JPS6093320U - power amplifier circuit - Google Patents
power amplifier circuitInfo
- Publication number
- JPS6093320U JPS6093320U JP18541483U JP18541483U JPS6093320U JP S6093320 U JPS6093320 U JP S6093320U JP 18541483 U JP18541483 U JP 18541483U JP 18541483 U JP18541483 U JP 18541483U JP S6093320 U JPS6093320 U JP S6093320U
- Authority
- JP
- Japan
- Prior art keywords
- output terminal
- low frequency
- electroacoustic transducer
- frequency amplifier
- circuit
- 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
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
第１図は従来の電力増幅回路の一例の回路図、第２図は
電力増幅回路の出力信号の周波数特性を示す図、第３図
は本考案になる電力増幅回路の一実施例の回路図である
。
１・・・入力端子、２・・・可変抵抗器、３・・・差動
増幅器、４・・・抵抗器、５・・・ヘッドホンジャック
、６・・・固定端子（ヘッドホンジャック）、７・・・
スイッチ、８・・・帰還抵抗器、９・・・抵抗器、１ｏ
・・・コンデンサ、１１・・・抵抗器、１２・・・コン
デンサ、１３・・・帰還回路、１４・・・スピーカ、１
５・・・抵抗器、１６．１７・・・固定端子（ヘッドホ
ンジャック）。Figure 1 is a circuit diagram of an example of a conventional power amplifier circuit, Figure 2 is a diagram showing the frequency characteristics of the output signal of the power amplifier circuit, and Figure 3 is a circuit diagram of an embodiment of the power amplifier circuit of the present invention. It is. 1... Input terminal, 2... Variable resistor, 3... Differential amplifier, 4... Resistor, 5... Headphone jack, 6... Fixed terminal (headphone jack), 7...・・・
Switch, 8...Feedback resistor, 9...Resistor, 1o
...Capacitor, 11...Resistor, 12...Capacitor, 13...Feedback circuit, 14...Speaker, 1
5...Resistor, 16.17...Fixed terminal (headphone jack).
Claims (1)
性と異なる再生周波数特性を有する外部電気音響変換器
が接続される外部出力端子を備えた音響機器の一構成要
素であって、出力端子が前記電気音響変換器及び前記外
部出力端子に接続されている低周波増幅器と、前記低周
波増幅器の出力端子と入力端子との間に介挿され前記低
周波増幅器の出力信号の周波数特性を補正する帰還回路
と、前記低周波増幅器と前記帰還回路との間に介挿され
ている切換スイッチとからなり、前記電気音響変換器使
用時に前記低周波増幅器の出力端子と入力端子との間に
前記帰還回路が接続されるように前記スイッチを連動し
て選択切換すると共に、前記外部出力端子に前記外部電
気音響変換器が接続された際に前記低周波増幅器の出力
端子と入力端子との間に前記帰還回路が接続されないよ
うに前記スイッチを連動して選択切換するように構成し
た電力増幅回路。A component of an audio device comprising an electroacoustic transducer and an external output terminal to which an external electroacoustic transducer having a reproduction frequency characteristic different from that of the electroacoustic transducer is connected, the output terminal being connected to the A low frequency amplifier connected to the electroacoustic transducer and the external output terminal, and a feedback that is inserted between the output terminal and the input terminal of the low frequency amplifier to correct the frequency characteristics of the output signal of the low frequency amplifier. circuit, and a changeover switch inserted between the low frequency amplifier and the feedback circuit, and when the electroacoustic transducer is used, the feedback circuit is inserted between the output terminal and the input terminal of the low frequency amplifier. is connected, and when the external electroacoustic transducer is connected to the external output terminal, the feedback is connected between the output terminal and the input terminal of the low frequency amplifier. A power amplifier circuit configured to select and switch the switches in conjunction with each other so that the circuit is not connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18541483U JPS6093320U (en) | 1983-11-30 | 1983-11-30 | power amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18541483U JPS6093320U (en) | 1983-11-30 | 1983-11-30 | power amplifier circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6093320U true JPS6093320U (en) | 1985-06-26 |
Family
ID=30400759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18541483U Pending JPS6093320U (en) | 1983-11-30 | 1983-11-30 | power amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6093320U (en) |
-
1983
- 1983-11-30 JP JP18541483U patent/JPS6093320U/en active Pending
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