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    • 53. 发明申请
    • LEAKAGE CURRENT COMPENSATION
    • 泄漏电流补偿
    • US20110121888A1
    • 2011-05-26
    • US12623487
    • 2009-11-23
    • Dario GiottaMartin Clara
    • Dario GiottaMartin Clara
    • G05F1/10
    • G05F3/262
    • Implementations related to compensating for on-current leakage associated with current source arrangements are disclosed. An implementation may be provided that includes a replicated current mirror output stage. A circuit may be disposed between a current mirror output stage and the replicated current mirror output stage. The circuit may be implemented to drive a voltage associated with the current mirror output stage to a voltage level associated with the replicated current mirror output stage. A current may be supplied by the circuit to drive the voltage associated with the current mirror output stage. In one implementation, the current is substantially equal to an on-current leakage associated with the current mirror output stage.
    • 公开了与补偿与电流源装置相关的漏电流相关的实现。 可以提供包括复制的电流镜输出级的实现。 电路可以设置在电流镜输出级和复制电流镜输出级之间。 电路可以被实现为将与电流镜输出级相关联的电压驱动到与复制的电流镜输出级相关联的电压电平。 可以由电路提供电流以驱动与电流镜输出级相关联的电压。 在一个实施方案中,电流基本上等于与电流镜输出级相关联的导通电流泄漏。
    • 54. 发明授权
    • Common-mode robust high-linearity analog switch
    • 共模鲁棒高线性模拟开关
    • US07898329B1
    • 2011-03-01
    • US12582470
    • 2009-10-20
    • Martin ClaraDaniel GruberChristian Fleischhacker
    • Martin ClaraDaniel GruberChristian Fleischhacker
    • H03F3/45
    • H03G1/0088H03F3/45475H03F3/45932H03F2200/294H03F2200/411H03F2200/78H03G3/3052
    • A differential gain stage includes a plurality of programmable passive circuit component arrays operable to set a gain of the gain stage. The gain stage also includes an active switch gate control circuit and a passive switch gate control circuit. The active switch gate control circuit controls a gate voltage applied to transistor switch components of each programmable passive circuit component array as a function of the level of common mode disturbance input to the differential gain stage for common mode frequencies below a particular frequency threshold. The passive switch gate control circuit controls the gate voltage applied to the transistor switch components as a function of the level of common mode disturbance for common mode frequencies above the frequency threshold. The differential gain stage can for part of a receiver such as an xDSL receiver.
    • 差分增益级包括多个可编程无源电路组件阵列,可操作以设置增益级的增益。 增益级还包括有源开关门控制电路和无源开关门控制电路。 有源开关栅极控制电路控制施加到每个可编程无源电路组件阵列的晶体管开关组件的栅极电压,作为低于特定频率阈值的共模频率输入到差分增益级的共模干扰电平的函数。 无源开关栅极控制电路控制施加到晶体管开关部件的栅极电压作为高于频率阈值的共模频率的共模干扰电平的函数。 差分增益级可以用于诸如xDSL接收器的接收器的一部分。