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    Diagnostic circuits and methods for sensor test circuits
    31.
    发明授权
    Diagnostic circuits and methods for sensor test circuits 有权

    公开(公告)号：US11194004B2

    公开(公告)日：2021-12-07

    申请号：US16788505

    申请日：2020-02-12

    Applicant: Allegro MicroSystems, LLC

    Inventor： P. Karl Scheller ,  Devon Fernandez

    IPC: G01R35/00 ,  G01D5/16 ,  G01D5/14

    Abstract: A sensor includes a detector configured to sense a parameter, at least one test circuit configured to detect a respective fault condition of the sensor and generate a fault signal in response to detecting the fault condition, a checker configured to test the at least one test circuit to determine the operational status of the at least one test circuit, and an output signal generator, coupled to receive the sensed parameter, the fault signal, and the operational status of the at least one test circuit. The output signal generator is configured to generate an output signal of the sensor to communicate the sensed parameter and the operational status of the at least one test circuit.

    Methods And Apparatus For Monitoring A Level Of A Regulated Source
    32.
    发明申请
    Methods And Apparatus For Monitoring A Level Of A Regulated Source 有权

    公开(公告)号：US20210048456A1

    公开(公告)日：2021-02-18

    申请号：US17061602

    申请日：2020-10-02

    Applicant: Allegro MicroSystems, LLC

    Inventor： Sam Tran ,  Jay M. Towne ,  P. Karl Scheller

    IPC: G01R19/165 ,  G01R31/40 ,  G01R31/28 ,  G01R33/02

    Abstract: A monitor circuit for monitoring a level of a first and second regulated source may monitor a voltage level of regulated voltages or a current level of regulated currents. In an embodiment, the monitor circuit includes circuitry responsive to a first regulated current and to a second regulated current. A first circuit responsive to the first regulated current and to the second regulated current generates a first error signal indicative of at least one of an overcurrent condition of the first regulated current and an undercurrent condition of the second regulated current. A second circuit responsive to the first regulated current and to the second regulated current generates a second error signal indicative of at least one of an undercurrent condition of the first regulated current and an overcurrent condition of the second regulated current. A method for monitoring the levels of first and second regulated sources is also provided.

    Methods And Apparatus For Monitoring A Level Of A Regulated Source
    35.
    发明申请
    Methods And Apparatus For Monitoring A Level Of A Regulated Source 审中-公开

    公开(公告)号：US20190128930A1

    公开(公告)日：2019-05-02

    申请号：US16232560

    申请日：2018-12-26

    Applicant: Allegro MicroSystems, LLC

    Inventor： Sam Tran ,  Jay M. Towne ,  P. Karl Scheller

    IPC: G01R19/165 ,  G01R33/02 ,  G01R31/40 ,  G01R31/28

    Abstract: A monitor circuit for monitoring a level of a first and second regulated source may monitor a voltage level of regulated voltages or a current level of regulated currents. In an embodiment, the monitor circuit includes circuitry responsive to a first regulated voltage and to a second regulated voltage. A first circuit responsive to the first regulated voltage and to the second regulated voltage generates a first error signal indicative of at least one of an overvoltage condition of the first regulated voltage and an undervoltage condition of the second regulated voltage. A second circuit responsive to the first regulated voltage and to the second regulated voltage generates a second error signal indicative of at least one of an undervoltage condition of the first regulated voltage and an overvoltage condition of the second regulated voltage. A method for monitoring the levels of first and second regulated sources is also provided.

    CIRCUITS AND METHODS FOR MODULATING CURRENT IN CIRCUITS COMPRISING SENSING ELEMENTS
    37.
    发明申请
    CIRCUITS AND METHODS FOR MODULATING CURRENT IN CIRCUITS COMPRISING SENSING ELEMENTS 有权
    用于调节包含传感元件的电路中的电流的电路和方法

    公开(公告)号：US20160313407A1

    公开(公告)日：2016-10-27

    申请号：US14696674

    申请日：2015-04-27

    Applicant: ALLEGRO MICROSYSTEMS, LLC

    Inventor： Jay M. Towne ,  P. Karl Scheller ,  Eric G. Shoemaker

    IPC: G01R33/00 ,  G01R33/09 ,  G01R33/07 ,  H03F1/02 ,  H03G1/00

    CPC classification number: G01R33/0041 ,  G01D5/145 ,  G01R33/0029 ,  G01R33/07 ,  G01R33/09 ,  H03F1/0216 ,  H03G1/0035

    Abstract: A circuit includes a current source having at least first terminal and a second, control terminal. The current source is configured to receive a current control signal at the control terminal and in response thereto generates a first current signal at the first terminal. The current control signal controls a current level of the first current signal. The circuit also includes at least one sensing element responsive to one or more sense parameters and having an input adapted to couple to the first terminal of said current source. The sensing element is configured to receive one or more current signals comprising at least the first current signal and in response thereto generates a sensed output signal at an output thereof. A corresponding method for operating the circuit is also provided.

    Abstract translation: 电路包括至少具有第一端子和第二控制端子的电流源。 电流源被配置为在控制终端处接收电流控制信号，并响应于此，在第一终端产生第一电流信号。 电流控制信号控制第一电流信号的电流电平。 电路还包括响应于一个或多个感测参数并且具有适于耦合到所述电流源的第一端子的输入的至少一个感测元件。 感测元件被配置为接收包括至少第一电流信号的一个或多个电流信号，并且作为响应，感测元件在其输出处产生感测的输出信号。 还提供了用于操作电路的相应方法。

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