JPS60124128U - Amplifier - Google Patents

Amplifier

Info

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
Application number
JP911584U
Other languages
Japanese (ja)
Other versions
JPH0349464Y2 (en
Inventor
服部　貞美
野沢　光三
徳毛　昭夫
Original Assignee
パイオニア株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by パイオニア株式会社 filed Critical パイオニア株式会社
Priority to JP911584U priority Critical patent/JPS60124128U/en
Publication of JPS60124128U publication Critical patent/JPS60124128U/en
Application granted granted Critical
Publication of JPH0349464Y2 publication Critical patent/JPH0349464Y2/ja
Granted legal-status Critical Current

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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

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] ４チャンネル−２チャンネルＢＴＬ切替式ステレオ増幅
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.
JP911584U 1984-01-27 1984-01-27 Amplifier Granted JPS60124128U (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5742216A (en) * 1980-08-27 1982-03-09 Hitachi Ltd Btl connection system for output amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
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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