公开(公告)号：US06384673B1

公开(公告)日：2002-05-07

申请号：US09763840

申请日：2001-02-27

申请人： Burkhard Dick ,  Dieter Janta

发明人： Burkhard Dick ,  Dieter Janta

IPC分类号： G05F110

CPC分类号： G05F3/265

摘要： A current mirror arrangement including an input current path comprising a main current path of a first current mirror transistor and a transistor connected thereto in a cascode configuration and referred to as first cascode transistor, an output current path comprising a main current path of a second current mirror transistor and a transistor connected thereto in a cascode configuration and referred to as second cascode transistor, the current mirror transistors being interconnected in a current mirror configuration and their control terminals being connected to a first circuit point, the connected control terminals of the cascode transistors being interconnected and being connected to an input terminal in the input current path of the current mirror arrangement, the input terminal being constituted by a terminal of the main current path of the first cascode transistor, and an output terminal being constituted by a terminal of the main current path of the second cascode transistor, and a current splitting circuit for deriving a part of a current from the first circuit point in the output terminal, the current splitting circuit is adapted to split up the current from the first circuit point directly to the output terminal and a reference point.

摘要翻译： 一种电流镜装置，包括输入电流路径，该输入电流路径包括第一电流镜晶体管的主电流路径和以共源共栅结构连接的晶体管并称为第一共源共栅晶体管，输出电流路径包括第二电流的主电流路径 镜像晶体管和以共成型结构连接的晶体管和被称为第二共源共栅晶体管的晶体管，电流镜晶体管以电流镜配置互连，并且其控制端连接到第一电路点，共源共栅晶体管的连接的控制端 互连并连接到电流镜装置的输入电流路径中的输入端，输入端由第一共源共栅晶体管的主电流路径的端子和由第一共源共栅晶体管的端子构成的输出端子 第二共源共栅晶体管的主电流通路，以及 用于从输出端子中的第一电路点导出一部分电流的电流分流电路，该分流电路适于将来自第一电路点的电流直接分配到输出端子和参考点。

公开(公告)号：US5936468A

公开(公告)日：1999-08-10

申请号：US973072

申请日：1997-11-03

申请人： Peter Wiese ,  Burkhard Dick

发明人： Peter Wiese ,  Burkhard Dick

IPC分类号： H03F3/30 ,  H03F3/45

CPC分类号： H03F3/45071 ,  H03F3/3066 ,  H03F3/45085 ,  H03F2203/45362 ,  H03F2203/45612 ,  H03F2203/45658 ,  H03F2203/45708

摘要： An operational amplifier includes two differential amplifiers, one of which is driven directly while the other is driven via two potential shifting members. Using a control stage, currents are derived from common differential current output nodes of the differential amplifiers, and are mirrored as a current difference on an output of the operational amplifier. A larger input and output driving range is thus obtained, and the operational amplifier is also capable of operating with a low supply voltage. Furthermore, the operational amplifier can be constructed using a relatively simple configuration and also has an output which is suitable for high-impedance switching.

摘要翻译： PCT No.PCT / IB97 / 00193 Sec。 371日期：1997年11月3日 102（e）日期1997年11月3日PCT 1997年3月3日PCT公布。 公开号WO97 / 33365 日期1997年9月12日运算放大器包括两个差分放大器，其中一个直接驱动，另一个通过两个电位移位构件驱动。 使用控制级，电流从差分放大器的公共差分电流输出节点导出，并且在运算放大器的输出上被镜像为电流差。 从而获得更大的输入和输出驱动范围，并且运算放大器还能够以低电源电压工作。 此外，可以使用相对简单的配置来构造运算放大器，并且还具有适合于高阻抗切换的输出。

公开(公告)号：US5818279A

公开(公告)日：1998-10-06

申请号：US812190

申请日：1997-03-06

申请人： Burkhard Dick

发明人： Burkhard Dick

IPC分类号： H03G11/08 ,  G06G7/24 ,  H03F3/45 ,  H03G7/00

CPC分类号： H03G7/001 ,  G06G7/24

摘要： A circuit arrangement having a logarithmic transfer function between an input signal and an output signal in a predefined level range of the input signal circuit which has a very low power consumption and low circuit complexity, includes a first pair of amplifier elements, namely transistors, forming a first differential amplifier and a second pair of amplifier elements, namely transistors, forming a second differential amplifier. The first pair of transistors have their emitters connected to each other and to a first current source, their collectors connected to working impedances subdivided by respective taps, and their bases receive the input signal between them. The second pair of transistors have their emitters connected to each other and to a second current source, their collectors connected to the collectors of the first pair of transistors, respectively, and their bases cross-connected to the taps of the working impedances. A rectifier stage has inputs connected to the collectors of the first and second pairs of transistors and an output at which the output signal is formed.

