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    Oscillator circuit
    8.
    发明授权
    Oscillator circuit 有权
    振荡电路

    公开(公告)号：US08368475B2

    公开(公告)日：2013-02-05

    申请号：US12731235

    申请日：2010-03-25

    申请人： Kenji Nakada ,  Nobuaki Umeki

    发明人： Kenji Nakada ,  Nobuaki Umeki

    IPC分类号： H03K3/26

    CPC分类号： H02M3/156 ,  H02M1/08 ,  H03B5/26

    摘要： A first capacitor is arranged such that the electric potential at a first terminal is fixed. A first discharging circuit discharges the first capacitor at a timing that corresponds to a cyclic synchronization signal received from an external circuit. A first comparator compares the voltage at a second terminal of the first capacitor with a predetermined threshold voltage, and generate a judgment signal that corresponds to the comparison result. A charging circuit generates a charging current the current value of which is adjusted according to the level of the judgment signal at a timing that corresponds to the synchronization signal, and supplies the charging current thus generated to the first capacitor.

    摘要翻译： 第一电容器被布置成使得第一端子处的电位是固定的。 第一放电电路在对应于从外部电路接收到的循环同步信号的定时放电第一电容器。 第一比较器将第一电容器的第二端子处的电压与预定阈值电压进行比较，并且生成与比较结果相对应的判断信号。 充电电路根据与同步信号相对应的定时根据判断信号的电平来产生其当前值的充电电流，并将这样产生的充电电流提供给第一电容器。