CONTROL, REDUCTION AND EQUALIZATION OF DELAYS IN A LOW-SIDE DRIVER STAGE

    公开(公告)号:CA2120868A1

    公开(公告)日:1994-10-10

    申请号:CA2120868

    申请日:1994-04-08

    Abstract: CONTROL, REDUCTION AND EQUALIZATION OF DELAYS IN A LOWSIDE DRIVER STAGE" The turn-off delay time of a low-side driver (output power transistor), may be independently reduced and eventually made identical to the turn-on delay time by employing an auxiliary current generator that may be controlled by the same switching signal that controls a current generator employed for discharging the control node of the low-side driver, in order to provide an augmented discharging current during a first phase of a turn-off process. The contribution to the capacitance discharge current provided by said third current generator is automatically interrupted by means responsive to the voltage present on the driving node of the low-side driver, when it approaches saturation.

    16.
    发明专利
    未知

    公开(公告)号:ITMI992250A1

    公开(公告)日:2001-04-28

    申请号:ITMI992250

    申请日:1999-10-28

    Abstract: A control circuit for controlling current of batteries at the end of the charging phase, especially for lithium batteries, including an input/output circuit, placed between a battery charger and a battery, and an output stage, including two transistors, wherein the resistance of one of the two transistors is modulated to increase the value of the total resistance and to cause a lower turning off current of said output stage.

    17.
    发明专利
    未知

    公开(公告)号:DE69319326T2

    公开(公告)日:1998-10-29

    申请号:DE69319326

    申请日:1993-04-09

    Abstract: The turn-off delay time of a low-side driver (output power transistor), may be independently reduced and eventually made identical to the turn-on delay time by employing an auxiliary current generator that may be controlled by the same switching signal that controls a current generator employed for discharging the control node of the low-side driver, in order to provide an augmented discharging current during a first phase of a turn-off process. The contribution to the capacitance discharge current provided by said third current generator is automatically interrupted by means responsive to the voltage present on the driving node of the low-side driver, when it approaches saturation.

    20.
    发明专利
    未知

    公开(公告)号:DE69732699D1

    公开(公告)日:2005-04-14

    申请号:DE69732699

    申请日:1997-08-29

    Abstract: A linear type of voltage regulator, having an input terminal (VBAT) adapted to receive a supply voltage thereon, and an output terminal (VOUT) adapted to deliver a regulated output voltage, comprises a power transistor (M1) and a driving circuit therefor; the driving circuit basically comprises an operational amplifier (OP) having a differential input stage biased by a bias current (Iop) which varies proportionally with the output current (Iload) of the regulator.

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