuit arranged to compare the valley portion of Vcs and −Ith and to set a flag if Vcs

Abstract translation: 一种用于低侧开关转换器FET的负电流保护系统，用于与连接到输出电感器的高低侧FET连接以产生输出电压的开关转换器。 负电流保护系统包括电流检测电路，其产生随着高侧FET中的电流而变化的输出Vcs;产生阈值信号的负电流阈值发生器，其表示低边FET的最大负电流 并且比较电路被布置为比较Vcs和-Ith的谷部分，并且在开关周期中的预定时间（通常在转换器的消隐时间之后）设置Vcs <-Ith的标志。 当标志置位时，系统优选地通过调节开关FET的操作来减小负电流来进行响应。

公开(公告)号：US08823419B1

公开(公告)日：2014-09-02

申请号：US13792835

申请日：2013-03-11

Applicant: Analog Devices Technology

Inventor： Finbarr O'Leary ,  Michael Edward Bradley ,  Naiqian Ren ,  George R. Spalding ,  Nigel David Brooke

IPC: H03K5/153

CPC classification number: H03K5/22

Abstract: A ping pong comparator voltage monitoring circuit which includes first and second comparators having inputs connected to a voltage Vin to be monitored, and second inputs connected to first and second nodes, respectively. A multiplexer alternately couples the first and second comparator outputs to an output in response to a periodic control signal. A ground-referenced voltage Vref1 is provided at a third node and a voltage Vref2 referenced to Vref1 is at a fourth node. A hysteresis hyst1 is switchably connected between the third and first nodes, and a hysteresis hyst2 is switchably connected between the fourth and second nodes. Hyst1 and hyst2 are switched in when the mux output toggles due to a rising Vin, and are switched out when the mux output toggles due to a falling Vin.

Abstract translation: 乒乓比较器电压监视电路，其包括具有连接到要监视的电压Vin的输入的第一和第二比较器，以及分别连接到第一和第二节点的第二输入。 复用器响应于周期性控制信号将第一和第二比较器输出交替耦合到输出。 在第三节点处提供地参考电压Vref1，并且参考Vref1的电压Vref2在第四节点处。 迟滞hyst1可切换地连接在第三节点和第一节点之间，并且滞后hyst2可切换地连接在第四节点和第二节点之间。 当Mux输出由于Vin上升而切换时，Hyst1和hyst2被切换，并且当多路复用器输出由于Vin下降而切换时，Hyst1和hyst2被切换。

公开(公告)号：US20140239925A1

公开(公告)日：2014-08-28

申请号：US13775820

申请日：2013-02-25

Applicant: Analog Devices Technology

Inventor： Hirohisa Tanabe ,  Kenji Tomiyoshi

IPC: H02M3/158

CPC classification number: H02M3/1582 ,  H02M3/156 ,  H02M2001/0009

Abstract: An inductor current emulation circuit for use with a switching converter in which regulating the output voltage includes comparing an output which varies with the difference between the output voltage and a reference voltage with a ‘ramp’ signal which emulates the current in the output inductor. A current sensing circuit produces an output which varies with the current in the switching element that is turned on during the ‘off’ time, an emulated current generator circuit produces the ‘ramp’ signal during both ‘off’ and ‘on’ times, a comparator circuit compares the ‘ramp’ signal with at least one threshold voltage which varies with the sensed current and toggles an output when the ‘ramp’ exceeds the thresholds, and a feedback circuit produces an output which adjusts the ‘ramp’ signal each time the comparator circuit output toggles until the ‘ramp’ signal no longer exceeds the threshold voltages.

Abstract translation: 一种与开关转换器一起使用的电感器电流仿真电路，其中调节输出电压包括将输出与输出电压和参考电压之间的差值进行比较，其中的“斜坡”信号模拟输出电感器中的电流。 电流感测电路产生随着在“关断”时间期间导通的开关元件中的电流而变化的输出，仿真电流发生器电路在“断开”和“打开”时间期间产生“斜坡”信号，a 比较器电路将“斜坡”信号与至少一个随感测电流变化的阈值电压进行比较，并在“斜坡”超过阈值时切换输出，反馈电路产生一个输出，每次输出调整“斜坡”信号 比较器电路输出切换直到“斜坡”信号不再超过阈值电压。