Circuit and method for generating circuit power on reset signal
    46.
    发明申请
    Circuit and method for generating circuit power on reset signal 有权
    用于产生电路上电复位信号的电路和方法

    公开(公告)号:US20070170961A1

    公开(公告)日:2007-07-26

    申请号:US11366694

    申请日:2006-03-02

    IPC分类号: H03L7/00

    摘要: Disclosed is an improved circuit and method for generating a power on reset signal, the circuit being a two-stage circuit comprising a delay-stage circuit and an output-stage circuit. The delay-stage circuit delays a time for a power on reset signal generated in the output-stage circuit changing from low to high, so that a power voltage having a low rising speed may be normally reset. Further, the two stages provide charging paths and discharging paths so that the power on reset signal may be prevented from changing from high to low when it has changed from low to high, when noises are presented on the power voltage.

    摘要翻译: 公开了一种用于产生上电复位信号的改进的电路和方法,该电路是包括延迟级电路和输出级电路的两级电路。 延迟级电路延迟在输出级电路中产生的上电复位信号从低变为高的时间,使得具有低上升速度的电源电压可以被正常复位。 此外,两级提供充电路径和放电路径,使得当在电源电压上呈现噪声时,当从低电平变为高电平时,可以防止上电复位信号从高电平变为低电平。