Temperature dependent voltage generator with binary adjustable null
voltage
    2.
    发明授权
    Temperature dependent voltage generator with binary adjustable null voltage 失效
    具有二进制可调零电压的温度相关电压发生器

    公开(公告)号:US5619122A

    公开(公告)日:1997-04-08

    申请号:US422341

    申请日:1995-04-14

    摘要: In accordance with the teachings of the present invention, a temperature dependent voltage generator circuit is provided for generating an output voltage that changes proportionally with changes in the operating temperature of the temperature dependent voltage generator circuit. The temperature dependent voltage generator circuit includes binary weighted current sources and electronic switches that are selectively closed in order to produce a binary weighted current. The binary weighted current is adjustable such that the output voltage of the temperature dependent voltage generator circuit may be "nulled" or forced to zero at any given operating temperature.

    摘要翻译: 根据本发明的教导,提供了一种依赖于温度的电压发生器电路,用于产生与温度相关的电压发生器电路的工作温度的变化成比例地变化的输出电压。 温度相关电压发生器电路包括二进制加权电流源和选择性闭合的电子开关,以产生二进制加权电流。 二进制加权电流是可调节的,使得温度相关电压发生器电路的输出电压在任何给定的工作温度下可能被“零”或强制为零。

    Programmable transducer amplifier circuit
    3.
    发明授权
    Programmable transducer amplifier circuit 失效
    可编程传感器放大器电路

    公开(公告)号:US5534816A

    公开(公告)日:1996-07-09

    申请号:US421956

    申请日:1995-04-14

    摘要: In accordance with the teachings of the present invention, a programmable integrated transducer amplifier circuit is provided which receives differential outputs from a transducer, such as a pressure or accelerometer transducer. The programmable integrated transducer amplifier circuit includes binary adjustable circuits that are programmed in response to binary coded signals. The binary adjustable circuits generate binary weighted currents that are employed to adjust the operating characteristics of the amplifier circuit. The binary coded signals are received from a programmable memory array which includes a plurality of memory cells that store binary information. Each of the memory cells are programmed when coupled to a programming signal. Additionally, the memory array has pretest capability for testing outputs of the memory cells prior to permanently programming the respective memory cells. Additionally, the integrated transducer amplifier circuit automatically compensates for variations in the operating temperature of the amplifier circuit. The method of temperature compensation is accomplished by operating the programmable integrated transducer amplifier circuit at a first temperature such that a temperature compensation voltage is "nulled" or is forced to equal zero. Thereafter, the integrated transducer amplifier circuit is operated at other temperatures such that the temperature compensation voltage is generated in a manner representing the difference between the first operating temperatures and the current operating temperature.

    摘要翻译: 根据本发明的教导,提供了可编程集成换能器放大器电路,其接收来自诸如压力传感器或加速度计换能器的换能器的差分输出。 可编程集成传感器放大器电路包括响应于二进制编码信号编程的二进制可调电路。 二进制可调电路产生二进制加权电流,用于调整放大器电路的工作特性。 从包括存储二进制信息的多个存储器单元的可编程存储器阵列接收二进制编码信号。 当耦合到编程信号时,每个存储器单元被编程。 此外,存储器阵列具有用于在对各个存储单元进行永久编程之前测试存储器单元的输出的预测试能力。 此外,集成的换能器放大器电路自动补偿放大器电路的工作温度变化。 温度补偿的方法是通过在第一温度下操作可编程的积分换能器放大器电路来实现的,使得温度补偿电压被“零”或被迫等于零。 此后,集成的换能器放大器电路在其它温度下工作,使得以表示第一工作温度和当前工作温度之间的差异的方式产生温度补偿电压。

    Integrated pressure sensor and method of manufacture

    公开(公告)号:US07117747B2

    公开(公告)日:2006-10-10

    申请号:US11028343

    申请日:2005-01-03

    IPC分类号: G01L9/00

    摘要: A technique for manufacturing an integrated pressure sensor includes a number of steps. Initially, a substrate with conductive electrical traces located on first and second sides of the substrate is provided. A plurality of compensation circuits are positioned in an array on the first side of the substrate in electrical contact with one or more of the conductive electrical traces on the first side of the substrate. A plurality of pressure sensors are positioned on the second side of the substrate in electrical contact with one or more of the conductive electrical traces on the second side of the substrate. Each one of the sensors is associated with one of the compensation circuits to form a plurality of pressure sensor-compensation circuit pairs. The substrate includes conductive vias to electrically connect each of the sensor-compensation circuit pairs. Each of the compensation circuits provides temperature compensation for an associated one of the sensors. The sensor-compensation circuit pairs are calibrated and singulated for final packaging.

    Integrated zener-zap nonvolatile memory cell with programming and
pretest capability
    5.
    发明授权
    Integrated zener-zap nonvolatile memory cell with programming and pretest capability 失效
    集成的齐纳瓦非易失性存储器单元,具有编程和预测试功能

    公开(公告)号:US5572472A

    公开(公告)日:1996-11-05

    申请号:US421774

    申请日:1995-04-14

    IPC分类号: G11C17/18 G11C29/04 G11C29/00

    CPC分类号: G11C17/18 G11C29/04

    摘要: A "zener-zap" memory cell with pretest capability for testing effects that would be realized from permanently programming the memory cell is provided. The memory cell is addressable and provides a binary signal at an output. The memory cell uses a zener diode as a memory element which is permanently programmed when selectively coupled to a programming voltage which exceeds the reverse breakdown voltage of the zener diode. The memory cell has a test circuit for generating the programmed binary signal at the output of the memory cell prior to permanently programming the zener diode and when coupled to a pretest voltage.

