JPH0446730U - - Google Patents
Info
- Publication number
- JPH0446730U JPH0446730U JP8832190U JP8832190U JPH0446730U JP H0446730 U JPH0446730 U JP H0446730U JP 8832190 U JP8832190 U JP 8832190U JP 8832190 U JP8832190 U JP 8832190U JP H0446730 U JPH0446730 U JP H0446730U
- Authority
- JP
- Japan
- Prior art keywords
- power
- voltage
- terminal
- potential
- detects
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Control Of Amplification And Gain Control (AREA)
- Noise Elimination (AREA)
Description
第１図は本考案の１実施例としてのミユート回
路を示す回路図、第２図は従来のミユート回路を
例示する回路図、第３図ａ，ｂはそれぞれエンジ
ンの始動時におけるバツテリ端子の電圧変化とア
クセサリ端子の電圧変化との関係を示すタイミン
グ図である。
符号の説明、１……パワーＩＣ、１ｔ……パワ
ーＩＣのスタンバイ端子、Ｂ，Ｕ……バツテリ端
子、ＡＣＣ……アクセサリ端子、ＺＤ……ツエナ
ーダイオード。
Fig. 1 is a circuit diagram showing a miute circuit as an embodiment of the present invention, Fig. 2 is a circuit diagram illustrating a conventional miute circuit, and Figs. 3 a and b show the voltage at the battery terminal when starting the engine. FIG. 4 is a timing diagram showing the relationship between the change and the voltage change of the accessory terminal. Explanation of symbols: 1...Power IC, 1t...Power IC standby terminal, B, U...Battery terminal, ACC...Accessory terminal, ZD...Zener diode.
Claims (1)
値以下になつたときパワーＩＣのスタンバイ端子
の電位をロウレベルとして該パワーＩＣをオフ状
態とすることを特徴とするミユート回路。 A mute circuit that detects a voltage at an accessory terminal and, when the voltage falls below a predetermined value, sets the potential at a standby terminal of a power IC to a low level to turn off the power IC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8832190U JPH0446730U (en) | 1990-08-27 | 1990-08-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8832190U JPH0446730U (en) | 1990-08-27 | 1990-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0446730U true JPH0446730U (en) | 1992-04-21 |
Family
ID=31821465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8832190U Pending JPH0446730U (en) | 1990-08-27 | 1990-08-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0446730U (en) |
-
1990
- 1990-08-27 JP JP8832190U patent/JPH0446730U/ja active Pending
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