会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 63. 发明申请
    • Circuit and method for controlling self-refresh cycle
    • 控制自刷新周期的电路和方法
    • US20070268767A1
    • 2007-11-22
    • US11647763
    • 2006-12-29
    • Kwi Dong Kim
    • Kwi Dong Kim
    • G11C11/406
    • G11C11/406G11C7/04G11C11/40615G11C11/40626G11C2211/4061G11C2211/4068
    • The present invention relates to a circuit and a method for controlling a self-refresh cycle of a dynamic random access memory or DRAM. A cell voltage is directly detected so that a self-refresh cycle can be variably controlled. Detectors each detecting whether or not a voltage charged into a capacitor of a detection cell drops to or below a reference voltage and outputs a detection signal. A pulse generator generates a self-refresh pulse while being linked with an enabled detection signal of the plurality of detectors. A self-refresh cycle can be variably controlled and set to be suitable for the charging capacity of a cell. The detection cell is adapted to the change of the charging capacity of the cell in accordance with a change in temperature.
    • 本发明涉及用于控制动态随机存取存储器或DRAM的自刷新周期的电路和方法。 直接检测电池电压,使得可以可变地控制自刷新周期。 检测器各自检测充电到检测单元的电容器中的电压是否下降到或低于参考电压,并输出检测信号。 脉冲发生器在与多个检测器的使能检测信号链接的同时产生自刷新脉冲。 自刷新周期可以被可变地控制并且设置成适合于电池的充电容量。 检测单元根据温度的变化适应电池的充电容量的变化。