Circuit for generating a reference electrical quantity
    2.
    发明公开
    Circuit for generating a reference electrical quantity 审中-公开
    Kreis zur Erzeugung einer Referenzfüreine elektrische Menge

    公开(公告)号:EP2339423A1

    公开(公告)日:2011-06-29

    申请号:EP10194515.2

    申请日:2010-12-10

    CPC classification number: G05F3/30

    Abstract: A circuit for generating a reference electrical quantity ( I REF , V REF ) , including: a first bipolar transistor (T bjt1 ) and a second bipolar transistor (T bjt2 ) having the base terminals connected to one another and to a common node (N C ) ; a first resistor (R A ) connected to the emitter terminal of the second bipolar transistor (T bjt2 ); a first mirror circuit and a second mirror circuit (T 1 , T 2 , T s1 , T s3 , T m , T s2 , T s4 ) connected to the first and second bipolar transistors (T bjt1 , T bjt2 ) , which receive, respectively, a first current (I PTAT) and a second current (I NTAT ) and generate, respectively, a first mirrored current (γI PTAT ) and a second mirrored current (αI NTAT ); a first output stage (6, 8), which generates the reference electrical quantity (I REF , V REF ) as a function of the first and second mirrored currents (γI PTAT αI NTAT ) and a second resistor (R B ) connected to the common node (N C ). The first current (I PTAT ) is a function of the current in the first resistor (R A ), whilst the second current (I NTAT ) is a function of the current in the second resistor (R B ).

    Abstract translation: 一种用于产生参考电量(I REF,V REF)的电路,包括:第一双极晶体管(T bjt1)和第二双极晶体管(T bjt2),其基极彼此连接并连接到公共节点 ); 连接到第二双极晶体管(T bjt2)的发射极端子的第一电阻器(R A); 连接到第一和第二双极晶体管(T bjt1,T bjt2)的第一镜电路和第二镜电路(T 1,T 2,T s1,T s3,T m,T s2,T s4) 分别为第一电流(I PTAT)和第二电流(I NTAT),分别产生第一镜像电流(IIIIATT)和第二镜像电流(±I NTAT); 第一输出级(6,8),其产生作为第一和第二镜像电流(31IATAT±I NTAT)的函数的参考电量(I REF,V REF)和连接到第一输出级的第二电阻器 公共节点(NC)。 第一电流(I PTAT)是第一电阻器(R A)中的电流的函数,而第二电流(I NTAT)是第二电阻器(R B)中的电流的函数。

Patent Agency Ranking