TEMPERATURE SENSOR LINEARIZATION TECHNIQUES
    1.
    发明公开

    公开(公告)号:US20240240995A1

    公开(公告)日:2024-07-18

    申请号:US18404610

    申请日:2024-01-04

    IPC分类号: G01K13/10 G01K1/02 G01K7/14

    CPC分类号: G01K13/10 G01K1/026 G01K7/14

    摘要: Methods, systems, and devices for temperature sensor linearization techniques are described. A temperature sensor associated with a semiconductor device may include a first circuit and a second circuit. The second circuit may be configured to determine that a first temperature, associated with the semiconductor device and indicated by one or more first bits generated by the first circuit, is within a first temperature range of a total temperature range measurable by the temperature sensor. The second circuit may be configured to generate and output, based on the first temperature being within the first temperature range, one or more second bits indicating a second temperature associated with the semiconductor device. The second circuit may generate the one or more second bits by applying, to the one or more first bits, a first-order operation corresponding to the first temperature range and associated with correcting an error of the first temperature.

    Method for implementing Vptat multiplier in high accuracy thermal sensor

    公开(公告)号:US11867572B2

    公开(公告)日:2024-01-09

    申请号:US17521123

    申请日:2021-11-08

    摘要: A temperature sensing circuit a switched capacitor circuit selectively samples ΔVbe and Vbe voltages and provides the sampled voltages to inputs of an integrator. A quantization circuit quantizes outputs of the integrator to produce a bitstream. When a most recent bit of the bitstream is a logic zero, operation includes sampling and integration of ΔVbe a first given number of times to produce a voltage proportional to absolute temperature. When the most recent bit of the bitstream is a logic one, operation includes cause sampling and integration of Vbe a second given number of times to produce a voltage complementary to absolute temperature. A low pass filter and decimator filters and decimates the bitstream produced by the quantization circuit to produce a signal indicative of a temperature of a chip into which the temperature sensing circuit is placed.

    METHOD FOR IMPLEMENTING VPTAT MULTIPLIER IN HIGH ACCURACY THERMAL SENSOR

    公开(公告)号:US20220196485A1

    公开(公告)日:2022-06-23

    申请号:US17521123

    申请日:2021-11-08

    IPC分类号: G01K7/14 G01K7/01

    摘要: A temperature sensing circuit a switched capacitor circuit selectively samples ΔVbe and Vbe voltages and provides the sampled voltages to inputs of an integrator. A quantization circuit quantizes outputs of the integrator to produce a bitstream. When a most recent bit of the bitstream is a logic zero, operation includes sampling and integration of ΔVbe a first given number of times to produce a voltage proportional to absolute temperature. When the most recent bit of the bitstream is a logic one, operation includes cause sampling and integration of Vbe a second given number of times to produce a voltage complementary to absolute temperature. A low pass filter and decimator filters and decimates the bitstream produced by the quantization circuit to produce a signal indicative of a temperature of a chip into which the temperature sensing circuit is placed.

    Uncalibrated thermocouple system
    4.
    发明授权

    公开(公告)号:US10993758B2

    公开(公告)日:2021-05-04

    申请号:US16547438

    申请日:2019-08-21

    摘要: Apparatus, including a multiplexer, having a first output and multiple first inputs receiving analog input signals and an analog feedback signal and cycling through and selecting the signals for transfer in sequential signal groupings to the first output. The apparatus also includes an amplification circuit, having a second output and a second input connected to the multiplexer first output, that amplifies signals corresponding to the analog input signals with a selected gain so as to generate respective amplified analog signals at the second output. Circuitry selects a characteristic of the respective amplified analog signals from an initial signal grouping, feeds the characteristic back for input to the multiplexer as the analog feedback signal, selects a subsequent characteristic of the respective amplified analog signals from a subsequent signal grouping, and adjusts the amplification circuit gain so that the analog feedback signal and the subsequent characteristic have the same amplitude.

    CHIP WIRING LAYER TEMPERATURE SENSING CIRCUIT, TEMPERATURE SENSING METHOD AND CHIP THEREOF

    公开(公告)号:US20210072095A1

    公开(公告)日:2021-03-11

    申请号:US16927438

    申请日:2020-07-13

    IPC分类号: G01K7/02 G01K7/14

    摘要: This invention discloses a chip wiring layer temperature sensing circuit, a temperature sensing method, a chip stereo temperature sensor, and a chip thereof. The chip wiring layer temperature sensing circuit includes a metal wiring layer temperature detection module, a pulse delay detection module, and a temperature transition module; wherein the metal wiring layer temperature detection module is disposed at a metal interconnection structure of a metal wiring layer of a chip; and the metal interconnection structure is electrically connected to the pulse delay detection module; wherein the pulse delay detection module includes a system high-speed clock, a delay data generated after a pulse passing through the metal wiring layer temperature detection module detected by the system high-speed clock, and the delay data was sent to the temperature transition module; wherein the temperature transition module calculates a temperature of the metal wiring layer according to the delay data.

