JPS5882020U - feedback amplifier circuit - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の帰還−幅回路の一構成例を示す回路図、
第２図はこの考案の基本構成を示す回路′　図、第３図
は同基本構成の第１の信号線図、第４図は同基本構成の
第２の信号線図、第５図ないし第７図は同基本構成にお
ける各部の利得の周波数特性を示す特性図、第８図は同
基本構成に基づく具体回路を示す回路図である。 １・・・・・・信号入力端子、２・・・・・・増幅部、
２ａ・・・・・・電圧増幅段、２ｂ・・・・・・電流増
幅段、３・・・・・・帰還分割部、４・・・・・・信号
出力端子、５・・・・・・帰還増幅部、６・・・・・・
加算部。FIG. 1 is a circuit diagram showing an example of the configuration of a conventional feedback-width circuit.
Figure 2 is a circuit diagram showing the basic configuration of this invention, Figure 3 is a first signal line diagram of the same basic configuration, Figure 4 is a second signal line diagram of the same basic configuration, and Figures 5 to 5. FIG. 7 is a characteristic diagram showing the frequency characteristics of the gain of each part in the same basic configuration, and FIG. 8 is a circuit diagram showing a specific circuit based on the same basic configuration. 1...Signal input terminal, 2...Amplification section,
2a... Voltage amplification stage, 2b... Current amplification stage, 3... Feedback division section, 4... Signal output terminal, 5...・Feedback amplifier section, 6...
Addition section.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 増幅部と、この増幅部の出力を所定倍して出力する帰還
分割部と、信号入力端子に供給される入力信号と前記帰
還分割部の出力との差に対応する信号を出力する帰還増
幅部と、前記信号入力端子・　　に供給される入力信号
と前記帰還増幅部の出力とを加算しこの加算結果を前記
増幅部の入力端へ供−給する加算部とを具備し□てなり
、前記帰還増幅部−においてループ伝達関数が持つ位相
および利得の周波数特性を補償するようにしたことを特
徴とする帰還増幅回路。an amplifying section, a feedback dividing section that multiplies the output of the amplifying section by a predetermined value and outputs the result, and a feedback amplifying section that outputs a signal corresponding to the difference between the input signal supplied to the signal input terminal and the output of the feedback dividing section. and an adder that adds the input signal supplied to the signal input terminal and the output of the feedback amplifier and supplies the addition result to the input end of the amplifier, 1. A feedback amplifier circuit, characterized in that the frequency characteristics of the phase and gain of a loop transfer function are compensated for in the feedback amplifier section.