公开(公告)号：US07633344B2

公开(公告)日：2009-12-15

申请号：US12183857

申请日：2008-07-31

申请人： Kouichiro Yamaguchi

发明人： Kouichiro Yamaguchi

IPC分类号： H03F1/38

CPC分类号： H03F1/26 ,  H03F1/14 ,  H03F1/22 ,  H03F1/347 ,  H03F3/19 ,  H03F3/45089 ,  H03F3/50 ,  H03F2200/117 ,  H03F2200/153 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/372 ,  H03F2200/451 ,  H03F2203/45516 ,  H03F2203/45528 ,  H03F2203/45621 ,  H03F2203/45722 ,  H03F2203/45731 ,  H03F2203/5009 ,  H03F2203/5021

摘要： In a double-loop negative feedback low noise amplifier having double negative feedback paths by a feedback transformer and a feedback resistor added to a cascode amplifier comprising transistors and a resistor, a phase compensation circuit comprising a capacitor and a resistor is added between the output terminal of the double-loop negative feedback low noise amplifier and the input terminal of the cascode amplifier, i.e., the input terminal of the input transistor, and a phase compensation circuit comprising a capacitor and a resistor is added to the upper-stage transistor of the cascode amplifier, i.e., the input terminal of the upper-stage transistor. Those phase compensation circuits enable a low noise negative feedback amplifier which maintains a high feedback loop gain to a high frequency band, has a wider bandwidth than a conventional one, and has a high dynamic range.

摘要翻译： 在具有反馈变压器的双负反馈路径的双回路负反馈低噪声放大器和加到包括晶体管和电阻器的共源共栅放大器的反馈电阻器中，包括电容器和电阻器的相位补偿电路被添加在输出端子 的双回路负反馈低噪声放大器和共源共栅放大器的输入端，即输入晶体管的输入端，以及包括电容器和电阻的相位补偿电路被添加到 级联放大器，即上级晶体管的输入端。 这些相位补偿电路使得能够将高反馈环路增益保持在高频带的低噪声负反馈放大器具有比常规带宽更宽的带宽，并且具有高动态范围。

公开(公告)号：US07843272B2

公开(公告)日：2010-11-30

申请号：US12533113

申请日：2009-07-31

申请人： Kouichiro Yamaguchi

发明人： Kouichiro Yamaguchi

IPC分类号： H03F3/04

CPC分类号： H03F1/347 ,  H03F1/22 ,  H03F1/26 ,  H03F1/565 ,  H03F3/19 ,  H03F3/4508 ,  H03F3/50 ,  H03F2200/06 ,  H03F2200/09 ,  H03F2200/117 ,  H03F2200/153 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/372 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/5009

摘要： A low noise amplifier having a wide operating frequency band and a high dynamic range is provided. A transformer having a secondary winding connected between an input terminal to which an input signal is applied and a positive differential output terminal, and a primary winding connected between a negative differential output terminal and an input node is provided as a feedback circuit between a cascode amplifier circuit, which includes transistors and a resistor, and an output circuit, which includes a transistor and a constant current source. Selective use of a transformer whose leakage inductance has an adequate value as the feedback transformer can realize a low noise amplifier which has a wide operating frequency band and a high dynamic range.

摘要翻译： 提供具有宽工作频带和高动态范围的低噪声放大器。 具有连接在施加输入信号的输入端子与正差分输出端子之间的次级绕组的变压器和连接在负差分输出端子和输入节点之间的初级绕组被提供为共源共栅放大器之间的反馈电路 电路，其包括晶体管和电阻器，以及包括晶体管和恒流源的输出电路。 漏电感值为反馈变压器的变压器的选择性使用可以实现具有宽工作频带和高动态范围的低噪声放大器。

公开(公告)号：US08027594B2

公开(公告)日：2011-09-27

申请号：US11664039

申请日：2005-09-27

申请人： Shinji Yano

发明人： Shinji Yano

IPC分类号： H04B10/06

CPC分类号： H03F3/211 ,  H03F3/08 ,  H03F3/087 ,  H03F3/45085 ,  H03F3/45475 ,  H03F3/50 ,  H03F2200/474 ,  H03F2203/21115 ,  H03F2203/21157 ,  H03F2203/5009 ,  H03F2203/5036

