JPH0486320U - - Google Patents
Info
- Publication number
- JPH0486320U JPH0486320U JP12972290U JP12972290U JPH0486320U JP H0486320 U JPH0486320 U JP H0486320U JP 12972290 U JP12972290 U JP 12972290U JP 12972290 U JP12972290 U JP 12972290U JP H0486320 U JPH0486320 U JP H0486320U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- negative feedback
- main
- feedback circuit
- buffer
- 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
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 1
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案の一実施例のオーデイオ用ＢＴ
Ｌパワーアンプを示すブロツク図であり、第２図
は従来のオーデイオ用ＢＴＬパワーアンプのブロ
ツク図である。
１……信号源、２……バツフアアンプ、３ａ，
３ｂ……メインアンプ、４……合成アンプ、Ｒ１
……抵抗、Ｒ１，Ｒ２，Ｒ３，Ｒ４，ＲＡ……帰
還抵抗、Ｃ１，Ｃ２，Ｃ３……帰還コンデンサ。
Figure 1 shows an audio BT according to an embodiment of the present invention.
2 is a block diagram showing an L power amplifier, and FIG. 2 is a block diagram of a conventional audio BTL power amplifier. 1...Signal source, 2...Buffer amplifier, 3a,
3b...Main amplifier, 4...Synthesizing amplifier, R1
... Resistance, R 1 , R 2 , R 3 , R 4 , RA ... Feedback resistance, C 1 , C 2 , C 3 ... Feedback capacitor.
Claims (1)
、 バツフアアンプ２の正出力に接続されるメイン
アンプ３ａと、 バツフアアンプ２の負出力に接続されるメイン
アンプ３ｂと、 前記メインアンプ３ａの負帰還回路と、 前記メインアンプ３ｂの負帰還回路と、 前記メインアンプ３ａ，３ｂの出力を合成して
バツフアアンプへ負帰還をかける負帰還回路とを
具備するオーデイオ用ＢＴＬパワーアンプ。 (2) 信号源１に接続される入力抵抗Ｒｉと 入力抵抗Ｒｉに接続されるバツフアアンプ２と
、 バツフアアンプ２の正出力に接続されるメイン
アンプ３ａと、 前記バツフアアンプ２の負出力に接続されるメ
インアンプ３ｂと、 前記メインアンプ３ａの負帰還回路を構成して
いる抵抗Ｒ１，Ｒ２およびコンデンサＣ１と、 前記メインアンプ３ｂの負帰還回路を構成して
いる抵抗Ｒ３，Ｒ４およびコンデンサＣ２と、 前記バツフアアンプ２への負帰還回路を構成し
ている、ＢＴＬ接続されているメインアンプ３ａ
および３ｂの出力を合成する合成アンプ４と抵抗
ＲＡとコンデンサＣ３とを具備するオーデイオ用
ＢＴＬパワーアンプ。[Claims for Utility Model Registration] (1) A buffer amplifier 2 connected to the signal source 1, a main amplifier 3a connected to the positive output of the buffer amplifier 2, and a main amplifier 3b connected to the negative output of the buffer amplifier 2; An audio BTL power amplifier comprising a negative feedback circuit of the main amplifier 3a, a negative feedback circuit of the main amplifier 3b, and a negative feedback circuit that combines the outputs of the main amplifiers 3a and 3b and applies negative feedback to the buffer amplifier. . (2) an input resistor R i connected to the signal source 1; a buffer amplifier 2 connected to the input resistor R i ; a main amplifier 3a connected to the positive output of the buffer amplifier 2; and a main amplifier 3a connected to the negative output of the buffer amplifier 2. resistors R 1 , R 2 and capacitor C 1 forming a negative feedback circuit of the main amplifier 3a; and resistors R 3 , R 4 forming a negative feedback circuit of the main amplifier 3b. and a capacitor C2 , and a main amplifier 3a connected to the BTL and forming a negative feedback circuit to the buffer amplifier 2.
and 3b, a synthesis amplifier 4, a resistor RA, and a capacitor C3 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12972290U JPH0486320U (en) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12972290U JPH0486320U (en) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0486320U true JPH0486320U (en) | 1992-07-27 |
Family
ID=31877113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12972290U Pending JPH0486320U (en) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0486320U (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5627517A (en) * | 1979-08-15 | 1981-03-17 | Matsushita Electric Ind Co Ltd | Clamping circuit of amplifier |
| JPS5877310A (en) * | 1981-11-02 | 1983-05-10 | Pioneer Electronic Corp | Balanced transformerless amplifier |
| JPS61131906A (en) * | 1984-11-30 | 1986-06-19 | Nec Corp | Power amplifier |
| JPS6434007A (en) * | 1987-07-29 | 1989-02-03 | Clarion Co Ltd | Speaker driving circuit |
-
1990
- 1990-11-30 JP JP12972290U patent/JPH0486320U/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5627517A (en) * | 1979-08-15 | 1981-03-17 | Matsushita Electric Ind Co Ltd | Clamping circuit of amplifier |
| JPS5877310A (en) * | 1981-11-02 | 1983-05-10 | Pioneer Electronic Corp | Balanced transformerless amplifier |
| JPS61131906A (en) * | 1984-11-30 | 1986-06-19 | Nec Corp | Power amplifier |
| JPS6434007A (en) * | 1987-07-29 | 1989-02-03 | Clarion Co Ltd | Speaker driving circuit |
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