    Linearization circuit and method for linearizing a measurement signal

    公开(公告)号:US10700698B2

    公开(公告)日:2020-06-30

    申请号:US16469326

    申请日:2017-12-07

    发明人: Harald Haas

    摘要: A disclosed linearization circuit includes a reference component, a charging and discharging controller, and a comparator circuit. The reference component has a non-linear dependence on current or voltage. The charging and discharging controller is configured to control alternating charging and discharging of the reference component. A voltage associated with the reference component forms a reference signal. The charging and discharging are controlled such that the reference signal has a periodic time dependence. The reference signal and a measurement signal are received by the comparator circuit. The comparator circuit is configured to generate and output a square-wave signal based on a reference time point during a charge-discharge cycle, and based on a result of a comparison of the reference signal with the measurement signal, such that the square-wave signal represents a linearized output signal. This disclosure further relates to a corresponding method.

    Uncalibrated thermocouple system
    7.
    发明授权

    公开(公告)号:US10390870B2

    公开(公告)日:2019-08-27

    申请号:US16158896

    申请日:2018-10-12

    摘要: Apparatus, including a multiplexer, having a first output and multiple first inputs receiving analog input signals and an analog feedback signal and cycling through and selecting the signals for transfer in sequential signal groupings to the first output. The apparatus also includes an amplification circuit, having a second output and a second input connected to the multiplexer first output, that amplifies signals corresponding to the analog input signals with a selected gain so as to generate respective amplified analog signals at the second output. Circuitry selects a characteristic of the respective amplified analog signals from an initial signal grouping, feeds the characteristic back for input to the multiplexer as the analog feedback signal, selects a subsequent characteristic of the respective amplified analog signals from a subsequent signal grouping, and adjusts the amplification circuit gain so that the analog feedback signal and the subsequent characteristic have the same amplitude.

    Uncalibrated thermocouple system
    8.
    发明授权

    公开(公告)号:US10098684B2

    公开(公告)日:2018-10-16

    申请号:US15091860

    申请日:2016-04-06

    摘要: Apparatus, including a multiplexer, having a first output and multiple first inputs receiving analog input signals and an analog feedback signal and cycling through and selecting the signals for transfer in sequential signal groupings to the first output. The apparatus also includes an amplification circuit, having a second output and a second input connected to the multiplexer first output, that amplifies signals corresponding to the analog input signals with a selected gain so as to generate respective amplified analog signals at the second output. Circuitry selects a characteristic of the respective amplified analog signals from an initial signal grouping, feeds the characteristic back for input to the multiplexer as the analog feedback signal, selects a subsequent characteristic of the respective amplified analog signals from a subsequent signal grouping, and adjusts the amplification circuit gain so that the analog feedback signal and the subsequent characteristic have the same amplitude.

    Armoured flexible averaging temperature sensor
    10.
    发明授权
    Armoured flexible averaging temperature sensor 有权
    装甲灵活平均温度传感器

    公开(公告)号:US07465087B2

    公开(公告)日:2008-12-16

    申请号:US11293630

    申请日:2005-12-02

    申请人: S. Asim Gul

    发明人: S. Asim Gul

    IPC分类号: G01K1/16 G01K7/14 G01K7/16

    CPC分类号: G01K3/06

    摘要: A temperature sensor approximates fluid temperature averaged across a location range by including an outer armour layer. Several resistance temperature detectors are spaced in an electrical circuit which is then protected in the outer armour layer. The outer armour layer is woven without any seam to enhance its longitudinal thermal conductivity. In the preferred weave, twenty-four stands of sixteen metal threads each are helically woven. The electrical circuit is sealed interior to the armour layer so any condensation or moisture within the armour layer does not affect the circuit. The armour layer is sealed on its ends to the sheathing of the underlying circuit, so the armour layer provides stress relief across the connections of the resistance temperature detectors to the circuit. The resulting sensor is robust and durable, as well as very flexible.

    摘要翻译: 温度传感器通过包括外部装甲层来接近位置范围内平均的流体温度。 几个电阻温度检测器在电路中间隔开,然后在外部护甲层中被保护。 外部装甲层无缝隙地编织以增强其纵向热导率。 在优选的编织中,十四个金属线的二十四个立场是螺旋编织的。 电路在铠装层内部被密封,因此铠装层内的任何冷凝或水分都不会影响电路。 铠装层的末端被密封到下面的电路的护套上,因此铠装层在电阻温度检测器的连接处提供了对电路的应力消除。 所得到的传感器坚固耐用,而且非常灵活。