Integrated current-mirror arrangement comprising vertical transistors
    1.
    发明公开
    Integrated current-mirror arrangement comprising vertical transistors 失效
    Integrierte Stromspiegelschaltung mit vertikalen Transistoren。

    公开(公告)号:EP0346978A1

    公开(公告)日:1989-12-20

    申请号:EP89201487.9

    申请日:1989-06-09

    IPC分类号: G05F3/26 H01L27/06 H01L21/74

    CPC分类号: H01L27/0761 G05F3/265

    摘要: A current-mirror arrangement comprises a first and a second transistor whose bases are interconnected and connected to the collector of the first transistor. The transistors are constructed as vertical transistors each having a collector region (23a, 23b) of a first conductivity type, isolated from a substrate (21) of the first conductivity type by an intermediate layer (22) of a second conductivity type, a connection being provided between said intermediate layer (22) and the interconnected bases (29, 30) of the two transistors.

    摘要翻译: 电流镜装置包括第一和第二晶体管,其基极互连并连接到第一晶体管的集电极。 晶体管被构造为垂直晶体管,每个晶体管具有通过第二导电类型的中间层(22)与第一导电类型的衬底(21)隔离的第一导电类型的集电极区域(23a,23b),连接 设置在所述中间层(22)和两个晶体管的互连基座(29,30)之间。

    Amplifier arrangement
    2.
    发明公开
    Amplifier arrangement 失效
    放大器排列

    公开(公告)号:EP0406967A1

    公开(公告)日:1991-01-09

    申请号:EP90201757.3

    申请日:1990-07-02

    IPC分类号: H03F1/52

    CPC分类号: H03F1/52

    摘要: A first amplifier (A1) and a second amplifier (A2) are protected against short-circuits by a protection device comprising first means (M1), second means (M2), third means (M3) and protection means (B). For this purpose the first means (M1) and the second means (M2) generate four signals (s1, s2, s3, s4) related to an equal number of currents (i1, i2, i3, i4), which contribute to a first or a second load current in the first amplifier (A1) or in the second amplifier (A2). For controlling the protection means (B) the third means (M3) generate at least two control signals (r1, r2) related to the signals (s1, s2, s3, s4), use being made of the equality of the load currents in the absence of short-circuits.

    摘要翻译: 通过包括第一装置(M1),第二装置(M2),第三装置(M3)和保护装置(B)的保护装置来保护第一放大器(A1)和第二放大器(A2)免于短路。 为此,第一装置(M1)和第二装置(M2)产生与相同数量的电流(i1,i2,i3,i4)有关的四个信号(s1,s2,s3,s4) 或第一放大器(A1)或第二放大器(A2)中的第二负载电流。 为了控制保护装置(B),第三装置(M3)产生与信号(s1,s2,s3,s4)有关的至少两个控制信号(r1,r2),使用负载电流 没有短路。

    Amplifier arrangement
    3.
    发明公开
    Amplifier arrangement 失效
    放大器排列

    公开(公告)号:EP0408137A1

    公开(公告)日:1991-01-16

    申请号:EP90201837.3

    申请日:1990-07-09

    IPC分类号: H03F3/30 H03F1/02 H03F1/32

    摘要: In order to boost the output power of a first amplifier (A1) a second amplifier (A2) can increase the supply voltage difference across the first amplifier (A1). However, variations of the supply voltage difference are attended with a comparatively high distortion. In order to minimize this distortion while maintaining the output power a signal-follower circuit (M1, M2, S) generates a direct voltage level of which tracks a first output signal (Vuit1) of the first amplifier (A1), for which purpose the signal-follower circuit (M1, M2, S) is driven by a third amplifier (A3), which compares the first output signal (Vuit1) with a reference signal (Vref).

    摘要翻译: 为了提高第一放大器(A1)的输出功率,第二放大器(A2)可以增加第一放大器(A1)两端的电源电压差。 然而,电源电压差异的变化伴随着相对较高的失真。 为了在保持输出功率的同时使该失真最小化,信号跟随器电路(M1,M2,S)产生跟踪第一放大器(A1)的第一输出信号(Vuit1)的直流电压电平,为此目的, 信号跟随器电路(M1,M2,S)由第三放大器(A3)驱动,该第三放大器将第一输出信号(Vuit1)与参考信号(Vref)进行比较。

    Amplifier arrangement
    5.
    发明公开
    Amplifier arrangement 失效
    放大器排列

    公开(公告)号:EP0309063A1

    公开(公告)日:1989-03-29

    申请号:EP88202067.0

    申请日:1988-09-22

    IPC分类号: H03F3/30 H03F1/32

    摘要: The first (T₁) and the second (T₂) output transistor of an amplifier arrangement are push-pull driven by means of a drive circuit (10) having two transistors (T₁₁, T₁₂) which are each loaded by a current source (T₁₃, T₁₄). Currents which are a measure of the currents flowing through the first (T₁) and the second (T₂) output transistor are generated by a first (20) and second (30) current measuring means. These currents are applied to a negative feedback means (40) which controls the current intensity of the current sources (T₁₃, T₁₄) in such a way that the harmonic mean value of the currents flowing through the first (T₁) and the second (T₂) output transistor is substantially equal to a reference value.

    摘要翻译: 放大器装置的第一(T 1)和第二(T 2)输出晶体管通过具有两个晶体管(T 11,T 12)的驱动电路(10)进行推挽驱动,每个晶体管由电流源(T 13, T₁₄)。 用第一(20)和第二(30)电流测量装置产生流过第一(T 1)和第二(T 2)输出晶体管的电流的量度的电流。 这些电流加到负反馈装置(40),该装置控制电流源(T 13,T 14)的电流强度,使得流过第一(T 1)和第二(T 2)电流的谐波平均值 )输出晶体管基本上等于参考值。