JPH08250952A - Speaker device in acoustic reproducing system - Google Patents
Speaker device in acoustic reproducing systemInfo
- Publication number
- JPH08250952A JPH08250952A JP7051933A JP5193395A JPH08250952A JP H08250952 A JPH08250952 A JP H08250952A JP 7051933 A JP7051933 A JP 7051933A JP 5193395 A JP5193395 A JP 5193395A JP H08250952 A JPH08250952 A JP H08250952A
- Authority
- JP
- Japan
- Prior art keywords
- speaker
- winding
- output
- tap
- taps
- 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
- Circuit For Audible Band Transducer (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、音響再生システムにお
けるスピーカー装置の改善に係り、特に、ハイファイ音
響再生システムにおいて、多重出力信号を効果的に生成
してスピーカーに伝達する音響再生システムのスピーカ
ー装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a speaker device in a sound reproduction system, and more particularly to a speaker device of a sound reproduction system for effectively generating a multiple output signal and transmitting it to a speaker in a hi-fi sound reproduction system. Regarding
【０００２】[0002]
【従来技術とその課題】本件出願人が提案した特開平６
−２２４６５５号公報によると、図４に示すように、出
力増幅器の出力管から多重出力信号を導出した後、リー
ド線でリモートスピーカー装置に設けられた多重出力変
圧器の１次巻線の一端と音声出力増幅器の信号とを連結
するとともに、１次巻線の他端は接地することにより、
２次巻線にスピーカーを駆動させうる最終出力と信号と
を導出するようにしたところ、このような音響再生シス
テムはリード線によるエネルギーの損失や周波数の特性
変化がなく、また音声出力増幅器から高周波数および低
周波数の完全な分離が確保できるために、周波数間の明
らかな交叉特性が得られるだけでなく、全般的に効率が
向上し、出力増幅器の異常電圧や電流などによるスピー
カーの損失、例えばボイスコイルが消失されることがな
くなる。このように、音声出力増幅器の出力側から導出
された信号を多重出力変圧器の１次巻線の一端に連結
し、１次巻線の他の一端は接地して１次巻線との巻線比
の調整によってスピーカーを駆動させうる信号を２次巻
線に誘起させるものであるが、１次巻線および２次巻線
を有する多重出力変圧起は１次巻線の信号により、２次
巻線に信号が誘起される過程において周波数特性の完全
な移転が困難であるので、良い音質が確保できないだけ
でなく一定した誘起電圧の維持が難しく、且つ銅線が多
く必要なのでコスト上昇の要因となった。2. Description of the Related Art Japanese Unexamined Patent Application Publication No. H6-6 proposed by the applicant
According to Japanese Patent Publication No. 224655, as shown in FIG. 4, after deriving a multiple output signal from an output tube of an output amplifier, one end of a primary winding of a multiple output transformer provided in a remote speaker device is connected by a lead wire. By connecting the signal of the audio output amplifier and grounding the other end of the primary winding,
By deriving the final output and the signal that can drive the speaker to the secondary winding, such a sound reproduction system has no energy loss and frequency characteristic change due to the lead wire, and has a high output from the audio output amplifier. Since it is possible to ensure complete separation of frequency and low frequency, not only is there a clear crossover characteristic between frequencies, but overall efficiency is also improved, and speaker loss due to abnormal voltage or current in the output amplifier, such as The voice coil will never disappear. In this way, the signal derived from the output side of the audio output amplifier is connected to one end of the primary winding of the multiple output transformer, and the other end of the primary winding is grounded to form a winding with the primary winding. A signal capable of driving a speaker is induced in a secondary winding by adjusting a line ratio. However, a multiple output transformer having a primary winding and a secondary winding is a secondary output due to a signal of the primary winding. As it is difficult to completely transfer the frequency characteristics in the process of inducing a signal in the winding, it is difficult to maintain good sound quality and it is difficult to maintain a constant induced voltage. Became.
【０００３】本発明の目的は、単巻線変圧器にタップを
形成し、タップからの出力信号を高，低音スピーカーに
連結することにより、クロスオーバーネットワークの効
率を向上させることにある。It is an object of the present invention to improve the efficiency of a crossover network by forming a tap on a single winding transformer and coupling the output signal from the tap to a high and low frequency speaker.
