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热词
    • 5. 发明授权
    • Apparatus comprising a brown-out protection circuit for memory devices
    • 包括用于存储器件的欠压保护电路的装置
    • US08351174B1
    • 2013-01-08
    • US12608918
    • 2009-10-29
    • Norman D. GardnerMingying Gu
    • Norman D. GardnerMingying Gu
    • H02H3/24
    • H02H3/243
    • An apparatus and method for regulating an output voltage (VO) of a voltage regulator during a brown-out condition is described. The apparatus comprises the voltage regulator, a brown-out protection circuit, a switch, and a first capacitor. The voltage regulator charges the first capacitor to the regulated output voltage VO. The brown-out protection circuit is coupled to the voltage regulator and the switch. In operation, the brown-out protection circuit detects the occurrence of an undervoltage condition based on a first undervoltage detection signal received at an undervoltage detection input, the brown-out protection circuit disables the voltage regulator and closes the switch to discharge the first capacitor to below a predetermined voltage level.
    • 描述了用于在欠压状态期间调节电压调节器的输出电压(VO)的装置和方法。 该装置包括电压调节器,欠压保护电路,开关和第一电容器。 电压调节器将第一个电容器充电到调节的输出电压VO。 欠压保护电路耦合到电压调节器和开关。 在运行中,欠压保护电路根据在欠压检测输入端接收到的第一欠电压检测信号,检测欠压状态的发生,欠压保护电路使电压调节器无效,闭合开关,将第一电容器放电至 低于预定电压电平。