摘要翻译： 具有在输入信号和输入信号电路的预定义电平范围内的具有非常低的功耗和低电路复杂度的输出信号之间的对数传递函数的电路装置包括第一对放大器元件，即晶体管，形成 第一差分放大器和第二对放大器元件，即形成第二差分放大器的晶体管。 第一对晶体管的发射极彼此连接并连接到第一电流源，它们的集电极连接到由各个抽头细分的工作阻抗，它们的基极在它们之间接收输入信号。 第二对晶体管的发射极彼此连接并连接到第二电流源，它们的集电极分别连接到第一对晶体管的集电极，并且它们的基极交叉连接到工作阻抗的抽头。 整流器级具有连接到第一和第二对晶体管的集电极的输入端和形成输出信号的输出端。

公开(公告)号：US06307418B1

公开(公告)日：2001-10-23

申请号：US09700396

申请日：2000-11-13

申请人： Burkhard Dick

发明人： Burkhard Dick

IPC分类号： H03K1760

CPC分类号： H03D1/18

摘要： A rectifier circuit is described, which comprises an arrangement of a first, a second and a third transistor, emitters of said transistors being coupled together at a first junction point and to a terminal of a first constant current source and in which arrangement collectors of the first and the second transistor are coupled together at a second junction point, a current mirror arrangement having a predetermined mirror ratio, an input of said current mirror being coupled to the second junction point and an output of said current mirror being coupled to a collector of the third transistor at a third junction point, wherein an input voltage, by which the collector-emitter currents of the first and/or the second transistor are controllable, can be supplied to the rectifier circuit bia bases of the first and/or the second transistor, while an output voltage can be taken from the base of the third transistor of the rectifier circuit and the output voltage at least substantially corresponds to the rectified input voltage, and the first, the second and the third transistor have predetermined emitter regions. To provide a rectifier circuit of a simple structure, ensuring an at least substantially linear signal processing also in the range of its working point, the rectifier circuit according to the invention comprises a complementary current stage, which is controllable by the output voltage and supplies at least a complementary current to the input and/or output of the current mirror arrangement, said complementary current corresponding for all values of the output voltage at least substantially to the lower value of the collector-emitter currents of the first and the second transistor.

摘要翻译： 描述了整流器电路，其包括第一，第二和第三晶体管的布置，所述晶体管的发射极在第一连接点处耦合在一起并连接到第一恒定电流源的端子，并且其中集成器 第一和第二晶体管在第二连接点处耦合在一起，具有预定镜面比例的电流镜布置，所述电流镜的输入耦合到第二连接点，并且所述电流镜的输出耦合到 第三晶体管在第三连接点处，其中第一和/或第二晶体管的集电极 - 发射极电流可以控制的输入电压可以被提供给第一和/或第二晶体管的整流电路基极 晶体管，而可以从整流电路的第三晶体管的基极取出输出电压，并且输出电压至少基本对应 并且第一，第二和第三晶体管具有预定的发射极区域。 为了提供简单结构的整流电路，确保在其工作点的范围内至少基本上线性的信号处理，根据本发明的整流电路包括互补电流级，其可由输出电压控制并在 至少对电流镜配置的输入和/或输出的互补电流，所述互补电流至少基本上对应于第一和第二晶体管的集电极 - 发射极电流的较低值对应于输出电压的所有值。