    摘要翻译: 提供了具有预测试功能的“齐纳比”存储器单元,用于测试由永久编程存储器单元实现的效果。 存储单元可寻址,并在输出端提供二进制信号。 存储器单元使用齐纳二极管作为存储元件,当被选择性地耦合到超过齐纳二极管的反向击穿电压的编程电压时,其被永久编程。 存储单元具有测试电路,用于在永久地编程齐纳二极管之前和当耦合到预测试电压时,在存储器单元的输出处产生编程的二进制信号。

    Stackable voltage comparator circuit for a multiple voltage window
detector
    6.
    发明授权
    Stackable voltage comparator circuit for a multiple voltage window detector 失效
    用于多电压窗口检测器的可堆叠电压比较器电路

    公开(公告)号:US5532627A

    公开(公告)日:1996-07-02

    申请号:US422433

    申请日:1995-04-14

    IPC分类号: H03K5/24 H03K5/153

    CPC分类号: H03K5/2418

    摘要: A stackable voltage comparator circuit that may be used in an analog voltage address decoder circuit for performing voltage window comparisons. The voltage comparator circuit includes a plurality of voltage comparator circuit cells, each of which includes a differential input stage made up of a pair of transistors which receives a current source. A first comparator circuit cell includes a differential input pair of transistors with one of the transistors having a first collector and a second collector, with the second collector being coupled to an output line. The first comparator circuit cell compares an input window with a first threshold voltage and produces an output at the output line. A second comparator circuit cell compares the input voltage with a second threshold voltage and includes a second differential input pair of transistors. The second comparator circuit cell has an input coupled to the output line of the first comparator circuit for receiving current when the input voltage is less than the first threshold voltage and provides an output indicative of whether the input voltage is within a voltage window bounded by the first and second threshold voltages.

    摘要翻译: 可以在用于执行电压窗口比较的模拟电压地址解码器电路中使用的可堆叠电压比较器电路。 电压比较器电路包括多个电压比较器电路单元,每个电压单元包括由接收电流源的一对晶体管构成的差分输入级。 第一比较器电路单元包括差分输入对晶体管,其中一个晶体管具有第一集电极和第二集电极,其中第二集电极耦合到输出线。 第一比较器电路单元将输入窗口与第一阈值电压进行比较,并在输出线处产生输出。 第二比较器电路单元将输入电压与第二阈值电压进行比较,并且包括第二差分输入对晶体管。 第二比较器电路单元具有耦合到第一比较器电路的输出线的输入端,用于当输入电压小于第一阈值电压时接收电流,并提供指示输入电压是否在由 第一和第二阈值电压。

    Leak-testing technique for differential pressure sensor array
    7.
    发明授权
    Leak-testing technique for differential pressure sensor array 有权
    差压传感器阵列泄漏检测技术

    公开(公告)号:US07174773B2

    公开(公告)日:2007-02-13

    申请号:US11109315

    申请日:2005-04-19

    IPC分类号: G01M3/26 G01L19/14

    CPC分类号: G01M3/186

    摘要: A leak-testing technique and apparatus for differential pressure sensor arrays is provided. A reference pressure sensor array is provided, wherein a seal is disposed between the reference pressure sensor array and a target differential pressure sensor array. A probe socket is utilized to communicate with each individual sensor in the reference pressure sensor array. The target pressure sensor array and the reference pressure sensor array are sealed via a pressure plate and plunger assembly. The target pressure sensor array, seal, and reference pressure sensor array are exposed to a first pressure. The target differential pressure sensor array, seal, and reference pressure sensor array are then exposed to a second pressure. The probe socket verifies that all reference pressure sensors continue to output the first pressure. If the probe socket identifies a reference pressure sensor that reads the second pressure, then the corresponding target pressure sensor is identified as being defective because of leakage.

    摘要翻译: 提供了用于差压传感器阵列的泄漏测试技术和设备。 提供了一种参考压力传感器阵列,其中密封件设置在参考压力传感器阵列和目标差压传感器阵列之间。 探头插座用于与参考压力传感器阵列中的每个单独的传感器通信。 目标压力传感器阵列和参考压力传感器阵列通过压力板和柱塞组件密封。 目标压力传感器阵列,密封件和参考压力传感器阵列暴露于第一压力。 然后将目标差压传感器阵列,密封件和参考压力传感器阵列暴露于第二压力。 探头插座验证所有参考压力传感器是否继续输出第一压力。 如果探头插座识别出读取第二压力的参考压力传感器,则相应的目标压力传感器由于泄漏而被识别为有缺陷的。

    Temperature compensated voltage generator
    10.
    发明授权
    Temperature compensated voltage generator 失效
    温度补偿电压发生器

    公开(公告)号:US4883992A

    公开(公告)日:1989-11-28

    申请号:US240279

    申请日:1988-09-06

    CPC分类号: G01D3/0365 G01L9/065

    摘要: A temperature compensation circuit for a device with a voltage output affected by temperature in a predetermined manner and a null output for which the voltage is zero regardless of temperature comprises a voltage to current converter responsive to the generated voltage to produce a proportional current, a current generator comprising elements responsive to the temperature of the device to generate a pair of compensation currents varying therewith in a predetermined manner so that the ratio of the compensation currents embodies a desired temperature compensation, and a transconductance multiplier effective to multiply the proportional current by the ratio of the compensation currents to generate a compensated output current. It may further comprise a current to voltage converter responsive to the compensated output current to produce a compensated output voltage.