JPS6092397U - alarm circuit - Google Patents

alarm circuit

Info

Publication number
JPS6092397U
JPS6092397U JP18005183U JP18005183U JPS6092397U JP S6092397 U JPS6092397 U JP S6092397U JP 18005183 U JP18005183 U JP 18005183U JP 18005183 U JP18005183 U JP 18005183U JP S6092397 U JPS6092397 U JP S6092397U
Authority
JP
Japan
Prior art keywords
alarm
alarm circuit
amplifier
signal
control signal
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
Application number
JP18005183U
Other languages
Japanese (ja)
Inventor
種市　喜夫
Original Assignee
日立電子株式会社
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 by 日立電子株式会社 filed Critical 日立電子株式会社
Priority to JP18005183U priority Critical patent/JPS6092397U/en
Publication of JPS6092397U publication Critical patent/JPS6092397U/en
Pending legal-status Critical Current

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  • Alarm Systems (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は従来例による警報回路、第２図は本考　　案の
実施例による警報回路を示す。 １．５：制御信号端子、２，６：増幅器、３：音響信号
端子、４，８：′スピーカ、７：警報信号端子、９．１
１：トランジスタ、１０：合成用抵抗。FIG. 1 shows an alarm circuit according to a conventional example, and FIG. 2 shows an alarm circuit according to an embodiment of the present invention. 1.5: Control signal terminal, 2, 6: Amplifier, 3: Sound signal terminal, 4, 8: 'Speaker, 7: Alarm signal terminal, 9.1
1: Transistor, 10: Resistor for synthesis.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 音響信号及び警報信号を増幅してスピーカに印加する増
幅器と、音響制御信号及び警報制御信号を論理計算する
第１、第２のトランジスタを有する論理回路と、この論
理回路の出力によって制御される前記増幅器の負帰還回
路に設けた第３のトランジスタとで構成したことを特徴
とする警報回an amplifier that amplifies the acoustic signal and the alarm signal and applies the amplified signals to the speaker; a logic circuit that includes first and second transistors that logically calculates the acoustic control signal and the alarm control signal; An alarm circuit characterized by comprising a third transistor provided in a negative feedback circuit of an amplifier.
JP18005183U 1983-11-24 1983-11-24 alarm circuit Pending JPS6092397U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18005183U JPS6092397U (en) 1983-11-24 1983-11-24 alarm circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18005183U JPS6092397U (en) 1983-11-24 1983-11-24 alarm circuit

Publications (1)

Publication Number Publication Date
JPS6092397U true JPS6092397U (en) 1985-06-24

Family

ID=30390496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18005183U Pending JPS6092397U (en) 1983-11-24 1983-11-24 alarm circuit

Country Status (1)

Country Link
JP (1) JPS6092397U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676895A (en) * 1979-11-26 1981-06-24 Nissan Motor Sound generator
JPS5786911A (en) * 1980-11-20 1982-05-31 Hitachi Ltd Method and device for controlling water level of feed water heater

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676895A (en) * 1979-11-26 1981-06-24 Nissan Motor Sound generator
JPS5786911A (en) * 1980-11-20 1982-05-31 Hitachi Ltd Method and device for controlling water level of feed water heater

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