公开(公告)号：US06281750B1

公开(公告)日：2001-08-28

申请号：US09578269

申请日：2000-05-25

申请人： Burkhard Dick

发明人： Burkhard Dick

IPC分类号： H03F345

CPC分类号： H03F3/45071 ,  H03F1/3211

摘要： A transistor amplifier is described having a first transistor pair, which comprises a first and a second transistor, and having a second transistor pair, which comprises a third and a fourth transistor, in which the transistors of each pair have their emitter electrodes coupled to each other and to an associated constant current source, the first transistor has its base electrode and its collector electrode coupled to the corresponding electrodes of the third transistor, and the second transistor has its base electrode and its collector electrode coupled to the corresponding electrodes of the fourth transistor, the base electrodes of the first and the third transistor, on the one hand, and the base electrodes of the second and the fourth transistor, on the other hand, being arranged to receive an input signal and an output signal being derivable from the collector electrodes of the transistors, and having a first, a second, a third and a fourth negative-feedback circuit each included in the coupling to the associated constant current source. In an amplifier of this type a high linearity and a low noise level are to be obtained with a circuit of low complexity. In accordance with the invention this is basically achieved in that the first and the fourth negative-feedback circuit each comprise a series arrangement of a plurality of n diode elements and the second and the third negative-feedback circuit each comprise a series arrangement of a plurality of n−1 diode elements, the last-mentioned arrangements being each connected to an input branch of a current mirror circuit. These current mirror circuits comprise output branches whose currents are fed at least partly, as a result of which their noise components do not affect the output signals of the transistor amplifier.

摘要翻译： 描述了晶体管放大器，其具有第一晶体管对，其包括第一和第二晶体管，并且具有第二晶体管对，其包括第三和第四晶体管，其中每对晶体管的发射极电极与每个晶体管耦合 第一晶体管的基极和其集电极耦合到第三晶体管的相应电极，第二晶体管的基极和其集电极耦合到第四晶体管的相应电极， 另一方面，一方面，第一和第三晶体管的基极和第二和第四晶体管的基极被布置为接收输入信号和可从该晶体管导出的输出信号 晶体管的集电极，并且具有第一，第二，第三和第四负反馈电路，每个包括i n耦合到相关恒流源。 在这种放大器中，通过低复杂度的电路可以获得高线性度和低噪声电平。 根据本发明，基本上实现了第一和第四负反馈电路各自包括多个n个二极管元件的串联布置，并且第二和第三负反馈电路各自包括多个 的n-1个二极管元件，最后提到的布置分别连接到电流镜电路的输入支路。 这些电流镜电路包括至少部分地馈送电流的输出分支，其结果是它们的噪声分量不影响晶体管放大器的输出信号。

公开(公告)号：US5977827A

公开(公告)日：1999-11-02

申请号：US096428

申请日：1998-06-12

申请人： Burkhard Dick

发明人： Burkhard Dick

IPC分类号： H03F3/45 ,  H03F1/32 ,  H03F3/68

CPC分类号： H03F1/3211

摘要： A circuit arrangement includes a first differential amplifier stage with two amplifier members whose main current paths are coupled to one another and, via a first reference current source, to a first reference potential, and are coupled to a respective output terminal as well as, via a respective output impedance, to a second reference potential, and whose control terminals can be supplied with a first control signal, an output signal being available at the output terminals. At least one further differential amplifier stage is provided, each of which includes two further amplifier members whose main current paths are coupled to one another and, via a respective further reference current source, to the first reference potential and whose control terminals can be supplied with (a) further control signal(s). Linearization of the transfer characteristic of the circuit arrangement can be achieved while avoiding a loss of gain in that the output impedances are preferably constructed as identical voltage dividers provided with a respective tapping for each further differential amplifier stage, the main current paths of the further differential amplifier stages are connected to each time two pair-wise mutually symmetrical tappings, providing a predetermined division, of the two voltage dividers, the ratio of the instantaneous values of the control signals to one another is predetermined, and the division of the tappings of the voltage dividers and the ratio of the currents supplied by the reference current sources are adjusted to one another in such a manner that output signal components which exhibit a dependency on at least one higher power of the control signals cancel out. This circuit arrangement also offers an improved noise factor.

摘要翻译： 电路装置包括具有两个放大器构件的第一差分放大器级，其主电流路径彼此耦合，并且经由第一参考电流源耦合到第一参考电位，并且耦合到相应的输出端，以及经由 相应的输出阻抗，到第二参考电位，并且其控制端可以被提供有第一控制信号，输出信号在输出端可用。 提供了至少一个另外的差分放大器级，其中每个还包括两个另外的放大器构件，其主电流路径彼此耦合，并且经由相应的另外的参考电流源到第一参考电位，并且其控制端可以被提供 （a）进一步的控制信号。 可以在避免增益损失的同时实现电路布置的传输特性的线性化，因为输出阻抗优选地被构造为与每个进一步的差分放大器级相应的分接头相同的分压器，其它差分的主电流路径 放大器级每次连接两对双向对称的抽头，提供两个分压器的预定分频，控制信号的瞬时值彼此之间的比率是预先确定的， 电压分压器和由参考电流源提供的电流的比率彼此相互调节，使得表现出对控制信号的至少一个较高功率的依赖性的输出信号分量抵消。 该电路装置还提供了改进的噪声因子。

