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    Converter apparatus and method with auxiliary transistor for protecting components at startup
    2.
    发明授权
    Converter apparatus and method with auxiliary transistor for protecting components at startup 有权

    公开(公告)号：US10199924B2

    公开(公告)日：2019-02-05

    申请号：US15498163

    申请日：2017-04-26

    Applicant: Futurewei Technologies, Inc.

    Inventor： Dianbo Fu ,  Fei Ye ,  Lei Shi

    IPC: H02M1/32 ,  H02M1/36 ,  H02M7/44

    Abstract: An apparatus and associated method are provided involving a converter circuit. The converter circuit includes an inductor including a first terminal configured to be coupled to a power source, and a second terminal. Also included is a pair of serially-coupled transistors coupled to the second terminal of the inductor. The pair of serially-coupled transistors have a transistor intermediate node therebetween. Further included is a pair of serially-coupled diodes coupled to the second terminal of the inductor. The pair of serially-coupled diodes have a diode intermediate node therebetween. A first capacitor is coupled in parallel with the serially-coupled transistors and the serially-coupled diodes. Further, the converter circuit includes a sub-circuit having a second capacitor serially-coupled with an auxiliary transistor. The sub-circuit is coupled between the transistor intermediate node and the diode intermediate node.

    CONVERTER APPARATUS AND METHOD WITH AUXILIARY TRANSISTOR FOR PROTECTING COMPONENTS AT STARTUP
    3.
    发明申请
    CONVERTER APPARATUS AND METHOD WITH AUXILIARY TRANSISTOR FOR PROTECTING COMPONENTS AT STARTUP 审中-公开

    公开(公告)号：US20180316258A1

    公开(公告)日：2018-11-01

    申请号：US15498163

    申请日：2017-04-26

    Applicant: Futurewei Technologies, Inc.

    Inventor： Dianbo Fu ,  Fei Ye ,  Lei Shi

    IPC: H02M1/32 ,  H02M1/36 ,  H02M7/44

    CPC classification number: H02M1/36 ,  H02M3/158

    Abstract: An apparatus and associated method are provided involving a converter circuit. The converter circuit comprises an inductor including a first terminal configured to be coupled to a power source, and a second terminal. Also included is a pair of serially-coupled transistors coupled to the second terminal of the inductor. The pair of serially-coupled transistors have a transistor intermediate node therebetween. Further included is a pair of serially-coupled diodes coupled to the second terminal of the inductor. The pair of serially-coupled diodes have a diode intermediate node therebetween. A first capacitator is coupled in parallel with the serially-coupled transistors and the serially-coupled diodes. Further, the converter circuit includes a sub-circuit having a second capacitor serially-coupled with an auxiliary transistor. The sub-circuit is coupled between the transistor intermediate node and the diode intermediate node.

    Converter Apparatus and Method with Auxiliary Transistor for Protecting Components at Startup
    5.
    发明申请
    Converter Apparatus and Method with Auxiliary Transistor for Protecting Components at Startup 审中-公开

    公开(公告)号：US20190173374A1

    公开(公告)日：2019-06-06

    申请号：US16266983

    申请日：2019-02-04

    Applicant: Futurewei Technologies, Inc.

    Inventor： Dianbo Fu ,  Fei Ye ,  Lei Shi

    IPC: H02M1/32 ,  H02M7/44 ,  H02M1/36 ,  H02M3/158

    Abstract: In certain embodiments, an apparatus includes an inductor having first and second terminals. The first terminal is configured to be coupled to a power source. The apparatus includes a pair of serially-coupled transistors coupled to the second terminal of the inductor. A transistor intermediate node is positioned between the pair of serially-coupled transistors. The apparatus includes a pair of serially-coupled diodes coupled to the second terminal of the inductor. A diode intermediate node is positioned between the pair of serially-coupled diodes. The apparatus includes a first capacitor coupled in parallel with the serially-coupled transistors and the serially-coupled diodes. The apparatus includes a sub-circuit having a second capacitor serially-coupled with an auxiliary transistor. The sub-circuit is coupled between the transistor intermediate node and the diode intermediate node and is in parallel with a transistor of the pair of serially coupled transistors and with a diode of the pair of serially-coupled diodes.

    Converter apparatus and method with auxiliary transistor for protecting components at startup
    6.
    发明授权
    Converter apparatus and method with auxiliary transistor for protecting components at startup 审中-公开

    公开(公告)号：US10673318B2

    公开(公告)日：2020-06-02

    申请号：US16266983

    申请日：2019-02-04

    Applicant: Futurewei Technologies, Inc.

    Inventor： Dianbo Fu ,  Fei Ye ,  Lei Shi

    IPC: H02M1/32 ,  H02M1/36 ,  H02M3/158 ,  H02M7/44

    Abstract: In certain embodiments, an apparatus includes an inductor having first and second terminals. The first terminal is configured to be coupled to a power source. The apparatus includes a pair of serially-coupled transistors coupled to the second terminal of the inductor. A transistor intermediate node is positioned between the pair of serially-coupled transistors. The apparatus includes a pair of serially-coupled diodes coupled to the second terminal of the inductor. A diode intermediate node is positioned between the pair of serially-coupled diodes. The apparatus includes a first capacitor coupled in parallel with the serially-coupled transistors and the serially-coupled diodes. The apparatus includes a sub-circuit having a second capacitor serially-coupled with an auxiliary transistor. The sub-circuit is coupled between the transistor intermediate node and the diode intermediate node and is in parallel with a transistor of the pair of serially coupled transistors and with a diode of the pair of serially-coupled diodes.

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