摘要： A photodiode receives an infrared signal transmitted from a transmitter. A current distributing unit outputs a detection current Id output from the photodiode as a first detection current Id1 and a second detection current Id2 to a subsequent first current-to-voltage conversion amplifier and a subsequent second current-to-voltage conversion amplifier respectively. The first and second current-to-voltage conversion amplifiers convert the detection currents into voltages with current-to-voltage conversion gains g1 and g2. The current-to-voltage conversion gains g1 and g2 of the first and second current-to-voltage conversion amplifiers are set such that ranges of signal levels in which the distributed detection currents Id1 and Id2 can significantly be amplified differ from each other.

摘要翻译： 光电二极管接收从发射机发射的红外信号。 电流分配单元将从光电二极管输出的检测电流Id作为第一检测电流Id1和第二检测电流Id2分别输出到后续的第一电流 - 电压转换放大器和随后的第二电流 - 电压转换放大器。 第一和第二电流 - 电压转换放大器将检测电流转换成具有电流 - 电压转换增益g1和g2的电压。 将第一和第二电流 - 电压转换放大器的电流 - 电压转换增益g1和g2设置为使得分布式检测电流Id1和Id2可以显着放大的信号电平范围彼此不同。

公开(公告)号：US20100052784A1

公开(公告)日：2010-03-04

申请号：US12533113

申请日：2009-07-31

申请人： Kouichiro Yamaguchi

发明人： Kouichiro Yamaguchi

IPC分类号： H03F3/45

CPC分类号： H03F1/347 ,  H03F1/22 ,  H03F1/26 ,  H03F1/565 ,  H03F3/19 ,  H03F3/4508 ,  H03F3/50 ,  H03F2200/06 ,  H03F2200/09 ,  H03F2200/117 ,  H03F2200/153 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/372 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/5009

摘要： A low noise amplifier having a wide operating frequency band and a high dynamic range is provided. A transformer having a secondary winding connected between an input terminal to which an input signal is applied and a positive differential output terminal, and a primary winding connected between a negative differential output terminal and an input node is provided as a feedback circuit between a cascode amplifier circuit, which includes transistors and a resistor, and an output circuit, which includes a transistor and a constant current source. Selective use of a transformer whose leakage inductance has an adequate value as the feedback transformer can realize a low noise amplifier which has a wide operating frequency band and a high dynamic range.

摘要翻译： 提供具有宽工作频带和高动态范围的低噪声放大器。 具有连接在施加输入信号的输入端子与正差分输出端子之间的次级绕组的变压器和连接在负差分输出端子和输入节点之间的初级绕组被提供为共源共栅放大器之间的反馈电路 电路，其包括晶体管和电阻器，以及包括晶体管和恒流源的输出电路。 漏电感值为反馈变压器的变压器的选择性使用可以实现具有宽工作频带和高动态范围的低噪声放大器。

公开(公告)号：US20090108937A1

公开(公告)日：2009-04-30

申请号：US12183857

申请日：2008-07-31

申请人： Kouichiro Yamaguchi

发明人： Kouichiro Yamaguchi

IPC分类号： H03F3/45

CPC分类号： H03F1/26 ,  H03F1/14 ,  H03F1/22 ,  H03F1/347 ,  H03F3/19 ,  H03F3/45089 ,  H03F3/50 ,  H03F2200/117 ,  H03F2200/153 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/372 ,  H03F2200/451 ,  H03F2203/45516 ,  H03F2203/45528 ,  H03F2203/45621 ,  H03F2203/45722 ,  H03F2203/45731 ,  H03F2203/5009 ,  H03F2203/5021

摘要： In a double-loop negative feedback low noise amplifier having double negative feedback paths by a feedback transformer and a feedback resistor added to a cascode amplifier comprising transistors and a resistor, a phase compensation circuit comprising a capacitor and a resistor is added between the output terminal of the double-loop negative feedback low noise amplifier and the input terminal of the cascode amplifier, i.e., the input terminal of the input transistor, and a phase compensation circuit comprising a capacitor and a resistor is added to the upper-stage transistor of the cascode amplifier, i.e., the input terminal of the upper-stage transistor. Those phase compensation circuits enable a low noise negative feedback amplifier which maintains a high feedback loop gain to a high frequency band, has a wider bandwidth than a conventional one, and has a high dynamic range.