【０００４】[0004]
【課題を解決するための手段】従来技術の課題を解決す
る本発明の構成は、音声出力増幅器の出力信号を少なく
とも２個の単巻線変圧器の一側端子に夫々接続するとと
もに、他の一側端子を夫々接地し、各単巻線途中でタッ
プを形成し、タップからの出力信号を高音スピーカー及
び低温スピーカーに連結したこと、および、前記各単巻
線に複数の選択使用可能なタップを形成し、前記高音ス
ピーカー及び低温スピーカーのインピーダンスに適合す
るよう調整しうるようにしたことを特徴とするものであ
る。The structure of the present invention which solves the problems of the prior art is such that the output signal of the audio output amplifier is connected to one terminal of at least two single winding transformers, respectively, and One side terminal is grounded, a tap is formed in the middle of each single winding, and the output signal from the tap is connected to a high-pitched speaker and a low-temperature speaker, and a plurality of taps that can be selectively used for each single winding. Is formed so that it can be adjusted to match the impedance of the high-pitched speaker and the low-temperature speaker.
【０００５】[0005]
【作用】本発明は、このような問題を改善するものであ
り、音声出力増幅器の出力側から高音および低音用の少
なくとも２個の出力を導出した後、これを夫々単巻線の
変圧器の一端に連結し、他の一側は接地してスピーカー
を駆動させ信号を得る音響再生システムのスピーカーシ
ステム（ＥＣＭＴ；Ｅｎｅｒｇｙ Ｃｏｎｔｒｏｌ Ｍ
ａｔｃｈｉｎｇ Ｔｒａｎｓ）である。音声出力増幅器
の出力側から導出された信号を多重出力トランスの代わ
りに単巻線変圧器の一側端子に入力し、他の一側は接地
して巻線の途中でタップを作ってタップからの出力信号
を高音スピーカーおよび低音スピーカーに連結すること
により、クロスオーバーネットワークの効率を向上させ
うる。The present invention solves such a problem by deriving at least two treble and bass outputs from the output side of the audio output amplifier, and then outputting them to a single winding transformer. A speaker system (ECMT; Energy Control M) of an audio reproduction system that is connected to one end and grounds the other side to drive a speaker to obtain a signal.
This is the "Transferring Trans". Input the signal derived from the output side of the audio output amplifier to one side terminal of the single winding transformer instead of the multiple output transformer, ground the other side and make a tap in the middle of the winding The crossover network efficiency can be improved by coupling the output signal of the H.sub.2 to the treble speaker and the bass speaker.
【０００６】[0006]
【実施例】次に、図面について本発明実施例の詳細を説
明する。図１は本発明第１実施例の音響再生システムの
回路図、図２は本発明第２実施例の音響再生システムの
回路図、図３は単巻線変圧器の変圧比グラフ、図４は従
来の音響再生システムの回路図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, details of embodiments of the present invention will be described with reference to the drawings. 1 is a circuit diagram of a sound reproducing system according to a first embodiment of the present invention, FIG. 2 is a circuit diagram of a sound reproducing system according to a second embodiment of the present invention, FIG. 3 is a transformation ratio graph of a single winding transformer, and FIG. It is a circuit diagram of the conventional sound reproduction system.
