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
    • 4. 发明申请
    • BODY-BIASED ENHANCED PRECISION CURRENT MIRROR
    • 身体偏心增强精度电流镜
    • US20060192611A1
    • 2006-08-31
    • US10906628
    • 2005-02-28
    • Anthony BonaccioHayden Cranford
    • Anthony BonaccioHayden Cranford
    • G05F1/10
    • G05F3/262
    • A body-biased enhanced current mirror reference circuit is disclosed wherein the body bias voltage of a current mirror device is varied to adjust its threshold voltage. Both the drain and body potentials of a replica mirror transistor are controlled to selected values. The drain is set to an expected DC voltage output of an NFET current mirror device. The body potential is set to a maximum desired value to prevent forward biasing of the body-to-diffusion junction(s) of one or more current mirror devices, which is accomplished by a feedback control circuit. A low-frequency, low-precision op amp drives the gate of a replica load device so that the body of the replica NFET current mirror device is set to a maximum bias voltage. The maximum bias voltage is also used to bias the body of a diode connected NMOS reference transistor, so that the current in the NFET current mirror device will be approximately equal to the current in the diode-connected NMOS reference. An auxiliary NFET current mirror device may be added to the body-biased enhanced current mirror circuit with the body connected to ground as in the unmodified current mirror to negate a non-monotonicity of the current output.
    • 公开了一种体偏置增强电流镜参考电路,其中电流镜装置的体偏置电压被改变以调节其阈值电压。 复制镜晶体管的漏极和体电位都被控制为选定值。 漏极设置为NFET电流镜器件的预期直流电压输出。 身体电位被设置为最大期望值,以防止由反馈控制电路实现的一个或多个电流镜装置的体对扩散结的正向偏置。 低频,低精度运算放大器驱动复制负载装置的栅极,使得复制NFET电流镜装置的主体被设置为最大偏置电压。 最大偏置电压也用于偏置二极管连接的NMOS参考晶体管的主体,使得NFET电流镜器件中的电流将近似等于连接二极管的NMOS参考电流。 辅助NFET电流镜装置可以被添加到主体偏置的增强电流镜电路中,其中主体连接到地面,如在未修改的电流镜中,以消除电流输出的非单调性。