Power conversion device and semiconductor device

    公开(公告)号:US11029740B2

    公开(公告)日:2021-06-08

    申请号:US16189089

    申请日:2018-11-13

    Abstract: There is to provide a power conversion device capable of estimating a junction temperature of a power transistor at a high accuracy. The control device includes a temperature estimation unit and controls the on and off of the power transistor through a driver. The voltage detection circuit detects the inter-terminal voltage of a source and drain terminals during the on-period of the power transistor. The temperature estimation unit previously holds the correlation information between the inter-terminal voltage and inter-terminal current of the source and drain terminals and the junction temperature, and estimates the junction temperature, based on the inter-terminal voltage detected by the voltage detection circuit, the known inter-terminal current, and the correlation information.

    SEMICONDUCTOR DEVICE AND ELECTRONIC APPARATUS

    公开(公告)号:US20190088629A1

    公开(公告)日:2019-03-21

    申请号:US16146097

    申请日:2018-09-28

    Abstract: An electronic apparatus includes a wiring board including a main surface on which a first wiring and a second wiring are formed, a first semiconductor device mounted on the main surface of the wiring board, and a second semiconductor device mounted on the main surface of the wiring board. Each of the first semiconductor device and the second semiconductor device includes a first semiconductor chip including an insulated gate bipolar transistor, a second semiconductor chip including a diode, a first lead electrically connected to an emitter electrode pad formed on a first front surface of the first semiconductor chip, a second lead electrically connected to an anode electrode pad formed on a second front surface of the second semiconductor chip, and a first terminal electrically connected to a collector electrode formed on a first back surface of the first semiconductor chip.

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