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    Circuit arrangement for voltage-isolated control of series semiconducting switch elements has secondary stage producing positive and negative pulses for switch-on and switch-off phases
    2.
    发明专利
    Circuit arrangement for voltage-isolated control of series semiconducting switch elements has secondary stage producing positive and negative pulses for switch-on and switch-off phases 未知

    公开(公告)号：DE10146900A1

    公开(公告)日：2003-04-10

    申请号：DE10146900

    申请日：2001-09-24

    Applicant: ABB RESEARCH LTD

    Inventor： MAST JOCHEN ,  NAEGER THOMAS ,  KREITZ ANDREAS

    IPC: H02M1/088 ,  H03K17/04 ,  H03K17/0412 ,  H03K17/10 ,  H03K17/691 ,  H02M1/08

    Abstract: The arrangement has at least one drive circuit per switch element with a voltage isolating transformer and a common device for generating drive signals. A circuit stage connected to the transformer secondary side produces a positive pulse during a switch-on phase and a negative pulse during a switch-off phase and damps the switching signal between the switch-off phase and the next switch-on phase. The arrangement has at least one drive circuit (4.1-4.n) per switch element (5.1-5.n) with a voltage isolating transformer and a common device (2) for generating drive signals whose rectangular output signal is fed into a drive current circuit (3) formed by series transformer primary windings as a switching signal. A circuit stage connected to the transformer secondary side produces a positive pulse during a switch-on phase and a negative pulse during a switch-off phase and damps the switching signal between the switch-off phase and the next switch-on phase. AN Independent claim is also included for the following: a method of voltage-isolated control of series semiconducting switch elements.

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