PORTABLE CHARGING SYSTEM AND CHARGING METHOD
    25.
    发明申请

    公开(公告)号:US20200086747A1

    公开(公告)日:2020-03-19

    申请号:US16130071

    申请日:2018-09-13

    Abstract: An exemplary charging system includes, among other things, a first portable charger that electrically couples to an electrified vehicle to charge a traction battery of the electrified vehicle while a second portable charger is providing electrical energy to charge the traction battery. An exemplary charging method includes, among other things, electrically coupling both a first and a second portable charger to an electrified vehicle to charge a traction battery of the electrified vehicle using electrical energy from both the first and the second portable chargers.

    Sensorless temperature compensation for power switching devices

    公开(公告)号:US10122357B2

    公开(公告)日:2018-11-06

    申请号:US15350278

    申请日:2016-11-14

    Abstract: An inverter for an electric vehicle drive has a bridge including a plurality of power switching devices having respective insulated gate terminals and emitter terminals. A PWM circuit determines switching commands for controlling the bridge. A plurality of gate drivers receive the switching commands and provide gate drive signals to respective gate terminals. A plurality of gate capacitors are each thermally coupled to a respective switching device and are electrically connected between the respective gate and emitter terminals. Each gate capacitor has a negative temperature coefficient adapted to counter changes in a switching speed of the switching devices over a predetermined range of temperature. As a result, a consistent switching speed is maintained so that power loss and switching device reliability are optimal across the full temperature range.

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