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    • 1. 发明授权
    • Current-source arrangement
    • 电流源安排
    • US4605892A
    • 1986-08-12
    • US705763
    • 1985-02-26
    • Evert SeevinckAdrianus J. M. Van Tuijl
    • Evert SeevinckAdrianus J. M. Van Tuijl
    • G05F3/26G05F3/22G05F3/20
    • G05F3/227
    • A current-source arrangement supplying a current which increases directly proportionally to the supply voltage (V.sub.S) and which is suitable for operation with supply voltages above approximately 0.7 V, comprises a first resistor (R.sub.10 =R) in which a current (V.sub.S -V.sub.BE)/R flows, which current is supplied by a first transistor (T.sub.10) via a first current-mirror circuit (T.sub.11, T.sub.12) and a second current-mirror circuit (T.sub.13, T.sub.14). A second resistor (R.sub.2 =R) is arranged in parallel with the base-emitter junction of the input transistor (T.sub.11) of the first current-mirror circuit (T.sub.11, T.sub.12), through which second resistor (R.sub.2) a current V.sub.BE /R flows which is supplied by the first transistor (T.sub.10) via the collector-base interconnection of the input transistor (T.sub.11). The total current flowing through the first transistor (T.sub.10) is then equal to V.sub.S /R. This current can be taken from the collector terminals (15A, 15B) of the transistors (T.sub.15A, T.sub.15B), whose base-emitter junctions are connected in parallel with the base-emitter junction of the first transistor (T.sub.10).
    • 提供电流源装置包括:第一电阻器(R10 = R),其中电流(VS-VBE)与电源电压(VS)直接成比例地增加并且适合于电源电压高于约0.7V的操作 )/ R流动,该电流由第一晶体管(T10)经由第一电流镜电路(T11,T12)和第二电流镜电路(T13,T14)提供。 第二电阻器(R2 = R)与第一电流镜电路(T11,T12)的输入晶体管(T11)的基极 - 发射极并联排列,第二电阻器(R2)通过电流VBE / R 由第一晶体管(T10)经由输入晶体管(T11)的集电极 - 基极互连提供的流。 流过第一晶体管(T10)的总电流等于VS / R。 该电流可以从其基极 - 发射结与第一晶体管(T10)的基极 - 发射极并联连接的晶体管(T15A,T15B)的集电极端子(15A,15B)获取。
    • 3. 发明授权
    • Deflection with low offset
    • 偏移量偏低
    • US6002453A
    • 1999-12-14
    • US941639
    • 1997-09-30
    • Adrianus J. M. Van TuijlErik Van Der Ven
    • Adrianus J. M. Van TuijlErik Van Der Ven
    • H04N3/16G09G1/04H04N3/22H04N3/233H04N5/68
    • H04N3/22H04N3/233
    • A series arrangement of a deflection coil (Lf) and a series resistor (Rs) is connected between an output of a first output amplifier (1) and an output of a second output amplifier (2) to be driven in a bridge configuration for generating a deflection current (If) through the deflection coil (Lf). Across the series resistor (Rs), a voltage is generated which corresponds to the deflection current (If). A differential amplifier (5) has a first input connected to a first end of the series resistor (Rs). A second input of the differential amplifier (5) is connected to a second end of the series resistor (Rs) via a conversion resistor (Rc). An input current (Ii) is generated through the conversion resistor (Rc). The polarity of the input current (Ii) is selected to obtain a voltage across the conversion resistor (Rc) which has an opposite polarity with respect to the voltage across the series resistor (Rs). The differential amplifier (5) has two outputs connected to respective inputs of the first and the second output amplifiers (1, 2) to drive the two output amplifiers (1, 2) in a feedback loop in such a manner that the voltage across the series arrangement of the conversion resistor (Rc) and the series resistor (Rs) is substantially zero. In this way, the voltage swing between the inputs of the differential amplifier (5) is very low and thus the offset voltage caused will be very low.
