中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

5 records (took 0.011 seconds)

    Fast over voltage and surge detection for high speed and load switches
    1.
    发明授权
    Fast over voltage and surge detection for high speed and load switches 有权

    公开(公告)号：US10910820B2

    公开(公告)日：2021-02-02

    申请号：US16049323

    申请日：2018-07-30

    Applicant: NXP B.V.

    Inventor： Harold Garth Hanson ,  Siamak Delshadpour

    IPC: H02H3/20 ,  H02H3/22

    Abstract: A protection circuit including a pad configured to input an external voltage from a connector, a first circuit branch connected to the pad and configured to receive a fast ramp-up surge at the pad, a second circuit branch connected to the pad and configured to receive a ramp-up surge at the pad, a third circuit branch connected to the pad and configured to output a surge detection signal when a surge voltage is received at the pad, an enabling transistor connected between the second circuit branch and the third circuit branch, at least one switch to be protected, and a controller configured to control components of the second circuit branch and third circuit branch of the protection circuit based on an on-state of the at least one switch to be protected.

    Watchdog Circuit
    3.
    发明申请
    Watchdog Circuit 有权

    公开(公告)号：US20170279299A1

    公开(公告)日：2017-09-28

    申请号：US15082025

    申请日：2016-03-28

    Applicant: NXP B.V.

    Inventor： Ge Wang ,  Harold Garth Hanson

    IPC: H02J9/06 ,  G06F11/07

    CPC classification number: H02J9/061 ,  G06F1/24 ,  G06F11/0736 ,  G06F11/0745 ,  G06F11/0757 ,  G06F11/0793

    Abstract: One example discloses a watchdog circuit: wherein the watchdog circuit is configured to receive a primary ground from a primary power supply, and a backup ground from a backup power supply; wherein the watchdog circuit includes a ground switch coupled to the primary ground and the backup ground; and wherein the ground switch is configured to isolate the primary ground from the backup ground in response to a fault signal.

    INPUT PIN STATE DETECTION CIRCUIT AND METHOD THEREFOR
    4.
    发明申请
    INPUT PIN STATE DETECTION CIRCUIT AND METHOD THEREFOR 有权
    输入引脚状态检测电路及其方法

    公开(公告)号：US20150214948A1

    公开(公告)日：2015-07-30

    申请号：US14677658

    申请日：2015-04-02

    Applicant: NXP B.V.

    Inventor： Dominicus Marinus Roozeboom ,  Sharad Murari ,  Harold Garth Hanson

    IPC: H03K19/0175 ,  H03K19/173 ,  H03K5/24

    CPC classification number: H03K19/017581 ,  H03K5/24 ,  H03K19/173 ,  H03M1/365

    Abstract: A state-detection circuit facilitates the detection of the state of an input pin relative to several different types of input circuits. According to an example embodiment, a state-detection circuit includes a plurality of comparators and circuit components, configured to provide a plurality of binary output signals that collectively indicate a state of an input pin to which the comparators are coupled. The state-detection circuit is configured to facilitate the detection of several different types of input circuits, based upon the binary output signals.

    Abstract translation: 状态检测电路有助于检测输入引脚相对于多种不同类型的输入电路的状态。 根据示例实施例，状态检测电路包括多个比较器和电路部件，其被配置为提供多个二进制输出信号，其共同指示比较器耦合到的输入引脚的状态。 状态检测电路被配置为便于基于二进制输出信号检测几种不同类型的输入电路。

Patent Agency Ranking