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    DATA CONVERTER FALSE SATURATION DETECTOR
    1.
    发明申请
    DATA CONVERTER FALSE SATURATION DETECTOR 有权

    公开(公告)号：US20210181268A1

    公开(公告)日：2021-06-17

    申请号：US16715492

    申请日：2019-12-16

    Applicant: Allegro MicroSystems, LLC

    Inventor： Jay M. Towne ,  Peter Tengstrand ,  Devon Fernandez

    IPC: G01R33/00 ,  H03M3/00 ,  G01R33/02 ,  G01R35/00

    Abstract: According to aspects of the disclosure, an apparatus is disclosed comprising: a controller; an analog-to-digital converter (ADC) coupled to the controller, the ADC including an input terminal for receiving a sensor signal from a transducer; and a diagnostic circuit coupled to the input terminal of the ADC and to the controller, the diagnostic circuit being configured to: generate a diagnostic signal that indicates whether a voltage at the input terminal of the ADC meets a first threshold, and provide the diagnostic signal to the controller, wherein the controller is configured to: receive a data sample from the ADC, detect whether the data sample meets a second threshold, and transition the apparatus into a safe state when: (i) the diagnostic signal indicates that the voltage at the input terminal does not meet the first threshold, and (ii) the data sample meets the second threshold

    Methods and apparatus for monitoring a level of a regulated source
    2.
    发明授权
    Methods and apparatus for monitoring a level of a regulated source 有权

    公开(公告)号：US10209279B2

    公开(公告)日：2019-02-19

    申请号：US14748692

    申请日：2015-06-24

    Applicant: ALLEGRO MICROSYSTEMS, LLC

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

    IPC: G01R19/165 ,  G01R31/40 ,  G01R31/28 ,  G01R33/02 ,  G01D5/14

    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
    4.
    发明授权
    Circuits and methods for modulating current in circuits comprising sensing elements 有权
    用于调制包括感测元件的电路中的电流的电路和方法

    公开(公告)号：US09523742B2

    公开(公告)日：2016-12-20

    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: G01R33/06 ,  G01R33/07 ,  G01R33/09 ,  G01R33/00 ,  H03F1/02 ,  H03G1/00 ,  G01D5/14

    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。

    Methods And Apparatus For Monitoring A Level Of A Regulated Source
    6.
    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.

    DUAL EDGE SYNCHRONIZATION OF ANALOG INPUT TO REDUCE SWITCH POINT JITTER
    7.
    发明申请
    DUAL EDGE SYNCHRONIZATION OF ANALOG INPUT TO REDUCE SWITCH POINT JITTER 审中-公开

    公开(公告)号：US20190334692A1

    公开(公告)日：2019-10-31

    申请号：US15966572

    申请日：2018-04-30

    Applicant: Allegro MicroSystems, LLC

    Inventor： Jay M. Towne ,  Steven E. Snyder ,  Steven Ricco ,  Matthew Nealon

    IPC: H04L7/00 ,  G01J1/44 ,  G01K15/00 ,  G01R35/00 ,  G01D18/00

    Abstract: A method for synchronization of an input signal includes providing the input signal to a first signal path associated with a first clock and to a second signal path associated with a second clock, detecting an edge of the input signal by detecting values of the input signal along the first signal path at a first rising edge of the first clock and at a second rising edge of the first clock, detecting a value of the input signal along the second signal path at an edge of the second clock, and selecting the input signal from the first signal path or from the second signal path according to the detected value of the input signal along the second path when an edge of the input signal along the first path is detected.

    Methods And Apparatus For Monitoring A Level Of A Regulated Source
    8.
    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
    10.
    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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