JPS6152816U - - Google Patents
Info
- Publication number
- JPS6152816U JPS6152816U JP13581584U JP13581584U JPS6152816U JP S6152816 U JPS6152816 U JP S6152816U JP 13581584 U JP13581584 U JP 13581584U JP 13581584 U JP13581584 U JP 13581584U JP S6152816 U JPS6152816 U JP S6152816U
- Authority
- JP
- Japan
- Prior art keywords
- power
- terminal
- power supply
- adjustment range
- gain
- 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 2
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図はそのパワーアンプ周辺の詳細回路図、第
３図は従来のオーデイオシステムの一例を示すブ
ロツク図、第４図はそのパワーアンプ周辺の詳細
回路図、第５図はバツフアアンプの詳細回路図で
ある。
図中、１はオーデイオ機器、２はパワーアンプ
、３はスピーカ、２１はパワーＩＣ、Ｒｆは帰還
端子への帰還抵抗、ＲＦは入力端子への帰還抵抗
、２２は電源変動除去フイルタ、Ｃ２はデカツプ
コンデンサである。
FIG. 1 is a block diagram showing an embodiment of the present invention.
Figure 2 is a detailed circuit diagram around the power amplifier, Figure 3 is a block diagram showing an example of a conventional audio system, Figure 4 is a detailed circuit diagram around the power amplifier, and Figure 5 is a detailed circuit diagram of the buffer amplifier. It is. In the figure, 1 is an audio device, 2 is a power amplifier, 3 is a speaker, 21 is a power IC, Rf is a feedback resistor to the feedback terminal, RF is a feedback resistor to the input terminal, 22 is a power supply fluctuation removal filter, and C2 is a It is a decoup capacitor.
Claims (1)
動する車載用のパワーアンプにおいて、増幅用の
回路を集積化したパワーＩＣと、該パワーＩＣの
帰還端子を用いてそのゲインを通常調整範囲内で
調整する帰還抵抗と、該パワーＩＣの出力端子か
ら入力端子にかけて負帰還系を構成し、そのゲイ
ンを該通常調整範囲を越えて低下させる帰還抵抗
と、該パワーＩＣの電源端子とバツテリ電源との
間に介在する電源変動除去フイルタとを備え、該
フイルタを小容量のデカツプコンデンサだけで構
成してなることを特徴とする車載用のパワーアン
プ。 In an automotive power amplifier that amplifies the output of audio equipment to drive a speaker, the gain is adjusted within the normal adjustment range using a power IC that integrates an amplification circuit and a feedback terminal of the power IC. A feedback resistor, which forms a negative feedback system from the output terminal to the input terminal of the power IC, and reduces the gain beyond the normal adjustment range, and between the power supply terminal of the power IC and the battery power supply. An in-vehicle power amplifier comprising an intervening power supply fluctuation removal filter, the filter being composed only of small-capacity decoupled capacitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13581584U JPS6152816U (en) | 1984-09-07 | 1984-09-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13581584U JPS6152816U (en) | 1984-09-07 | 1984-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6152816U true JPS6152816U (en) | 1986-04-09 |
Family
ID=30694300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13581584U Pending JPS6152816U (en) | 1984-09-07 | 1984-09-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6152816U (en) |
-
1984
- 1984-09-07 JP JP13581584U patent/JPS6152816U/ja active Pending
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