JPH06104671A - Amplifier - Google Patents
AmplifierInfo
- Publication number
- JPH06104671A JPH06104671A JP25100092A JP25100092A JPH06104671A JP H06104671 A JPH06104671 A JP H06104671A JP 25100092 A JP25100092 A JP 25100092A JP 25100092 A JP25100092 A JP 25100092A JP H06104671 A JPH06104671 A JP H06104671A
- Authority
- JP
- Japan
- Prior art keywords
- input terminal
- amplifier
- circuit
- inverting input
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、増幅器の最大出力信号
の度合いを制御する増幅装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an amplifier for controlling the degree of maximum output signal of an amplifier.
【０００２】[0002]
【従来の技術】近年、増幅装置は高付加価値化が望まれ
ており、そのひとつとして出力信号が無歪の増幅装置が
必要とされている。2. Description of the Related Art Recently, it has been desired to add value to an amplifying device, and as one of them, an amplifying device having an output signal without distortion is required.
【０００３】以下に従来の増幅装置について説明する。
図２は従来の増幅装置の構成図である。図２において、
２１は増幅器、２２は帰還回路、２３は非反転入力端
子、２４は反転入力端子、２５は出力端子である。A conventional amplifying device will be described below.
FIG. 2 is a block diagram of a conventional amplification device. In FIG.
Reference numeral 21 is an amplifier, 22 is a feedback circuit, 23 is a non-inverting input terminal, 24 is an inverting input terminal, and 25 is an output terminal.
【０００４】以上のように構成された増幅装置につい
て、以下その動作を説明する。非反転入力端子２３に印
加された入力信号は反転入力端子２４と出力端子２５の
間に接続された帰還回路２２の関数により増幅されて出
力端子２５に出力される。The operation of the amplifying device configured as described above will be described below. The input signal applied to the non-inverting input terminal 23 is amplified by the function of the feedback circuit 22 connected between the inverting input terminal 24 and the output terminal 25 and output to the output terminal 25.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記の
従来の構成では、非反転入力端子に十分に大きな入力信
号が印加され、増幅器の出力信号が増幅器の出力ダイナ
ミックレンジより大きくなった場合には出力信号がクリ
ップするという欠点を有していた。However, in the above-mentioned conventional configuration, when a sufficiently large input signal is applied to the non-inverting input terminal and the output signal of the amplifier becomes larger than the output dynamic range of the amplifier, the output is output. It had the drawback of clipping the signal.
【０００６】本発明は、上記従来の課題を解決するもの
で、出力信号がクリップしないように入力信号を制御で
きる増幅装置を提供することを目的とするものである。The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide an amplifier capable of controlling an input signal so that the output signal does not clip.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
に、本発明の増幅装置は、増幅器の非反転入力端子と反
転入力端子とを検波回路の入力端子に接続し、前記検波
回路の出力端子をミューティング回路の入力端子に接続
し、前記ミューティング回路の出力端子を前記増幅器の
非反転入力端子に接続する構成としたものである。In order to solve the above-mentioned problems, the amplifying device of the present invention is such that the non-inverting input terminal and the inverting input terminal of the amplifier are connected to the input terminal of the detection circuit, and the output of the detection circuit The terminal is connected to the input terminal of the muting circuit, and the output terminal of the muting circuit is connected to the non-inverting input terminal of the amplifier.
【０００８】[0008]
【作用】本発明は上記構成により、反転入力端子の信号
が出力信号がクリップした場合に非反転入力端子の信号
と一致しなくなることを検波回路により検出し、前記検
波回路の検出信号をミューティング回路に入力し、前記
ミューティング回路によって非反転入力端子の信号をミ
ューティングすることによって出力信号のクリップの度
合いを制御することを可能としたものである。According to the present invention having the above-described structure, the detection circuit detects that the signal at the inverting input terminal does not match the signal at the non-inverting input terminal when the output signal is clipped, and mutes the detection signal from the detection circuit. It is possible to control the degree of clipping of the output signal by inputting to the circuit and muting the signal of the non-inverting input terminal by the muting circuit.
【０００９】[0009]
【実施例】以下本発明の一実施例について図１を参照し
ながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.
【００１０】図１は本発明の一実施例における増幅装置
の構成図である。図１に示すように、増幅器１の反転入
力端子６と出力端子７の間に帰還回路２を接続し、前記
増幅器１の非反転入力端子５と反転入力端子６とを検波
回路３の入力端子に接続し、前記検波回路３の出力端子
をミューティング回路４の入力端子に接続し、前記ミュ
ーティング回路４の出力端子を前記増幅器１の非反転入
力端子５に接続した。FIG. 1 is a block diagram of an amplifying device according to an embodiment of the present invention. As shown in FIG. 1, the feedback circuit 2 is connected between the inverting input terminal 6 and the output terminal 7 of the amplifier 1, and the non-inverting input terminal 5 and the inverting input terminal 6 of the amplifier 1 are connected to the input terminal of the detection circuit 3. , The output terminal of the detection circuit 3 was connected to the input terminal of the muting circuit 4, and the output terminal of the muting circuit 4 was connected to the non-inverting input terminal 5 of the amplifier 1.
