公开(公告)号：US20120161872A1

公开(公告)日：2012-06-28

申请号：US13338042

申请日：2011-12-27

申请人： Shifu Pang ,  Ding Li

发明人： Shifu Pang ,  Ding Li

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/45632 ,  H03F2203/45361 ,  H03F2203/45644

摘要： A comparator includes: a pre-amplification module, configured to generate two amplified differential signal reference currents according to an input voltage and a reference voltage; and a differential signal obtaining module, configured to obtain a differential signal according to the two amplified differential signal reference currents. The pre-amplification module includes a differential unit, an offset unit, and an amplification unit, where the differential unit is configured to generate two direct current bias currents according to the input voltage and the reference voltage; the offset unit is configured to generate an offset current of the two direct current bias currents according to the input voltage and the reference voltage, so as to reduce magnitude of the two direct current bias currents and obtain two differential signal reference currents; the amplification unit is configured to receive the two differential signal reference currents, and amplify the two differential signal reference currents.

摘要翻译： 比较器包括：预放大模块，被配置为根据输入电压和参考电压产生两个放大的差分信号参考电流; 以及差分信号获取模块，被配置为根据两个放大的差分信号参考电流获得差分信号。 预放大模块包括差分单元，偏移单元和放大单元，其中差分单元被配置为根据输入电压和参考电压产生两个直流偏置电流; 偏移单元被配置为根据输入电压和参考电压产生两个直流偏置电流的偏移电流，以便减小两个直流偏置电流的幅度并获得两个差分信号参考电流; 放大单元被配置为接收两个差分信号参考电流，并且放大两个差分信号参考电流。

公开(公告)号：US08446178B2

公开(公告)日：2013-05-21

申请号：US13338042

申请日：2011-12-27

申请人： Shifu Pang ,  Ding Li

发明人： Shifu Pang ,  Ding Li

IPC分类号： H03K5/22

CPC分类号： H03F3/45183 ,  H03F3/45632 ,  H03F2203/45361 ,  H03F2203/45644

摘要： A comparator includes: a pre-amplification module, configured to generate two amplified differential signal reference currents according to an input voltage and a reference voltage; and a differential signal obtaining module, configured to obtain a differential signal according to the two amplified differential signal reference currents. The pre-amplification module includes a differential unit, an offset unit, and an amplification unit, where the differential unit is configured to generate two direct current bias currents according to the input voltage and the reference voltage; the offset unit is configured to generate an offset current of the two direct current bias currents according to the input voltage and the reference voltage, so as to reduce magnitude of the two direct current bias currents and obtain two differential signal reference currents; the amplification unit is configured to receive the two differential signal reference currents, and amplify the two differential signal reference currents.

摘要翻译： 比较器包括：预放大模块，被配置为根据输入电压和参考电压产生两个放大的差分信号参考电流; 以及差分信号获取模块，被配置为根据两个放大的差分信号参考电流获得差分信号。 预放大模块包括差分单元，偏移单元和放大单元，其中差分单元被配置为根据输入电压和参考电压产生两个直流偏置电流; 偏移单元被配置为根据输入电压和参考电压产生两个直流偏置电流的偏移电流，以便减小两个直流偏置电流的幅度并获得两个差分信号参考电流; 放大单元被配置为接收两个差分信号参考电流，并且放大两个差分信号参考电流。