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    • 9. 发明申请
    • Current flattening and current sensing methods and devices
    • 当前的扁平化和电流检测方法和装置
    • US20070076890A1
    • 2007-04-05
    • US11509036
    • 2006-08-24
    • Radu MuresanStefano Gregori
    • Radu MuresanStefano Gregori
    • H04K1/00
    • H04L9/0625G09C1/00H04L9/003H04L2209/12H04L2209/125H04L2209/127
    • Flattening total current consumption of system having processing core and power supply input by current sensing within system at power supply input and controlling system current consumption such that system current is reduced if over reference current threshold, and increased if below reference current threshold. Inject additional current through digital injections cells working higher frequencies, by increasing switching activity, by increasing voltage supply to core, and by increasing operating frequency of processor core. Feedback signal indicates current consumption of system. Current consumption similarly decreased. Current sensed by mirroring input current inline with power supply input and compensating for voltage drop introduced by mirroring using opposing field effect transistors and maintaining outputs at same voltage through feedback control loop. Processor core may be general purpose processor core or cryptographic processor core. System may be system-on-chip or system-on-package. System includes processor core and current flattening device based on method. Also, current flattening device and current sensor. On chip current sensor sensing current draw of processor core.
    • 通过电源输入和控制系统的电流消耗使系统内的电流检测系统的整体电流消耗达到整体系统的电流消耗,如果超过参考电流阈值,则系统电流降低,如果低于参考电流阈值则增加。 通过数字注入单元工作更高频率,通过增加开关活动,增加对核心的电压供应以及增加处理器内核的工作频率来注入额外的电流。 反馈信号表示系统的电流消耗。 电流消耗同样下降。 通过将输入电流与电源输入串联在一起而检测的电流,并补偿通过使用相反的场效应晶体管进行镜像引入的电压降,并通过反馈控制回路将输出保持在相同的电压。 处理器核心可以是通用处理器核心或加密处理器核心。 系统可以是片上系统或系统级封装。 系统包括基于方法的处理器核心和当前平坦化设备。 此外,目前的扁平装置和电流传感器。 片上电流传感器感应电流的处理器内核。