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    4.
    发明专利
    未知

    公开(公告)号：DE602005019590D1

    公开(公告)日：2010-04-08

    申请号：DE602005019590

    申请日：2005-12-02

    Applicant: ST MICROELECTRONICS SRL

    Inventor： CANNELLA ELIANA ,  ADRAGNA CLAUDIO ,  MARINO FILIPPO ,  TUMMINARO SALVATORE

    IPC: H02M1/38 ,  H02M3/337

    Abstract: Described herein is a device for driving a converter circuit that supplies a charge via a first electronic switch (LS) and a second electronic switch (HS) alternately turned on and off, with a first dead-time interval between turning-off of the first electronic switch and turning-on of the second electronic switch (HS) and a second dead-time interval between turning-off of the second electronic switch (HS) and turning-on of the first electronic switch. Turning-off of the second electronic switch (HS) is controlled as a function of a feedback signal (F) coming from the load (L). The device comprises: - a generator module (11a, C) for generating a memory signal (V c ), indicating the duration of the first dead-time interval; and - a delay module (11b, C, 14, 18, 20), sensitive to said memory signal (V c ) for controlling turning-on of the first electronic switch with a delay, with respect to turning-off of the second electronic switch (HS), identified by the aforesaid memory signal (V C ), so that the second dead-time interval has a duration substantially equal to the duration of the first dead-time interval.

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