JPS5844646U - Dettman timer - Google Patents

Dettman timer

Info

Publication number
JPS5844646U
JPS5844646U JP13708381U JP13708381U JPS5844646U JP S5844646 U JPS5844646 U JP S5844646U JP 13708381 U JP13708381 U JP 13708381U JP 13708381 U JP13708381 U JP 13708381U JP S5844646 U JPS5844646 U JP S5844646U
Authority
JP
Japan
Prior art keywords
charging circuit
capacitor
timer
microcomputer
dettman
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
JP13708381U
Other languages
Japanese (ja)
Other versions
JPS6234356Y2 (en
Inventor
大江　秀美
Original Assignee
日本電気ホームエレクトロニクス株式会社
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 日本電気ホームエレクトロニクス株式会社 filed Critical 日本電気ホームエレクトロニクス株式会社
Priority to JP13708381U priority Critical patent/JPS5844646U/en
Publication of JPS5844646U publication Critical patent/JPS5844646U/en
Application granted granted Critical
Publication of JPS6234356Y2 publication Critical patent/JPS6234356Y2/ja
Granted legal-status Critical Current

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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図は本考案によるデツトマンタイマの一実施例を示
す回路図、第２図ａ、　　ｂは第１図に示す回路の各部
動作波形図である。 １・・・マイクロコンピュータ、２．　５．　６．　１
０゜１４．１５・・・抵抗、３．７・・・コンデンサ、
４．８・・・トランジスタ、９．１６・・・イン共−夕
、１１・・・比較器、１２．１３・・・ダイオード。FIG. 1 is a circuit diagram showing an embodiment of a dead man timer according to the present invention, and FIGS. 2a and 2b are operation waveform diagrams of various parts of the circuit shown in FIG. 1. 1...Microcomputer, 2. 5. 6. 1
0゜14.15...Resistance, 3.7...Capacitor,
4.8...Transistor, 9.16...In/out, 11...Comparator, 12.13...Diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電源とアース間に直列接続された抵抗とコンデンサによ
って構成される充電回路と、前記充電回路を構成するコ
ンデンサの両端間に並列接続され、カッマイクロコンピ
ュータからループ処理に対応して発生される周期信号に
よってオンとなって前記コンデンサの放電を行なうトラ
ンジスタと、前記充電回路の出力が上限値を越えた時に
マイクロコンピュータにリセット信号を供給する比較器
とを備えたデツトマンタイマ。A charging circuit consisting of a resistor and a capacitor connected in series between a power supply and ground, and a periodic signal that is connected in parallel between both ends of the capacitor constituting the charging circuit, and is generated by a microcomputer in response to loop processing. A deadman timer comprising: a transistor that is turned on to discharge the capacitor; and a comparator that supplies a reset signal to a microcomputer when the output of the charging circuit exceeds an upper limit value.
JP13708381U 1981-09-17 1981-09-17 Dettman timer Granted JPS5844646U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13708381U JPS5844646U (en) 1981-09-17 1981-09-17 Dettman timer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13708381U JPS5844646U (en) 1981-09-17 1981-09-17 Dettman timer

Publications (2)

Publication Number Publication Date
JPS5844646U true JPS5844646U (en) 1983-03-25
JPS6234356Y2 JPS6234356Y2 (en) 1987-09-02

Family

ID=29930377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13708381U Granted JPS5844646U (en) 1981-09-17 1981-09-17 Dettman timer

Country Status (1)

Country Link
JP (1) JPS5844646U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109955A (en) * 1982-11-29 1984-06-25 テクトロニツクス・インコーポレイテツド Automatic processor restarting circuit
JPS61164556U (en) * 1985-03-29 1986-10-13

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132414A (en) * 1974-09-13 1976-03-19 Nippon Steel Corp Crrmo keiteigokinko
JPS52119836A (en) * 1976-04-02 1977-10-07 Hitachi Ltd Calculator control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132414A (en) * 1974-09-13 1976-03-19 Nippon Steel Corp Crrmo keiteigokinko
JPS52119836A (en) * 1976-04-02 1977-10-07 Hitachi Ltd Calculator control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109955A (en) * 1982-11-29 1984-06-25 テクトロニツクス・インコーポレイテツド Automatic processor restarting circuit
JPS61164556U (en) * 1985-03-29 1986-10-13

Also Published As

Publication number Publication date
JPS6234356Y2 (en) 1987-09-02

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