Constant current source with threshold voltage and channel length modulation compensation
    61.
    发明申请
    Constant current source with threshold voltage and channel length modulation compensation 失效
    具有阈值电压和通道长度调制补偿的恒流源

    公开(公告)号:US20050046407A1

    公开(公告)日:2005-03-03

    申请号:US10919372

    申请日:2004-08-17

    申请人: Chun Lin

    发明人: Chun Lin

    IPC分类号: G05F3/26 H03K5/22

    CPC分类号: G05F3/267

    摘要: A constant current source with threshold voltage and channel length modulation comprises a set of cascade transistors and a compensation circuit electrically connected to the set of cascade transistors so as to form a feedback circuit, in which the set of cascade transistors including a first MOS transistor and a second MOS transistor, and the compensation circuit comprises a third MOS transistor, a fourth MOS transistor, a sixth MOS transistor and a seventh MOS transistor. The gate terminal of the third MOS transistor is connected to the gate terminal of the second MOS transistor. The fourth MOS transistor is connected to the third MOS transistor in serial, and the gate terminal of the fourth MOS transistor is connected to the gate terminal of the first MOS transistor, and the second terminal of the fourth MOS transistor is connected to a current-supplying circuit. The gate terminals of the sixth and seventh MOS transistors are electrically connected to the current-supplying circuit, and a current is generated by mirroring flows through the third MOS transistor.

    摘要翻译: 具有阈值电压和沟道长度调制的恒流源包括一组级联晶体管和与该组级联晶体管电连接的补偿电路,以便形成反馈电路,其中该组级联晶体管包括第一MOS晶体管和 第二MOS晶体管,并且所述补偿电路包括第三MOS晶体管,第四MOS晶体管,第六MOS晶体管和第七MOS晶体管。 第三MOS晶体管的栅极端子连接到第二MOS晶体管的栅极端子。 第四MOS晶体管串联连接到第三MOS晶体管,第四MOS晶体管的栅极端子连接到第一MOS晶体管的栅极端子,第四MOS晶体管的第二端子连接到电流 - 供电电路。 第六和第七MOS晶体管的栅极端子电连接到电流供应电路,并且通过镜像流过第三MOS晶体管产生电流。