公开(公告)号：US07528679B2

公开(公告)日：2009-05-05

申请号：US10508456

申请日：2003-03-24

申请人： Burkhard Dick

发明人： Burkhard Dick

IPC分类号： H03H7/46

CPC分类号： H03H7/21

摘要： Circuit arrangement for shifting the phase of an input signal, which circuit arrangement consists of two branches whose two output signals are 90° phase-shifted, and use of this phase shifter in a circuit arrangement for suppressing the mirror frequency. The filter systems in the two branches of the phase shifter are implemented in such a way that the phase difference between these two branches is 90°, independent of the frequency of the input signal. In the mirror frequency circuit, a frequency band is amplified or blanked during transmission. The base frequency BF constitutes the center of the frequency band. The amplitude difference is small in the solutions according to the invention. The amplitude difference is improved when the two 90° phase-shifted signals are matched or substantially equalized as regards their amplitude. The matching is performed in that the two signals are rectified and subsequently subtracted from each other. The result is supplied to an integrator whose output signal, together with a reference signal, constitutes the control value. This results in a substantially ideal suppression of the mirror frequency. The circuit arrangement can be used in a radio or television receiver.

摘要翻译： 用于移位输入信号的相位的电路装置，该电路装置由两个输出信号相差90°的两个分支组成，以及用于抑制反射镜频率的电路装置中的该移相器的使用。 移相器的两个分支中的滤波器系统以这样的方式实现，即这两个分支之间的相位差为90°，与输入信号的频率无关。 在镜像频率电路中，在传输期间，频带被放大或消隐。 基频BF构成频带的中心。 在根据本发明的解决方案中振幅差小。 当两个90°相移信号相对于它们的幅度匹配或基本相等时，振幅差异得到改善。 执行匹配是因为两个信号被纠正并且随后相互减去。 结果被提供给积分器，其输出信号与参考信号一起构成控制值。 这导致了镜像频率的基本理想的抑制。 该电路装置可用于无线电或电视接收机。

公开(公告)号：US06937871B2

公开(公告)日：2005-08-30

申请号：US10140500

申请日：2002-05-07

申请人： Burkhard Dick

发明人： Burkhard Dick

IPC分类号： H03D3/06 ,  H04B1/10 ,  H04B15/00 ,  H04B7/005 ,  H04B7/01 ,  H04B7/015

CPC分类号： H03D3/06

摘要： The invention relates to an anti-demodulator circuit which is fundamentally built up in the same way as a demodulator circuit but, instead of a bandpass filter as generally used in a demodulator, comprises a notch filter which receives an input signal comprising a useful signal and an interference signal, and generates a filtered signal. The notch filter has a center frequency which approximately corresponds to the frequency of the input signal so as to suppress at least a part of the useful signal. The anti-demodulator circuit further comprises a mixer circuit which receives the filtered signal and a phase-shifted input signal and supplies a demodulated output signal which substantially corresponds to the interference signal.The invention can be particularly used in connection with a filtering device for suppressing interference signals based on adjacent channel disturbances in FM radios, in which the bandwidth of the filtering device is controlled in dependence upon the output signal of the anti-demodulator circuit.

摘要翻译： 本发明涉及一种反解调器电路，其基本上以与解调器电路相同的方式构成，但代替通常在解调器中使用的带通滤波器，包括陷波滤波器，其接收包括有用信号的输入信号和 干扰信号，并产生滤波信号。 陷波滤波器具有大约对应于输入信号的频率的中心频率，以便抑制有用信号的至少一部分。 反解调器电路还包括混合电路，其接收经滤波的信号和相移输入信号，并提供基本上对应于干扰信号的解调输出信号。 本发明可以特别用于根据FM无线电设备中的相邻信道干扰抑制干扰信号的滤波装置，其中根据反解调器电路的输出信号控制滤波装置的带宽。

