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    • 5. 发明授权
    • 2-phase gain calibration and scaling scheme for switched capacitor sigma-delta modulator using a chopper voltage reference
    • 使用斩波电压参考的开关电容Σ-Δ调制器的2相增益校准和缩放方案
    • US08339299B2
    • 2012-12-25
    • US13004127
    • 2011-01-11
    • Vincent QuiquempoixYann JohnerGabriele Bellini
    • Vincent QuiquempoixYann JohnerGabriele Bellini
    • H03M3/00
    • H03M1/0663H03M1/0665H03M3/422H03M3/456H03M3/464
    • A sigma-delta modulator has a chopper voltage reference providing a reference signal having a clock dependent offset voltage, a single-bit or a multi-bit digital-to-analog converter (DAC); a plurality of capacitor pairs; a plurality of switches to couple any capacitor pair to an input or reference signal; and a control unit controlling sampling through said switches to perform a charge transfer in two phases wherein any capacitor pair can be selected to be assigned to the input or reference signal, wherein after a plurality of charge transfers a gain error cancellation is performed by rotating the capacitor pairs cyclically, and wherein a DAC output value and a reference offset state define switching sequences wherein each switching sequence independently rotates said capacitor pairs and wherein at least one switching sequence is selected depending on a current DAC output value and a current reference offset state.
    • Σ-Δ调制器具有提供具有时钟相关偏移电压的参考信号的斩波器参考电压,单位或多位数模转换器(DAC); 多个电容器对; 多个开关,用于将任何电容器对耦合到输入或参考信号; 以及控制单元,其控制通过所述开关的采样以执行两个阶段的电荷转移,其中可以选择任何电容器对来分配给输入或参考信号,其中在多个电荷传输之后,通过旋转增益误差来执行增益误差消除 电容器对,并且其中DAC输出值和参考偏移状态定义切换序列,其中每个切换序列独立地旋转所述电容器对,并且其中根据当前DAC输出值和当前参考偏移状态来选择至少一个切换序列。
    • 6. 发明授权
    • Compensated bandgap
    • 补偿带隙
    • US08222955B2
    • 2012-07-17
    • US12818887
    • 2010-06-18
    • Philippe DuvalYann JohnerFabien Vaucher
    • Philippe DuvalYann JohnerFabien Vaucher
    • G05F1/10
    • G05F3/30
    • An integrated circuit has an untrimmed bandgap generation circuit; and a bandgap generation circuit coupled to the untrimmed bandgap generation circuit. The bandgap generation circuit has a current source controlled by the untrimmed bandgap generation circuit and coupled in series with a resistor and a first bipolar diode device, one or more of bipolar diode devices, each bipolar diode device coupled in parallel with the first bipolar diode device, wherein a trimmed bandgap reference voltage output of the integrated circuit is a function of the number of bipolar diode devices.
    • 集成电路具有未修整的带隙产生电路; 以及耦合到未校准带隙产生电路的带隙产生电路。 带隙产生电路具有由未调整的带隙产生电路控制的电流源,并与电阻器和第一双极二极管器件串联耦合,一个或多个双极二极管器件,每个双极二极管器件与第一双极二极管器件并联耦合 ,其中所述集成电路的修整带隙参考电压输出是双极二极管器件的数量的函数。
    • 7. 发明申请
    • COMPENSATED BANDGAP
    • 补偿带
    • US20110074495A1
    • 2011-03-31
    • US12818887
    • 2010-06-18
    • Philippe DuvalYann JohnerFabien Vaucher
    • Philippe DuvalYann JohnerFabien Vaucher
    • G05F3/02
    • G05F3/30
    • An integrated circuit has an untrimmed bandgap generation circuit; and a bandgap generation circuit coupled to the untrimmed bandgap generation circuit. The bandgap generation circuit has a current source controlled by the untrimmed bandgap generation circuit and coupled in series with a resistor and a first bipolar diode device, one or more of bipolar diode devices, each bipolar diode device coupled in parallel with the first bipolar diode device, wherein a trimmed bandgap reference voltage output of the integrated circuit is a function of the number of bipolar diode devices.
    • 集成电路具有未修整的带隙产生电路; 以及耦合到未校准带隙产生电路的带隙产生电路。 带隙产生电路具有由未调整的带隙产生电路控制的电流源,并与电阻器和第一双极二极管器件串联耦合,一个或多个双极二极管器件,每个双极二极管器件与第一双极二极管器件并联耦合 ,其中所述集成电路的修整带隙参考电压输出是双极二极管器件的数量的函数。
    • 8. 发明申请
    • 2-PHASE GAIN CALIBRATION AND SCALING SCHEME FOR SWITCHED CAPACITOR SIGMA-DELTA MODULATOR USING A CHOPPER VOLTAGE REFERENCE
    • 使用斩波电压参考的开关电容器SIGMA-DELTA调制器的2相增益校准和调整方案
    • US20110163901A1
    • 2011-07-07
    • US13004127
    • 2011-01-11
    • Vincent QuiquempoixYann JohnerGabriele Bellini
    • Vincent QuiquempoixYann JohnerGabriele Bellini
    • H03M3/02
    • H03M1/0663H03M1/0665H03M3/422H03M3/456H03M3/464
    • A sigma-delta modulator has a chopper voltage reference providing a reference signal having a clock dependent offset voltage, a single-bit or a multi-bit digital-to-analog converter (DAC); a plurality of capacitor pairs; a plurality of switches to couple any capacitor pair to an input or reference signal; and a control unit controlling sampling through said switches to perform a charge transfer in two phases wherein any capacitor pair can be selected to be assigned to the input or reference signal, wherein after a plurality of charge transfers a gain error cancellation is performed by rotating the capacitor pairs cyclically, and wherein a DAC output value and a reference offset state define switching sequences wherein each switching sequence independently rotates said capacitor pairs and wherein at least one switching sequence is selected depending on a current DAC output value and a current reference offset state.
    • Σ-Δ调制器具有提供具有时钟相关偏移电压的参考信号的斩波器参考电压,单位或多位数模转换器(DAC); 多个电容器对; 多个开关,用于将任何电容器对耦合到输入或参考信号; 以及控制单元,其控制通过所述开关的采样以执行两个阶段的电荷转移,其中可以选择任何电容器对来分配给输入或参考信号,其中在多个电荷传输之后,通过旋转增益误差来执行增益误差消除 电容器对,并且其中DAC输出值和参考偏移状态定义切换序列,其中每个切换序列独立地旋转所述电容器对,并且其中根据当前DAC输出值和当前参考偏移状态来选择至少一个切换序列。