JP6481919B2 - Constant current constant voltage amplifier - Google Patents

Constant current constant voltage amplifier Download PDF

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JP6481919B2
JP6481919B2 JP2013225958A JP2013225958A JP6481919B2 JP 6481919 B2 JP6481919 B2 JP 6481919B2 JP 2013225958 A JP2013225958 A JP 2013225958A JP 2013225958 A JP2013225958 A JP 2013225958A JP 6481919 B2 JP6481919 B2 JP 6481919B2
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constant
amplifier
voltage
current
input signal
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JP2015080182A (en
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角田　行男
行男 角田
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角田　行男
行男 角田
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Description

考案の詳細な説明Detailed description of the invention

産業上利用分野Industrial use field

オーディオ 音楽関係 など分野Audio Music related fields

今までの定電流アンプは出力側に小抵抗を入れスピーカーに流れる電流による小抵抗に発生する電圧を負帰還としてアンプを構成していた、よって出力インピーダンスが大きくなってしまう。Conventional constant current amplifiers have been configured with a small resistance on the output side and negative feedback of the voltage generated in the small resistance due to the current flowing through the speaker, so the output impedance becomes large.

本考案が解決しようとする課題Problems to be solved by the present invention

定電圧アンプによる出力内部抵抗と同じの定電流アンプの考案、定電流アンプで出力インピーダンスの低いダンピングファクターの大きいアンプの作成。
又音楽による好みの音色を出すためのスピーカー駆動の選択、定電流アンプ、定電圧アンプ、その中間などを選べるアンプ。Devise a constant current amplifier that is the same as the output internal resistance of the constant voltage amplifier, and create an amplifier with a large damping factor with low output impedance.
Also, an amplifier that allows you to select a speaker drive, a constant-current amplifier, a constant-voltage amplifier, or an intermediate between them to produce your favorite timbre with music.

問題点を解決するための手段Means to solve the problem

今までの定電流アンプは出力側に小抵抗を入れスピーカーに流れる電流による小抵抗に発生する電圧を負帰還としてアンプを構成していた、よって出力インピーダンスが大きくなってしまう。
よって定電圧メインアンプの電力増幅部に供給する電力部に適当な抵抗を直列接続で挿入しその抵抗による電圧の発生を利用し電圧の変化分を入力信号と合成し、その信号をメインアンプの入力信号とする又合成割合をコントロール出来るようにし定電流アンプとも定電圧アンプともその中間とも音楽に逢わせ聴く人の好みで選べるようにする回路。Conventional constant current amplifiers have been configured with a small resistance on the output side and negative feedback of the voltage generated in the small resistance due to the current flowing through the speaker, so the output impedance becomes large.
Therefore, an appropriate resistor is inserted in series in the power unit supplied to the power amplifier unit of the constant voltage main amplifier, and the change in voltage is synthesized with the input signal using the voltage generated by the resistor. A circuit that makes it possible to control the composition ratio as an input signal so that both the constant current amplifier and constant voltage amplifier can be selected according to the preference of the listener listening to music.

作用Action

スピーカーのインピーダンスはスピーカーの共振周波数で又周波数が高くなるに従って大きくなる傾向にあります、定電圧アンプはスピーカーに加わる電圧がインピーダンスに関係なく入力に比例した電圧が加わるためスピーカーのインピーダンスの変化に追従した電流が流れない、このインピーダンスの変化に関係なく入力電圧に比例した電流を流す事が出来る様に成る。The impedance of the speaker tends to increase with the resonance frequency of the speaker and as the frequency increases. The constant voltage amplifier follows the change of the impedance of the speaker because the voltage applied to the speaker is proportional to the input regardless of the impedance. No current flows, and a current proportional to the input voltage can flow regardless of this impedance change.

請求工１
電力増幅（出力段）８の（＋、−）の電源部供給（１０）（１１）に小抵抗Ｒ１（１）（２）を接続し（＋）電源側は抵抗Ｒ１（１）から抵抗Ｒ３（３）と接続し（−）電源供給側も（＋）電源供給側と同じ様に抵抗Ｒ１（２）から抵抗Ｒ２（４）を接続し抵抗Ｒ２（３）と抵抗Ｒ２（４）接続し直流分をキャンセルし入力信号成分のみとする、その信号を加算回路（１６）の抵抗Ｒ３（５）を通し抵抗Ｒ４（６）と接続し中点より合成信号（１４）を作りそれお電圧増幅（７）の入力信号とする、定電流定電圧アンプ
請求工２
合成信号Ｖｉｎ（１４）を作る加算回路の抵抗Ｒ４（６）をボリュウム（１５）に取替え合成信号Ｖｉｎ（１４）の加算割合をコントロール出来る回路の、定電流定電圧アンプBiller 1
A small resistor R1 (1) (2) is connected to the power supply (10) (11) of (+,-) of the power amplification (output stage) 8 and the (+) power supply side is connected from the resistor R1 (1) to the resistor R3. Connected to (3), the (-) power supply side is connected to the resistors R1 (2) to R2 (4) in the same manner as the (+) power supply side, and the resistors R2 (3) and R2 (4) are connected. The DC component is canceled and only the input signal component is obtained. The signal is connected to the resistor R4 (6) through the resistor R3 (5) of the adder circuit (16), and the composite signal (14) is generated from the middle point to amplify the voltage. Constant current constant voltage amplifier claim 2 as input signal of (7)
A constant-current constant-voltage amplifier having a circuit that can control the addition ratio of the composite signal Vin (14) by replacing the resistor R4 (6) of the adder circuit for generating the composite signal Vin (14) with a volume (15).

