Power supply system with protection against current variations

    公开(公告)号:US12021372B2

    公开(公告)日:2024-06-25

    申请号:US17597832

    申请日:2020-07-24

    CPC classification number: H02H7/20 B60L3/0046 H02H1/0007 B60L2240/549

    Abstract: A power supply system includes a power supply circuit, a sensor of the current flowing through a terminal of the power supply circuit and a protection circuit. The protection circuit includes a differentiator adapted to measure a slope of a current measurement signal and comprises a driving stage. The power supply circuit is configured to receive a disconnection signal and, alternatively, to electrically connect the internal components thereof to its terminal or electrically disconnect the internal components thereof from its terminal, as a function of the value of the disconnection signal.

    Electronic device and control system of an ignition coil in an internal combustion engine

    公开(公告)号:US11739722B2

    公开(公告)日:2023-08-29

    申请号:US17631747

    申请日:2020-07-30

    CPC classification number: F02P3/0435 F02P11/00 F02P11/06 F02P17/12

    Abstract: An electronic device for controlling an ignition coil of an internal combustion engine includes a high voltage switch, a driving unit and a control unit. The driving unit controls the closure of the switch during charging energy in the primary winding and the opening of the switch during transferring energy from the primary winding to a secondary winding. A current measuring circuit is connected in series to a second terminal of the secondary winding to detect current generated on the secondary winding during the charging step and generate a signal representative of the detected current. The control unit receives the signal representative of the current detected by the measuring circuit, compares a relevant value of such signal with a predefined first reference value and activates a mode for detecting a soiling of the spark plug when the relevant value of the signal exceeds said predefined first reference value.

    ELECTRONIC IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE AND CONTROL METHOD FOR SAID ELECTRONIC IGNITION SYSTEM

    公开(公告)号:US20180298869A1

    公开(公告)日:2018-10-18

    申请号:US15574082

    申请日:2016-04-21

    Abstract: An electronic ignition system for an internal combustion engine. The system includes an ignition coil provided with at least a primary winding and a secondary winding, a switch connected to the primary winding and drivable to be in an opened and/or closed position according to a value of a driving signal, a control unit associated to the switch and configured to drive the switch to be in the open position and/or closed position according to the value of the driving signal (G). The system may also include current detection means associated with the secondary winding, in which the control unit is associated with the detection means for receiving a signal representative of at least a current value in the secondary winding, and configured to control the switch according to said signal.

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