PREDRIVER SHORT PROTECTION
    2.
    发明申请

    公开(公告)号:US20170317619A1

    公开(公告)日:2017-11-02

    申请号:US15142852

    申请日:2016-04-29

    Abstract: A gate driver circuit includes a comparator and a gate driver. The comparator is configured to detect a short circuit in a first power field effect transistor (FET). The gate driver is configured to drive a gate of the first power FET by generating a first signal at a first drive current. In response to the comparator detecting a short circuit in the first power FET, the gate driver is further configured to pulse the first signal at a first pulldown current. After the pulse has ended, the gate driver is further configured to drive the gate of the first power FET at a first hold current. The first hold current is less than the first pulldown current.

    DETECTION OF A POWER STATE CHANGE IN A SERIAL BUS REPEATER

    公开(公告)号:US20220391345A1

    公开(公告)日:2022-12-08

    申请号:US17341089

    申请日:2021-06-07

    Abstract: A bus repeater includes first and second bus ports, a first termination resistor network coupled to the first bus port, a second termination resistor network coupled to the second bus port, and a power state change detection circuit coupled to the second bus port. The power state change detection circuit is configured to detect a power state change initiated by a device coupled to the first bus port. The detection of the power state change includes a determination that a voltage on the second bus port exceeds a threshold. Responsive to detection of the power state change, the power state change detection circuit is configured cause a change in a configuration of at least one of the first or second termination resistor networks.

    CURRENT SENSE CIRCUIT WITH ALTERNATING MEASUREMENT PATHS

    公开(公告)号:US20210328536A1

    公开(公告)日:2021-10-21

    申请号:US16849680

    申请日:2020-04-15

    Abstract: A system includes a motor and a motor controller coupled to the motor. The motor controller includes a current sense circuit configured to: receive a first phase current sense measurement on a first measurement path; receive the first phase current sense measurement on a second measurement path; receive a second phase current measurement on the first measurement path; receive the second phase current on the second measurement path; average the first phase current sense measurement on the first measurement path with the first phase current sense measurement on the second path; and average the second phase current sense measurement on the first measurement path with the second phase current sense measurement on the second path.

    OFFSET DRIFT COMPENSATION
    8.
    发明申请

    公开(公告)号:US20190296695A1

    公开(公告)日:2019-09-26

    申请号:US15934467

    申请日:2018-03-23

    Abstract: An offset drift compensation circuit for correcting offset drift that changes with temperature. In one example, offset drift compensation circuit includes a low temperature offset compensation circuit and a high temperature offset circuit. The low temperature offset compensation circuit is configured to compensate for drift in offset at a first rate below a selected temperature. The high temperature offset compensation circuit is configured to compensate for drift in offset at a second rate above the selected temperature. The first rate is different from the second rate.

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