公开(公告)号：US09000961B2

公开(公告)日：2015-04-07

申请号：US14085276

申请日：2013-11-20

Applicant: ABB Technology AG

Inventor： Joris Pascal ,  Stéphane Isler

IPC: H03M3/02 ,  H03M1/10 ,  H03M1/06 ,  H03M3/00

CPC classification number: H03M1/0609 ,  H03M1/1004 ,  H03M3/382 ,  H03M3/43

Abstract: An arrangement for reading out an analog voltage input signal includes an input applying the input signal thereto, and a reference unit generating an analog reference voltage. To perform online self-calibration, the arrangement includes a superposition unit generating a combined analog signal by superimposing the analog reference voltage onto the input signal, a converting unit converting the combined analog signal into a one-bit serial data stream at a conversion sampling rate, and a decomposition unit, which includes at least two digital filters configured to generate from the serial data stream two corresponding digital signals at different data rates, which can be less than the conversion sampling rate. Two data processing units calculate from the corresponding digital signal a digital input voltage representing the input signal and a digital reference voltage representing the analog reference voltage or a disturbance voltage signal representing parasitic voltage components introduced by the superposition unit, respectively.

Abstract translation: 用于读出模拟电压输入信号的装置包括施加输入信号的输入端和产生模拟参考电压的参考单元。 为了执行在线自校准，该装置包括叠加单元，通过将模拟参考电压叠加到输入信号上产生组合的模拟信号，转换单元以转换采样率将组合的模拟信号转换成1位串行数据流 以及分解单元，其包括至少两个数字滤波器，所述至少两个数字滤波器被配置为从串行数据流生成两个不同数据速率的对应的数字信号，其可以小于转换采样率。 两个数据处理单元从对应的数字信号计算表示输入信号的数字输入电压和表示模拟参考电压的数字参考电压或表示由叠加单元引入的寄生电压分量的干扰电压信号。

公开(公告)号：US20140077980A1

公开(公告)日：2014-03-20

申请号：US14085276

申请日：2013-11-20

Applicant: ABB TECHNOLOGY AG

Inventor： Joris PASCAL ,  Stéphane Isler

IPC: H03M1/06

CPC classification number: H03M1/0609 ,  H03M1/1004 ,  H03M3/382 ,  H03M3/43

Abstract: An arrangement for reading out an analog voltage input signal includes an input applying the input signal thereto, and a reference unit generating an analog reference voltage. To perform online self-calibration, the arrangement includes a superposition unit generating a combined analog signal by superimposing the analog reference voltage onto the input signal, a converting unit converting the combined analog signal into a one-bit serial data stream at a conversion sampling rate, and a decomposition unit, which includes at least two digital filters configured to generate from the serial data stream two corresponding digital signals at different data rates, which can be less than the conversion sampling rate. Two data processing units calculate from the corresponding digital signal a digital input voltage representing the input signal and a digital reference voltage representing the analog reference voltage or a disturbance voltage signal representing parasitic voltage components introduced by the superposition unit, respectively.

Abstract translation: 用于读出模拟电压输入信号的装置包括施加输入信号的输入端和产生模拟参考电压的参考单元。 为了执行在线自校准，该装置包括叠加单元，通过将模拟参考电压叠加到输入信号上产生组合的模拟信号，转换单元以转换采样率将组合的模拟信号转换为1位串行数据流 以及分解单元，其包括至少两个数字滤波器，所述至少两个数字滤波器被配置为从串行数据流生成两个不同数据速率的对应的数字信号，其可以小于转换采样率。 两个数据处理单元从对应的数字信号计算表示输入信号的数字输入电压和表示模拟参考电压的数字参考电压或表示由叠加单元引入的寄生电压分量的干扰电压信号。