公开(公告)号：US20050152083A1

公开(公告)日：2005-07-14

申请号：US10508456

申请日：2003-03-24

申请人： Burkhard Dick

发明人： Burkhard Dick

IPC分类号： H03H7/19 ,  H03D7/00 ,  H03H7/21 ,  H04B1/26 ,  H02H3/26

CPC分类号： H03H7/21

摘要： Circuit arrangement for shifting the phase of an input signal, which circuit arrangement consists of two branches whose two output signals are 90° phase-shifted, and use of this phase shifter in a circuit arrangement for suppressing the mirror frequency. The filter systems in the two branches of the phase shifter are implemented in such a way that the phase difference between these two branches is 90°, independent of the frequency of the input signal. In the mirror frequency circuit, a frequency band is amplified or blanked during transmission. The base frequency BF constitutes the center of the frequency band. The amplitude difference is small in the solutions according to the invention. The amplitude difference is improved when the two 90° phase-shifted signals are matched or substantially equalized as regards their amplitude. The matching is performed in that the two signals are rectified and subsequently subtracted from each other. The result is supplied to an integrator whose output signal, together with a reference signal, constitutes the control value. This results in a substantially ideal suppression of the mirror frequency. The circuit arrangement can be used in a radio or television receiver.

摘要翻译： 用于移位输入信号的相位的电路装置，该电路装置由两个输出信号为90°相移的两个分支组成，并且在电路装置中使用该移相器来抑制反射镜频率。 移相器的两个分支中的滤波器系统以这样的方式实现，即这两个分支之间的相位差为90°，与输入信号的频率无关。 在镜像频率电路中，在传输期间，频带被放大或消隐。 基频BF构成频带的中心。 在根据本发明的解决方案中振幅差小。 当两个90°相移信号相对于它们的幅度匹配或基本相等时，振幅差异得到改善。 执行匹配是因为两个信号被纠正并且随后相互减去。 结果被提供给积分器，其输出信号与参考信号一起构成控制值。 这导致了镜像频率的基本理想的抑制。 该电路装置可用于无线电或电视接收机。

公开(公告)号：US06300811B1

公开(公告)日：2001-10-09

申请号：US09517724

申请日：2000-03-02

申请人： Burkhard Dick

发明人： Burkhard Dick

IPC分类号： H03F345

CPC分类号： H03F3/45085 ,  H03F1/3211 ,  H03F2203/45366 ,  H03F2203/45392

摘要： A differential amplifier includes a first amplifier transistor whose base terminal is coupled to an emitter terminal of a first emitter-follower transistor, a second amplifier transistor whose base terminal is coupled to an emitter terminal of a second emitter-follower transistor, a first emitter impedance across which the emitter terminals of the first and second amplifier transistors are coupled to each other, while base terminals of the emitter-follower transistors can be supplied with a differential voltage for controlling the differential amplifier. In order to enable stable operation and also a characteristic curve that is linear over rather large dynamic ranges, such a differential amplifier according to the invention includes a power transfer circuit by which a first current is supplied to the emitter terminal of the first emitter-follower transistor in a voltage-decoupled manner, which first current has such a predefined proportion to a collector current in a collector terminal of the second amplifier transistor due to the configuration of the first emitter-follower transistor and of the second amplifier transistor that a base-emitter voltage occurring on the first emitter-follower transistor substantially corresponds to a base-emitter voltage occurring on the second amplifier transistor. The power transfer circuit similarly applies a second current to the emitter terminal of the second emitter-follower transistor in a voltage-decoupled manner.

摘要翻译： 差分放大器包括第一放大器晶体管，其基极端子耦合到第一发射极跟随晶体管的发射极端子，第二放大器晶体管，其基极端子耦合到第二发射极跟随器晶体管的发射极端子，第一发射极阻抗 其中第一和第二放大器晶体管的发射极端子彼此耦合，而发射极跟随器晶体管的基极可以被提供用于控制差分放大器的差分电压。 为了使稳定运行以及在相当大的动态范围内是线性的特性曲线，根据本发明的这种差分放大器包括功率传输电路，通过该功率传输电路向第一发射极跟随器的发射极端子提供第一电流 晶体管以电压去耦方式，由于第一发射极跟随器晶体管和第二放大器晶体管的配置，第一电流具有与第二放大器晶体管的集电极端子中的集电极电流的预定比例， 在第一发射极跟随器晶体管上发生的发射极电压基本上对应于在第二放大器晶体管上出现的基极 - 发射极电压。 功率传输电路类似地以电压去耦方式向第二发射极跟随器晶体管的发射极端子施加第二电流。