【０００７】以下、本発明を図１を中心に詳細に説明す
る。単巻線変圧器（Ａｕｔｏ−ｔｒａｎｓｆｏｒｍｅ
ｒ）を巻線の１つの途中でタップを作って使用するもの
で、変圧比が“１”の近くなので至極経済的で、特性も
良くなる。すなわち、２個の単巻線変圧器３ａ，３ｂで
は、該単巻線変圧器３ａ，３ｂの容量／２次側出力＝
（高電圧−低電圧）／高電圧＝１−（低電圧／高電圧）
という関係式が成り立つが（図３参照）、（高電圧／低
電圧）比、すなわちＶｈ／Ｖｌが１０以上では単巻線変
圧器３ａ，３ｂの容量はほぼ出力容量となって一定にな
り、またＶｈ／Ｖｌが５以下なら２次出力により容量が
急に減少することが分かるが、これは伝導伝達で出力が
伝達されるために、単巻線変圧器３，３ｂの容量は少な
くてもよいことを意味する。それで単巻線変圧器３ａ，
３ｂは、１次，２次の電圧比が１に近い時は非常に経済
的であり、また節線，銅損，％インピーダンス，電圧強
化，濾過電流が変圧器の容量に当たる値になるため、出
力に比べて効率，電圧変動率が非常に良好な特性があ
る。図１中の４ａ，４ｂは高音用，低音用のクロスオー
バーネットワークである。The present invention will be described below in detail with reference to FIG. Single-winding transformer (Auto-transform)
r) is used by making a tap in the middle of one of the windings, and since the transformation ratio is close to "1", it is extremely economical and has good characteristics. That is, in the two single winding transformers 3a and 3b, the capacity of the single winding transformers 3a and 3b / the secondary side output =
(High voltage-Low voltage) / High voltage = 1- (Low voltage / High voltage)
However, when the (high voltage / low voltage) ratio, that is, Vh / Vl is 10 or more, the capacities of the single-winding transformers 3a and 3b become almost equal to the output capacity and become constant. Also, it can be seen that when Vh / Vl is 5 or less, the capacity is suddenly reduced by the secondary output, but this is because the output is transferred by conduction transfer, so the capacity of the single winding transformers 3 and 3b is at least small. It means good. So the single winding transformer 3a,
3b is very economical when the primary-secondary voltage ratio is close to 1, and the node wire, copper loss,% impedance, voltage enhancement, and filtering current are values that correspond to the capacity of the transformer. It has characteristics that efficiency and voltage fluctuation rate are very good compared to output. Reference numerals 4a and 4b in FIG. 1 are crossover networks for high sounds and low sounds.
【０００８】本発明は単巻線の変圧器のこのような特性
を利用したものであり、音声出力増幅器１の出力側から
導出された信号を単巻線変圧器３ａ，３ｂの一側端子に
入力して、他の一側は接地し単巻線の途中でタップａ
１，ａ２を形成してタップａ１，ａ２からの出力信号を
高音スピーカー２ａおよび低音スピーカー２ｂに連結す
る。また、単巻線変圧器３ａ，３ｂの出力インピーダン
スをさらに向上させるためには、図２に示すように、出
力側の単巻線に２以上の選択使用可能なタップａ３，ａ
４及びａ５，ａ６を形成してこれらを選択的に使用する
ことによって、それによりスピーカー２ａ，２ｂのイン
ピーダンスに合うように調整することができる。図中４
ｃはタップａ３，ａ４によって変化する高音用のクロス
オーバーネットワーク，４ｂはタップａ５，ａ６によっ
て変わる低音用のクロスオーバーネットワークである。The present invention utilizes such a characteristic of the single-winding transformer, and a signal derived from the output side of the audio output amplifier 1 is applied to one terminal of the single-winding transformers 3a and 3b. Input, the other side is grounded and tap a in the middle of the single winding
1, a2 are formed and the output signals from the taps a1 and a2 are connected to the high-pitched speaker 2a and the low-pitched speaker 2b. Further, in order to further improve the output impedance of the single winding transformers 3a and 3b, as shown in FIG. 2, two or more taps a3 and a that can be selectively used for the single winding on the output side are used.
By forming 4 and a5 and a6 and using them selectively, it is possible to adjust them to match the impedance of the speakers 2a and 2b. 4 in the figure
Reference numeral c is a crossover network for treble sound that changes with taps a3 and a4, and 4b is a crossover network for bass sound that changes with taps a5 and a6.
【０００９】[0009]
【発明の効果】上述のように本発明の構成によれば、次
のような効果が得られる。 （ａ）電圧変動率は普通の変圧器よりさらに良くなり、
短絡電流はさらに大きくなって（Ｖ１−Ｖ２）／Ｖ１＝
１−（１／ａ）または１／（ａ−１）の式により、普通
の変圧器より約１１倍の電流が出力側に流れるため、周
波数間の明らかな交叉特性が得られる。 （ｂ）単巻線変圧器を用いることによって銅量を軽減し
てＶ１／Ｖ２の割合の銅が節約できるためにコストを減
らすことができ、容量に比例する銅損が減るために効率
がよくなり、温度上昇が低下し、且つ回路の冷却が容易
である。 （ｃ）変圧比が１の近くで負荷容量は等価容量に比べて
非常に大きくなるので、単巻線変圧器にする際には非常
に経済的で電圧変動率が良くなり、ネットワークの効率
が向上されるなどの長所がある。As described above, according to the structure of the present invention, the following effects can be obtained. (A) The voltage fluctuation rate is better than that of ordinary transformers,
The short-circuit current becomes larger (V1-V2) / V1 =
According to the formula of 1- (1 / a) or 1 / (a-1), about 11 times as much current as that of an ordinary transformer flows to the output side, so that a clear crossover characteristic between frequencies can be obtained. (B) By using a single-winding transformer, the amount of copper can be reduced and the copper of V1 / V2 can be saved, so the cost can be reduced, and the copper loss proportional to the capacity can be reduced, resulting in high efficiency. Therefore, the temperature rise is reduced, and the circuit can be easily cooled. (C) When the transformer ratio is close to 1, the load capacity becomes much larger than the equivalent capacity, so it is very economical when using a single winding transformer, the voltage fluctuation rate is good, and the network efficiency is high. There are advantages such as being improved.
