公开(公告)号：US07095281B2

公开(公告)日：2006-08-22

申请号：US10949432

申请日：2004-09-24

申请人： Josef Zipper ,  Werner Schelmbauer ,  Claus Stöger

发明人： Josef Zipper ,  Werner Schelmbauer ,  Claus Stöger

IPC分类号： H03F3/45

CPC分类号： H03G1/0029 ,  H03F3/45654 ,  H03F2200/372 ,  H03F2203/45302 ,  H03F2203/45311 ,  H03F2203/45316 ,  H03F2203/45318 ,  H03F2203/45371

摘要： Provision is made of a differential amplifier arrangement with a current source (S1), two controllable paths (T1, T2), which are in each case coupled by one terminal to the current source (S1) and the control terminals of which form the input of the differential amplifier arrangement. Via a respective cascode circuit (K1, K2), a load (L1, L2) is respectively connected to the first and second controllable paths (T1, T2). At least one tap (A1) between one of the loads and one of the cascode circuits forms an output of the differential amplifier arrangement. Provision is made of a comparison means (D1) having two inputs, which is designed for outputting a control signal dependent on a comparison. A first input is coupled to the first tap (A1) and the second input is designed for feeding a reference signal. Furthermore, the differential amplifier arrangement contains a regulable current source (G1), the control input of which is connected to the output of the comparison means and the current output of which is connected to the second terminal (P1) of at least the first controllable path (T1).

摘要翻译： 提供了一种具有电流源（S 1），两个可控路径（T 1，T 2）的差分放大器装置，每个可控路径（T 1，T 2）在每种情况下由一个端子耦合到电流源（S1），并且控制端子 其形成差分放大器装置的输入。 通过相应的共源共栅电路（K 1，K 2），负载（L 1，L 2）分别连接到第一和第二可控路径（T 1，T 2）。 一个负载和一个共源共栅电路之间的至少一个抽头（A 1）形成差分放大器装置的输出。 提供具有两个输入的比较装置（D 1），其被设计用于输出取决于比较的控制信号。 第一输入耦合到第一抽头（A 1），第二输入被设计用于馈送参考信号。 此外，差分放大器装置包含可调节电流源（G 1），其控制输入连接到比较装置的输出端，其电流输出端连接至第二端子（P 1）至少为 第一可控路径（T 1）。

公开(公告)号：US07397307B2

公开(公告)日：2008-07-08

申请号：US11240686

申请日：2005-09-30

申请人： Claus Stöger ,  Werner Schelmbauer

发明人： Claus Stöger ,  Werner Schelmbauer

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F1/34 ,  H03F2203/45366 ,  H03F2203/45702 ,  H03G1/0029 ,  H03G1/0088

摘要： According to one or more aspects of the present invention, an amplifier arrangement is disclosed. The arrangement comprises a first, a second and a third amplifier. The first and second amplifiers are coupled to one another such that they form a negative feedback loop. In addition, an output node of the first amplifier is connected to a signal input of the third amplifier. An output node of the third amplifier circuit forms the amplifier output of the amplifier arrangement. In addition, the third amplifier circuit is designed for switchably changing its gain on the basis of a signal at an actuating input of the amplifier arrangement.

摘要翻译： 根据本发明的一个或多个方面，公开了一种放大器装置。 该装置包括第一，第二和第三放大器。 第一和第二放大器彼此耦合，使得它们形成负反馈回路。 此外，第一放大器的输出节点连接到第三放大器的信号输入端。 第三放大器电路的输出节点形成放大器装置的放大器输出。 此外，第三放大器电路被设计为基于在放大器装置的致动输入处的信号来可变地改变其增益。

公开(公告)号：US07292099B2

公开(公告)日：2007-11-06

申请号：US11137237

申请日：2005-05-25

申请人： Claus Stöger ,  Harald Pretl

发明人： Claus Stöger ,  Harald Pretl

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F1/34 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45296 ,  H03F2203/45512 ,  H03F2203/45652 ,  H03F2203/45726

摘要： An amplifier arrangement is provided having a first differential amplifier stage and a second differential amplifier stage, which are connected to one another with negative feedback. The second differential amplifier stage has a first voltage divider that is connected to the controlled path of the second differential amplifier stage and has at least two signal taps. The second differential amplifier stage also has a second voltage divider with at least two signal taps. Furthermore, a switching device is provided, and is connected to the at least two signal taps of the first voltage divider and to the at least two signal taps of the second voltage divider. The switching device is used to connect one of the at least two signal taps of the first voltage divider to a first output tap of the amplifier arrangement, and one of the at least two signal taps of the second voltage divider to a second output tap of the amplifier arrangement. The overall input impedance can thus be adjusted in a suitable preferred manner.

摘要翻译： 提供了具有第一差分放大器级和第二差分放大器级的放大器装置，它们以负反馈彼此连接。 第二差分放大器级具有连接到第二差分放大器级的受控通路并具有至少两个信号抽头的第一分压器。 第二差分放大器级还具有至少两个信号抽头的第二分压器。 此外，提供开关装置，并且连接到第一分压器的至少两个信号抽头并连接到第二分压器的至少两个信号抽头。 开关装置用于将第一分压器的至少两个信号抽头中的一个连接到放大器装置的第一输出抽头，并且将第二分压器的至少两个信号抽头中的一个连接到第二输出抽头 放大器布置。 因此可以以合适的优选方式调整总输入阻抗。

公开(公告)号：US20050270099A1

公开(公告)日：2005-12-08

申请号：US11137237

申请日：2005-05-25

申请人： Claus Stöger ,  Harald Pretl

发明人： Claus Stöger ,  Harald Pretl

IPC分类号： H03F1/34 ,  H03F3/45 ,  H03F3/68 ,  H03F3/72

CPC分类号： H03F3/45183 ,  H03F1/34 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45296 ,  H03F2203/45512 ,  H03F2203/45652 ,  H03F2203/45726

摘要： An amplifier arrangement is provided having a first differential amplifier stage and a second differential amplifier stage, which are connected to one another with negative feedback. The second differential amplifier stage has a first voltage divider that is connected to the controlled path of the second differential amplifier stage and has at least two signal taps. The second differential amplifier stage also has a second voltage divider with at least two signal taps. Furthermore, a switching device is provided, and is connected to the at least two signal taps of the first voltage divider and to the at least two signal taps of the second voltage divider. The switching device is used to connect one of the at least two signal taps of the first voltage divider to a first output tap of the amplifier arrangement, and one of the at least two signal taps of the second voltage divider to a second output tap of the amplifier arrangement. The overall input impedance can thus be adjusted in a suitable preferred manner.

摘要翻译： 提供了具有第一差分放大器级和第二差分放大器级的放大器装置，它们以负反馈彼此连接。 第二差分放大器级具有连接到第二差分放大器级的受控通路并具有至少两个信号抽头的第一分压器。 第二差分放大器级还具有至少两个信号抽头的第二分压器。 此外，提供开关装置，并且连接到第一分压器的至少两个信号抽头并连接到第二分压器的至少两个信号抽头。 开关装置用于将第一分压器的至少两个信号抽头中的一个连接到放大器装置的第一输出抽头，并且将第二分压器的至少两个信号抽头中的一个连接到第二输出抽头 放大器布置。 因此可以以合适的优选方式调整总输入阻抗。