JPH0251152U - - Google Patents

Info

Publication number
JPH0251152U
JPH0251152U JP12969288U JP12969288U JPH0251152U JP H0251152 U JPH0251152 U JP H0251152U JP 12969288 U JP12969288 U JP 12969288U JP 12969288 U JP12969288 U JP 12969288U JP H0251152 U JPH0251152 U JP H0251152U
Authority
JP
Japan
Prior art keywords
power line
noise
electronic switch
differential amplifier
amount
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
JP12969288U
Other languages
Japanese (ja)
Other versions
JPH0622610Y2 (en
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 filed Critical
Priority to JP12969288U priority Critical patent/JPH0622610Y2/en
Publication of JPH0251152U publication Critical patent/JPH0251152U/ja
Application granted granted Critical
Publication of JPH0622610Y2 publication Critical patent/JPH0622610Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Electronic Switches (AREA)

Description

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

第１図は本考案による自動車用自動電子開閉器
の一実施例を示す構成図である。 １……電源入力端子、２……電源出力端子、３
……差動増幅器、４……帯域増幅器、５……周波
数―電圧変換器、６……可変抵抗器、７……電圧
比較器、８……電子開閉器、Ｒ１……自動車の電
源ラインピーダンス、Ｒ２……抵抗器。 FIG. 1 is a block diagram showing an embodiment of an automatic electronic switch for automobiles according to the present invention. 1...Power input terminal, 2...Power output terminal, 3
... Differential amplifier, 4 ... Bandwidth amplifier, 5 ... Frequency-voltage converter, 6 ... Variable resistor, 7 ... Voltage comparator, 8 ... Electronic switch, R1 ... Automobile power line pedance , R2...Resistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 自動車の電源ラインに垂畳しているオルタネー
タノイズの周波数からエンジンの回転数に対応す
る信号を形成し、この信号によつて接続機器を制
御する自動車用自動電子開閉器において、前記電
源ラインを、入力端子間に所定のインピーダンス
をもつ差動増幅器に接続しており、この差動増幅
器は、前記電源ライン側の前記オルタネータノイ
ズ以外のノイズ電圧を前記インピーダンスにより
ロス分だけ増幅し接続機器側ノイズ電圧より差し
引くように構成したことを特徴とする自動車用自
動電子開閉器。 In an automatic electronic switch for an automobile, which forms a signal corresponding to the engine rotation speed from the frequency of alternator noise that is applied to the power line of the car, and controls connected equipment using this signal, the power line is connected to the power line. It is connected to a differential amplifier having a predetermined impedance between the input terminals, and this differential amplifier amplifies the noise voltage other than the alternator noise on the power supply line side by the amount of loss using the impedance, and reduces the noise voltage on the connected equipment side. An automatic electronic switch for automobiles, characterized in that it is configured to reduce the amount of electricity.
JP12969288U 1988-10-03 1988-10-03 Automatic electronic switch for automobile Expired - Lifetime JPH0622610Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12969288U JPH0622610Y2 (en) 1988-10-03 1988-10-03 Automatic electronic switch for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12969288U JPH0622610Y2 (en) 1988-10-03 1988-10-03 Automatic electronic switch for automobile

Publications (2)

Publication Number Publication Date
JPH0251152U true JPH0251152U (en) 1990-04-10
JPH0622610Y2 JPH0622610Y2 (en) 1994-06-15

Family

ID=31384201

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12969288U Expired - Lifetime JPH0622610Y2 (en) 1988-10-03 1988-10-03 Automatic electronic switch for automobile

Country Status (1)

Country Link
JP (1) JPH0622610Y2 (en)

Also Published As

Publication number Publication date
JPH0622610Y2 (en) 1994-06-15

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