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    • 49. 发明授权
    • Driver circuit
    • 驱动电路
    • US08410817B2
    • 2013-04-02
    • US12858295
    • 2010-08-17
    • Yuji KuwanaNaoki MatsumotoYasuhiro Urabe
    • Yuji KuwanaNaoki MatsumotoYasuhiro Urabe
    • H03K19/0175H03B1/00
    • H03K19/001H03K17/04126H03K19/0136H03K2217/0036
    • A level switch circuit receives a digital input signal, and generates a level signal having a voltage level that corresponds to the value of the input signal thus received. A buffer circuit receives a level signal, and outputs the level signal via an output terminal thereof. A bias current generating circuit generates a bias current including a DC component having a constant level and a variable component that changes according to the input signal, and supplies the bias current thus generated to a buffer circuit. The bias current generating circuit detects an edge of the input signal, and raises the bias current by a predetermined amount for a predetermined period of time after the edge thus detected.
    • 电平开关电路接收数字输入信号,并产生具有与所接收的输入信号的值对应的电压电平的电平信号。 缓冲电路接收电平信号,并通过其输出端输出电平信号。 偏置电流产生电路产生包括具有恒定电平的DC分量和根据输入信号而变化的可变分量的偏置电流,并将由此产生的偏置电流提供给缓冲电路。 偏置电流产生电路检测输入信号的边缘,并且在如此检测到的边缘之后的预定时间段内将偏置电流提高预定量。