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    • 2. 发明申请
    • DRIVER CIRCUIT AND METHOD WITH REDUCED DI/DT AND HAVING DELAY COMPENSATION
    • 驱动电路和减少DI / DT并具有延迟补偿的方法
    • WO2006052667A3
    • 2007-08-09
    • PCT/US2005039818
    • 2005-11-03
    • INT RECTIFIER CORPTHIERY VINCENTNADD BRUNOMOURRIER ANDRE
    • THIERY VINCENTNADD BRUNOMOURRIER ANDRE
    • H02H9/06
    • H03K19/00323H03K4/00H03K17/166H03K2005/00078
    • A method of driving a power transistor switch comprising: receiving a drive input signal; converting the drive input signal into a converted drive input signal; and providing the converted gate drive input signal to a control electrode of the switch to turn on the switch, the converted drive input signal having three regions with respect to time, each having a slope, a first region in time having a first slope up to a Miller Plateau of the switch; a second region in time having a second slope with a reduced slope compared with the first slope; and a third region having a third slope that is greater than the second slope, whereby the control electrode voltage rapidly reaches the Miller Plateau voltage, then more slowly reaches a threshold voltage of the switch and then, when the switch has substantially fully turned on, the control electrode voltage is rapidly increased. The switch delay time is also maintained substantially constant by adjusting the transistor control electrode precharge voltage.
    • 一种驱动功率晶体管开关的方法,包括:接收驱动输入信号; 将驱动输入信号转换成转换的驱动输入信号; 并且将转换的栅极驱动输入信号提供给开关的控制电极以接通开关,所转换的驱动输入信号具有相对于时间的三个区域,每个区域具有斜率,第一区域具有第一斜率,直到 米勒高原的开关; 第二区域的时间具有与第一斜率相比具有减小的斜率的第二斜率; 以及具有大于第二斜率的第三斜率的第三区域,由此控制电极电压迅速达到米勒高原电压,然后更缓慢地达到开关的阈值电压,然后当开关基本上完全导通时, 控制电极电压迅速增加。 通过调节晶体管控制电极预充电电压,开关延迟时间也保持基本恒定。