考案の効果Effect of device

音楽の録音はメーカーのモニタースピーカーの特性によりそこの場所での最高の録音に作り上げるでしょう、モニタースピーカーと同じスピーカーで家でも聴ければ良いのですがなかなかそうわいきません、そこで電流帰還量を調整できるアンプがあればスピーカーのインピーダンス変化に追従して電流が流れるので音色の変化にも繋がり音楽の楽しみも増えます。The recording of the music will make up the best recording in that place due to the characteristics of the monitor speakers of the manufacturer, but you can listen at home with the same speakers as the monitor speakers, but it is not so easy, so the current feedback amount is If there is an amplifier that can be adjusted, the current will flow following the impedance change of the speaker, which will lead to changes in the timbre and increase the enjoyment of music.

電源供給部（１０）（１１）の（＋）（−）にそれぞに接続した抵抗（１）（２）と抵抗（３）（４）の接続による電流量の検出を行い負帰還としてアンプ入力信号の前で加算し合成信号を創りアンプ入力信号として動作させる回路図Amplifiers are used as negative feedback by detecting the amount of current by connecting resistors (1), (2) and resistors (3), (4) connected to (+) (-) of the power supply units (10), (11), respectively. A circuit diagram that creates a composite signal by adding it before the input signal and operates it as an amplifier input signal 電源供給部（１０）（１１）の（＋）（−）にそれぞに接続した抵抗（１）（２）と抵抗（３）（４）の接続による電流量の検出を行い負帰還としてアンプ入力信号の前でボリュウムにて加算量をコントロールし合成信号を創りアンプ入力信号として動作させる回路図Amplifiers are used as negative feedback by detecting the amount of current by connecting resistors (1), (2) and resistors (3), (4) connected to (+) (-) of the power supply units (10), (11), respectively. A circuit diagram that controls the amount of addition with volume before the input signal, creates a composite signal, and operates as an amplifier input signal

１ Ｒ１抵抗 ７ 電圧増幅Ａ １３ スピーカー
２ Ｒ１抵抗 ８ 出力段（電力増幅）Ｂ １４ 合成信号Ｖｉｎ
３ Ｒ２抵抗 ９ 負帰還 １５ ボリュウム
４ Ｒ２抵抗 １０ （＋）電源供給 １６ 加算回路
５ Ｒ３抵抗 １１ （−）電源供給
６ Ｒ４抵抗 １２ Ｖｉｎ（入力信号源）1 R1 resistance 7 Voltage amplification A 13 Speaker 2 R1 resistance 8 Output stage (power amplification) B 14 Composite signal Vin
3 R2 resistor 9 Negative feedback 15 Volume 4 R2 resistor 10 (+) Power supply 16 Adder circuit 5 R3 resistor 11 (-) Power supply 6 R4 resistor 12 Vin (input signal source)

Claims (2)

定電圧アンプの電力増幅部の電源供給部に抵抗を直列接続で入れ電力増幅部に供給される電流により電圧が発生しその電圧の変化分を入力信号と合成しその合成信号を定電圧アンプの入力信号とする定電流定電圧アンプA resistor is connected in series to the power supply section of the power amplifier section of the constant voltage amplifier, a voltage is generated by the current supplied to the power amplifier section, and the change in the voltage is combined with the input signal, and the combined signal is combined with the constant voltage amplifier. Constant current constant voltage amplifier as input signal 請求項１ の電流から電圧に変換した変化分と入力信号を加算合成しその加算割合をコントロールする回路A circuit for controlling the addition ratio by adding and synthesizing a change converted from current to voltage and an input signal according to claim 1
JP2013225958A 2013-10-14 2013-10-14 Constant current constant voltage amplifier Active JP6481919B2 (en)

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JP6481919B2 true JP6481919B2 (en) 2019-03-13

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5248452B1 (en) * 1968-02-20 1977-12-09
JPS5921109A (en) * 1982-07-26 1984-02-03 Sony Corp Power amplifier having constant output characteristic
JPH07131272A (en) * 1993-10-29 1995-05-19 N F Kairo Sekkei Block:Kk Power amplifying device
JP3409994B2 (en) * 1997-06-20 2003-05-26 株式会社東芝 Self-extinguishing element drive circuit
US6665525B2 (en) * 2001-05-29 2003-12-16 Ericsson Inc. High-level modulation method and apparatus

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