JPH0277921U - - Google Patents
Info
- Publication number
- JPH0277921U JPH0277921U JP15733188U JP15733188U JPH0277921U JP H0277921 U JPH0277921 U JP H0277921U JP 15733188 U JP15733188 U JP 15733188U JP 15733188 U JP15733188 U JP 15733188U JP H0277921 U JPH0277921 U JP H0277921U
- Authority
- JP
- Japan
- Prior art keywords
- input terminal
- amplifier
- capacitor
- output
- detection
- 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 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 1
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案の一実施例を示す図で第２図は
、ＢＴＬ出力の機器における動作説明図、第３図
はＯＴＬ出力の機器における動作説明図である。
１…インダツシユ・プレーヤー、２…出力段、
３…出力端子、４…増幅器、５…入力端子、６，
７…コンデンサ、８…ローパスフイルタ、９…検
知・制御回路、１０…抵抗である。
FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of the operation in a BTL output device, and FIG. 3 is an explanatory diagram of the operation in an OTL output device. 1...Induction player, 2...Output stage,
3...Output terminal, 4...Amplifier, 5...Input terminal, 6,
7... Capacitor, 8... Low pass filter, 9... Detection/control circuit, 10... Resistor.
Claims (1)
て車載用オーデイオ機器に外部接続される増幅器
に於いて、増幅器の入力端子にコンデンサを挿入
し、コンデンサ出力を抵抗で接地し入力端子に加
わる直流電位を検出するために設けるローパスフ
イルタとローパスフイルタの出力を検知・制御回
路に接続して入力端子に加わる直流電位を検知し
て電源をＯＮする事を特徴とする車載用増幅器。 In the amplifier that is externally connected to the in-vehicle audio equipment in accordance with the operation and non-operation of the in-vehicle audio equipment, a capacitor is inserted into the input terminal of the amplifier, and the output of the capacitor is grounded with a resistor to reduce the DC potential applied to the input terminal. An on-vehicle amplifier characterized in that a low-pass filter provided for detection and the output of the low-pass filter are connected to a detection/control circuit to detect a DC potential applied to an input terminal and turn on the power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15733188U JPH0277921U (en) | 1988-12-02 | 1988-12-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15733188U JPH0277921U (en) | 1988-12-02 | 1988-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0277921U true JPH0277921U (en) | 1990-06-14 |
Family
ID=31436675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15733188U Pending JPH0277921U (en) | 1988-12-02 | 1988-12-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0277921U (en) |
-
1988
- 1988-12-02 JP JP15733188U patent/JPH0277921U/ja active Pending
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