    • 偏转线圈(Lf)和串联电阻(Rs)的串联布置连接在第一输出放大器(1)的输出端和第二输出放大器(2)的输出端之间,以桥式结构驱动以产生 通过偏转线圈(Lf)的偏转电流(If)。 跨串联电阻(Rs)产生对应于偏转电流(If)的电压。 差分放大器(5)具有连接到串联电阻(Rs)的第一端的第一输入端。 差分放大器(5)的第二输入端通过转换电阻器(Rc)连接到串联电阻器(Rs)的第二端。 通过转换电阻(Rc)产生输入电流(Ii)。 选择输入电流(Ii)的极性以获得相对于串联电阻器(Rs)两端的电压具有相反极性的转换电阻器(Rc)两端的电压。 差分放大器(5)具有连接到第一和第二输出放大器(1,2)的相应输入的两个输出,以在反馈回路中驱动两个输出放大器(1,2),使得 转换电阻器(Rc)和串联电阻器(Rs)的串联布置基本为零。 以这种方式,差分放大器(5)的输入之间的电压摆幅非常低,因此引起的偏移电压将非常低。
    • 6. 发明申请
    • DIFFERENTIAL AMPLIFIER WITH INPUT STAGE INVERTING COMMON-MODE SIGNALS
    • 具有反相共模信号的输入阶段的差分放大器
    • US20090115518A1
    • 2009-05-07
    • US12294221
    • 2007-03-21
    • Adrianus J. M. Van Tuijl
    • Adrianus J. M. Van Tuijl
    • H03F3/45
    • H03F3/45717H03F3/45192H03F2203/45078H03F2203/45366
    • To eliminate common-mode components in differential input signals without the necessity of introducing a transformer and a special feedback loop for eliminating common-mode components, a differential amplifier (1) comprises a first input stage (11) for receiving differential input signals comprising common-mode signals and for outputting first differential intermediate signals, a second input stage (12) for inverting the common-mode signals and for combining inverted common-mode signals and the first differential intermediate signals into second differential intermediate signals, and an output stage (13) for receiving the second differential intermediate signals and for outputting differential output signals. The first input stage (11) comprises a folded cascode stage with first and second transistors (31,32), the second input stage (12) comprises a mirror stage with third, fourth, fifth, sixth and seventh transistors (33,34,35,36,37), and the output stage (13) comprises a common main electrode stage with tenth and eleventh transistors (40,41).
    • 为了消除差分输入信号中的共模分量而不需要引入变压器和用于消除共模分量的专用反馈回路,差分放大器(1)包括第一输入级(11),用于接收差分输入信号,包括公共 模式信号并用于输出第一差分中间信号;第二输入级(12),用于将共模信号反相并将反相共模信号和第一差分中间信号组合成第二差分中间信号;以及输出级( 13),用于接收第二差分中间信号并输出​​差分输出信号。 第一输入级(11)包括具有第一和第二晶体管(31,32)的折叠共源共栅级,第二输入级(12)包括具有第三,第四,第五,第六和第七晶体管(33,34, 35,36,37),并且输出级(13)包括具有第十和第十一晶体管(40,41)的公共主电极级。
    • 8. 发明授权
    • Amplifier with floating inverting and non-inverting inputs and
stabilized direct output voltage level
    • 具有浮置反相和非反相输入和稳定的直接输出电压电平的放大器
    • US4661781A
    • 1987-04-28
    • US703146
    • 1985-02-19
    • Adrianus J. M. Van Tuijl
    • Adrianus J. M. Van Tuijl
    • H03F3/20H03F3/30H03F3/343H03F3/45H03F3/68
    • H03F3/45197H03F3/3066H03F3/343H03F3/45098
    • An amplifier having floating inverting and non-inverting inputs and a stabilized direct output voltage level. The amplifier comprises a preamplifier (10) and an output amplifier stage (20). The preamplifier (10) comprises a differential amplifier which comprises a first and a second transistor (T.sub.1, T.sub.2) between whose emitters a first resistor (R.sub.1) is arranged and whose emitters are connected to the positive direct power-supply terminal (2) by a first and a second current source (I.sub.1 =I, I.sub.2 =I) respectively. The collector of the second transistor (T.sub.2) is connected to the negative power-supply terminal (3) via a third current source (I.sub.3 =3.5I) and is coupled to the output (7) of the arrangement via a second resistor (R.sub.2). Two transistors (T.sub.3, T.sub.4) having commoned bases carrying a reference voltage (V.sub.R) are arranged in cascade with the third current source (I.sub.3). The collectors of these transistors are connected to the positive power-supply terminal (2) via a fourth and a fifth current source (I.sub.4 = I, I.sub.5 =I) respectively and are coupled to the first and the second input (5,6) of the output amplifier (20) respectively. This output amplifier (20) comprises two opposite conductivity type transistors (T.sub.5, T.sub.6) whose collectors are connected to the output (7). The resistance value of the second resistor (R.sub.2) is such that the direct voltage at the output (7) as a result of the current flowing through this resistor (R.sub.2) in the quiescent state is equal to half the supply voltage.
    • 具有浮置反相和非反相输入和稳定的直接输出电压电平的放大器。 放大器包括前置放大器(10)和输出放大器级(20)。 前置放大器(10)包括差分放大器,该差分放大器包括第一和第二晶体管(T1,T2),在其发射极之间布置有第一电阻器(R1),其发射极通过以下方式连接到正直接供电端子(2) 第一和第二电流源(I1 = I,I2 = I)。 第二晶体管(T2)的集电极通过第三电流源(I3 = 3.5I)连接到负电源端子(3),并通过第二电阻器(R2)耦合到配置的输出(7) )。 具有参考电压(VR)的共用基极的两个晶体管(T3,T4)与第三电流源(I3)级联布置。 这些晶体管的集电极分别经由第四和第五电流源(I4 = I,I5 = I)连接到正电源端子(2),并耦合到第一和第二输入端(5,6) 的输出放大器(20)。 该输出放大器(20)包括两个相反的导电型晶体管(T5,T6),其集电极连接到输出端(7)。 第二电阻器(R2)的电阻值使得在静态下流过该电阻器(R2)的电流的输出(7)处的直流电压等于电源电压的一半。