【図１】本発明第１実施例の音響再生システムの回路図
である。FIG. 1 is a circuit diagram of a sound reproduction system according to a first embodiment of the present invention.
【図２】本発明第２実施例の音響再生システムの回路図
である。FIG. 2 is a circuit diagram of a sound reproduction system according to a second embodiment of the present invention.
【図３】単巻線変圧器の変圧比グラフである。FIG. 3 is a transformation ratio graph of a single-winding transformer.
【図４】従来の音響再生システムの回路図である。FIG. 4 is a circuit diagram of a conventional sound reproduction system.
１ 音声出力増幅器 ２ａ 高音スピーカー ２ｂ 低音スピーカー ３ａ 単巻線変圧器 ３ｂ 単巻線変圧器 ４ａ 高音用のクロスオーバーネットワーク ４ｂ 低音用のクロスオーバーネットワーク ４ｃ 高音用のクロスオーバーネットワーク ４ｄ 低音用のクロスオーバーネットワーク ａ１ タップ ａ２ タップ ａ３ タップ ａ４ タップ ａ５ タップ ａ６ タップ 1 Audio output amplifier 2a High-pitched speaker 2b Low-pitched speaker 3a Single-winding transformer 3b Single-winding transformer 4a Cross-over network for treble 4b Cross-over network for bass 4c Cross-over network for treble 4d Cross-over network for bass a1 tap a2 tap a3 tap a4 tap a5 tap a6 tap
Claims (2)
２個の単巻線変圧器の一側端子に夫々接続するととも
に、他の一側端子を夫々接地し、各単巻線途中でタップ
を形成し、タップからの出力信号を高音スピーカー及び
低音スピーカーに連結したことを特徴とする音響再生シ
ステムにおけるスピーカー装置。1. A tap is formed in the middle of each single winding by connecting an output signal of an audio output amplifier to one terminal of at least two single winding transformers and grounding the other one terminal respectively. A speaker device in a sound reproduction system, wherein the output signal from the tap is connected to a high-pitched speaker and a low-pitched speaker.
ップを形成し、前記高音スピーカー及び低温スピーカー
のインピーダンスに適合するよう調整しうるようにした
ことを特徴とする請求項１記載の音響再生システムにお
けるスピーカー装置。2. The plurality of selectively usable taps are formed on each of the single windings so that the taps can be adjusted to match the impedances of the high frequency speaker and the low temperature speaker. Speaker device in sound reproduction system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7051933A JPH08250952A (en) | 1995-02-16 | 1995-02-16 | Speaker device in acoustic reproducing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7051933A JPH08250952A (en) | 1995-02-16 | 1995-02-16 | Speaker device in acoustic reproducing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08250952A true JPH08250952A (en) | 1996-09-27 |
Family
ID=12900680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7051933A Pending JPH08250952A (en) | 1995-02-16 | 1995-02-16 | Speaker device in acoustic reproducing system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08250952A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5115356A (en) * | 1974-07-25 | 1976-02-06 | Yunikoodo Inc | Onseizofukukikairo |
| JPH0686383A (en) * | 1992-01-24 | 1994-03-25 | Man Ho Kim | Multiple output transformer network of acoustic playback system |
-
1995
- 1995-02-16 JP JP7051933A patent/JPH08250952A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5115356A (en) * | 1974-07-25 | 1976-02-06 | Yunikoodo Inc | Onseizofukukikairo |
| JPH0686383A (en) * | 1992-01-24 | 1994-03-25 | Man Ho Kim | Multiple output transformer network of acoustic playback system |
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