【００１１】以上のように構成された増幅装置につい
て、以下その動作を説明する。まず、非反転入力端子５
に印加された入力信号が小さい場合には、反転入力端子
６と出力端子７との間に接続された帰還回路２の関数に
より増幅されて出力端子７に出力される。このとき非反
転入力端子５と反転入力端子６に供給される入力信号は
同一の波形であり、検波回路３からは信号が検出されず
ミューティング回路４は動作しない。しかし、非反転入
力端子５に十分に大きな入力信号が印加され、増幅器１
の出力信号が増幅器１の出力ダイナミックレンジより大
きくなった場合には、出力信号がクリップして非反転入
力端子５と反転入力端子６に供給される信号は同一の波
形でなくなり、検波回路３から信号が検出されてミュー
ティング回路４が動作し、非反転入力端子５の入力信号
がミューティングされて増幅器１の出力信号のクリップ
の度合いを検波回路３により制御する。The operation of the amplifying apparatus constructed as above will be described below. First, the non-inverting input terminal 5
When the input signal applied to is small, it is amplified by the function of the feedback circuit 2 connected between the inverting input terminal 6 and the output terminal 7 and output to the output terminal 7. At this time, the input signals supplied to the non-inverting input terminal 5 and the inverting input terminal 6 have the same waveform, and no signal is detected from the detection circuit 3 and the muting circuit 4 does not operate. However, when a sufficiently large input signal is applied to the non-inverting input terminal 5, the amplifier 1
When the output signal of 1 becomes larger than the output dynamic range of the amplifier 1, the output signal is clipped and the signals supplied to the non-inverting input terminal 5 and the inverting input terminal 6 do not have the same waveform, and the detection circuit 3 The signal is detected, the muting circuit 4 operates, the input signal of the non-inverting input terminal 5 is muted, and the detection circuit 3 controls the degree of clipping of the output signal of the amplifier 1.
【００１２】[0012]
【発明の効果】以上のように本発明では、増幅回路の非
反転入力端子と反転入力端子とを検波回路の入力端子に
接続し、前記検波回路の出力端子をミューティング回路
の入力端子に接続し、前記ミューティング回路の出力端
子を前記増幅器の非反転入力端子に接続することによ
り、増幅器の出力信号のクリップの度合いを検波回路に
より制御する増幅装置を実現できるものである。As described above, in the present invention, the non-inverting input terminal and the inverting input terminal of the amplifier circuit are connected to the input terminal of the detection circuit, and the output terminal of the detection circuit is connected to the input terminal of the muting circuit. However, by connecting the output terminal of the muting circuit to the non-inverting input terminal of the amplifier, it is possible to realize an amplification device in which the degree of clipping of the output signal of the amplifier is controlled by the detection circuit.
【図１】本発明の一実施例における増幅装置の構成図FIG. 1 is a configuration diagram of an amplification device according to an embodiment of the present invention.
【図２】従来の増幅装置の構成図FIG. 2 is a configuration diagram of a conventional amplification device.
１ 増幅器 ２ 帰還回路 ３ 検波回路 ４ ミューティング回路 ５ 非反転入力端子 ６ 反転入力端子 ７ 出力端子 1 Amplifier 2 Feedback circuit 3 Detection circuit 4 Muting circuit 5 Non-inverting input terminal 6 Inversion input terminal 7 Output terminal
Claims (1)
され、前記増幅器の反転入力端子と出力端子との間に帰
還回路が接続され、前記増幅器の非反転入力端子と反転
入力端子とが検波回路の入力端子に接続され、前記検波
回路の出力端子がミューティング回路の入力端子に接続
され、前記ミューティング回路の出力端子が前記増幅装
置の非反転入力端子に接続された増幅装置。1. An input signal is connected to a non-inverting input terminal of an amplifier, a feedback circuit is connected between an inverting input terminal and an output terminal of the amplifier, and a non-inverting input terminal and an inverting input terminal of the amplifier are connected. An amplifying device connected to an input terminal of a detecting circuit, an output terminal of the detecting circuit being connected to an input terminal of a muting circuit, and an output terminal of the muting circuit being connected to a non-inverting input terminal of the amplifying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25100092A JPH06104671A (en) | 1992-09-21 | 1992-09-21 | Amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25100092A JPH06104671A (en) | 1992-09-21 | 1992-09-21 | Amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06104671A true JPH06104671A (en) | 1994-04-15 |
Family
ID=17216161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25100092A Pending JPH06104671A (en) | 1992-09-21 | 1992-09-21 | Amplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06104671A (en) |
-
1992
- 1992-09-21 JP JP25100092A patent/JPH06104671A/en active Pending
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