JPS60124128U - Amplifier - Google Patents
AmplifierInfo
- Publication number
- JPS60124128U JPS60124128U JP911584U JP911584U JPS60124128U JP S60124128 U JPS60124128 U JP S60124128U JP 911584 U JP911584 U JP 911584U JP 911584 U JP911584 U JP 911584U JP S60124128 U JPS60124128 U JP S60124128U
- Authority
- JP
- Japan
- Prior art keywords
- inverting input
- circuit
- power
- input terminal
- power amplifier
- 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.)
- Granted
Links
Landscapes
- Amplifiers (AREA)
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４ｃｈ−２ＣｈＢＴＬ切替式ステレオ
−増幅装置のブロック図、第２図は本考案の一実施例
の構成を示す回路図、第３図は本考案の一実施例におけ
るＢＴＬ接続のときの接続図、第４図は本考案の他の実
施例を示す回路図である。
ＩＮ・・・・・・信号入力端子、ＶＲｌ・・・・・・可
変抵抗器、Ａ□およびＡ２・・・・・・電力増幅回路、
Ｓ、およびＳ２・・・・・・スイッチ、ＲＬｌ、ＲＬ２
およびＲＬ３・・・・・・負荷。Figure 1 shows the conventional 4ch-2ch BTL switching type stereo
- A block diagram of the amplifier device, Fig. 2 is a circuit diagram showing the configuration of an embodiment of the present invention, Fig. 3 is a connection diagram for BTL connection in an embodiment of the present invention, and Fig. 4 is a circuit diagram showing the configuration of an embodiment of the present invention. FIG. 7 is a circuit diagram showing another embodiment. IN...Signal input terminal, VRl...Variable resistor, A□ and A2...Power amplifier circuit,
S, and S2...Switch, RLl, RL2
and RL3...load.
Claims (1)
装置において、入力信号が抵抗体の両端に供給される可
変抵抗器と、前記入力信号がそれぞれ非反転入力端に供
給される第１および第２の電力増幅回路と、前記可変抵
抗器の摺動子と前記第２の電力増幅回路の非反転入力端
とを選択的にアースする第１の切替スイッチと、前記第
１の切替スイッチと連動して切替わり、前記摺動子がア
ースされたときは前記第２の電力増幅回路で非反転増幅
作用をせしめ、かつ前記第゛２の電力増幅回路の非反転
入力端がアースされたときは、前記第１の電力増幅回路
の出力電圧を前記第２の電力増幅回路の反転入力端に供
給する第２の切替スイッチとを備えてなることを特徴と
する増幅装置。A 4-channel to 2-channel BTL switching type stereo amplifier device includes: a variable resistor to which an input signal is supplied to both ends of a resistor; and first and second power amplifiers to which the input signal is supplied to non-inverting input terminals, respectively. a first selector switch that selectively grounds the circuit, a slider of the variable resistor, and a non-inverting input terminal of the second power amplifier circuit; , when the slider is grounded, the second power amplifier circuit performs a non-inverting amplification action, and when the non-inverting input terminal of the second power amplifier circuit is grounded, the first and a second changeover switch that supplies the output voltage of the power amplification circuit to the inverting input terminal of the second power amplification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP911584U JPS60124128U (en) | 1984-01-27 | 1984-01-27 | Amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP911584U JPS60124128U (en) | 1984-01-27 | 1984-01-27 | Amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60124128U true JPS60124128U (en) | 1985-08-21 |
| JPH0349464Y2 JPH0349464Y2 (en) | 1991-10-22 |
Family
ID=30489025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP911584U Granted JPS60124128U (en) | 1984-01-27 | 1984-01-27 | Amplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60124128U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5742216A (en) * | 1980-08-27 | 1982-03-09 | Hitachi Ltd | Btl connection system for output amplifier |
-
1984
- 1984-01-27 JP JP911584U patent/JPS60124128U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5742216A (en) * | 1980-08-27 | 1982-03-09 | Hitachi Ltd | Btl connection system for output amplifier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0349464Y2 (en) | 1991-10-22 |
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