摘要翻译： 在具有反馈变压器的双负反馈路径的双回路负反馈低噪声放大器和加到包括晶体管和电阻器的共源共栅放大器的反馈电阻器中，包括电容器和电阻器的相位补偿电路被添加在输出端子 的双回路负反馈低噪声放大器和共源共栅放大器的输入端，即输入晶体管的输入端，以及包括电容器和电阻的相位补偿电路被添加到 级联放大器，即上级晶体管的输入端。 这些相位补偿电路使得能够将高反馈环路增益保持在高频带的低噪声负反馈放大器具有比常规带宽更宽的带宽，并且具有高动态范围。

公开(公告)号：US20080101802A1

公开(公告)日：2008-05-01

申请号：US11664039

申请日：2005-09-27

申请人： Shinji Yano

发明人： Shinji Yano

IPC分类号： H04B10/06

CPC分类号： H03F3/211 ,  H03F3/08 ,  H03F3/087 ,  H03F3/45085 ,  H03F3/45475 ,  H03F3/50 ,  H03F2200/474 ,  H03F2203/21115 ,  H03F2203/21157 ,  H03F2203/5009 ,  H03F2203/5036

摘要： A photodiode receives an infrared signal transmitted from a transmitter. A current distributing unit outputs a detection current Id output from the photodiode as a first detection current Id1 and a second detection current Id2 to a subsequent first current-to-voltage conversion amplifier and a subsequent second current-to-voltage conversion amplifier respectively. The first and second current-to-voltage conversion amplifiers convert the detection currents into voltages with current-to-voltage conversion gains g1 and g2. The current-to-voltage conversion gains g1 and g2 of the first and second current-to-voltage conversion amplifiers are set such that ranges of signal levels in which the distributed detection currents Id1 and Id2 can significantly be amplified differ from each other.

摘要翻译： 光电二极管接收从发射机发射的红外信号。 电流分配单元将从光电二极管输出的检测电流Id作为第一检测电流Id 1和第二检测电流Id2分别输出到后续的第一电流 - 电压转换放大器和随后的第二电流 - 电压转换放大器 。 第一和第二电流 - 电压转换放大器将检测电流转换成具有电流 - 电压转换增益g 1和g 2的电压。 将第一和第二电流 - 电压转换放大器的电流 - 电压转换增益g 1和g 2设置为使得分布式检测电流Id 1和Id 2可以显着放大的信号电平范围不同 彼此。

公开(公告)号：US5874858A

公开(公告)日：1999-02-23

申请号：US823695

申请日：1997-03-25

申请人： Misao Furuya

发明人： Misao Furuya

IPC分类号： H03F3/50 ,  H03F3/30

CPC分类号： H03F3/50 ,  H03F2203/5006 ,  H03F2203/5009 ,  H03F2203/5012 ,  H03F2203/5021 ,  H03F2203/5024 ,  H03F2203/5027

摘要： An amplifier system includes a constant current unit which produces a constant current in response to a source voltage from a source voltage terminal. An emitter follower unit has a base, an emitter and a collector, an input signal being supplied to the base, the emitter being connected to the constant current unit, the source voltage being supplied to the collector, the emitter follower unit producing an output signal at the emitter in response to the input signal. A current regulating unit regulates the constant current in response to a collector current fed into the collector of the emitter follower unit, so that the constant current is fed from the emitter of the emitter follower unit into the constant current unit.

摘要翻译： 放大器系统包括恒定电流单元，其响应于来自源极电压端子的源极电压产生恒定电流。 射极跟随器单元具有基极，发射极和集电极，输入信号被提供给基极，发射极连接到恒流单元，源电压被提供给集电极，射极跟随器单元产生输出信号 在发射器处响应于输入信号。 电流调节单元响应于馈送到射极跟随器单元的集电极的集电极电流来调节恒定电流，使得恒定电流从射极跟随器单元的发射极馈送到恒定电流单元。