JPS5824837U - reset circuit - Google Patents

reset circuit

Info

Publication number
JPS5824837U
JPS5824837U JP11726981U JP11726981U JPS5824837U JP S5824837 U JPS5824837 U JP S5824837U JP 11726981 U JP11726981 U JP 11726981U JP 11726981 U JP11726981 U JP 11726981U JP S5824837 U JPS5824837 U JP S5824837U
Authority
JP
Japan
Prior art keywords
transistor
reset
time constant
circuit
power supply
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
JP11726981U
Other languages
Japanese (ja)
Inventor
正喜 加藤
Original Assignee
アルプス電気株式会社
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 アルプス電気株式会社 filed Critical アルプス電気株式会社
Priority to JP11726981U priority Critical patent/JPS5824837U/en
Publication of JPS5824837U publication Critical patent/JPS5824837U/en
Pending legal-status Critical Current

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  • Retry When Errors Occur (AREA)
  • Electronic Switches (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) [Summary] 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図は一般的なマイコン使用例を示すブロック図、第
２図は従来のリセット回路を示す回路図、第３図、第４
図は従来例の電源電圧、出力電圧のタイムチャート、第
５図は本考案の実施例を示す回路図、第６図、第７図は
実施例の電源電圧、出力電圧を示すタイムチャートであ
る。 ７．１１・・・端子、９．　１３．　１４．　１５・・
・抵抗、１０．１７・・・コンデンサ、１２・・・ツェ
ナダイオ−。 ド、１５．１８・・・トランジスタ。Figure 1 is a block diagram showing a typical microcomputer usage example, Figure 2 is a circuit diagram showing a conventional reset circuit, Figures 3 and 4.
The figure is a time chart of the power supply voltage and output voltage of the conventional example, Figure 5 is a circuit diagram showing the embodiment of the present invention, and Figures 6 and 7 are time charts showing the power supply voltage and output voltage of the embodiment. . 7.11...Terminal, 9. 13. 14. 15...
・Resistor, 10.17... Capacitor, 12... Zener diode. 15.18...Transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ツェナダイオード、トランジスタから成り、電源電圧の
変動を検出する検出回路、該検出回路の出力信号により
状態を変えるトランジスタと、該トランジスタの出力端
に設けられ、所定の時定数を有する時定数回路とを備え
、前記トランジスタの出力端がコンピュータのリセット
端子に接続され、電源電圧が瞬時の間所定の電圧以下に
なった時、前記時定数回路の定めた時間前記コンピュー
タをリセットすることを特徴とするリセット回路。A detection circuit consisting of a Zener diode and a transistor to detect fluctuations in power supply voltage, a transistor whose state changes depending on an output signal of the detection circuit, and a time constant circuit provided at the output end of the transistor and having a predetermined time constant. Reset, characterized in that the output terminal of the transistor is connected to a reset terminal of the computer, and when the power supply voltage drops below a predetermined voltage for an instant, the computer is reset for a period of time determined by the time constant circuit. circuit.
JP11726981U 1981-08-06 1981-08-06 reset circuit Pending JPS5824837U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11726981U JPS5824837U (en) 1981-08-06 1981-08-06 reset circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11726981U JPS5824837U (en) 1981-08-06 1981-08-06 reset circuit

Publications (1)

Publication Number Publication Date
JPS5824837U true JPS5824837U (en) 1983-02-17

Family

ID=29911456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11726981U Pending JPS5824837U (en) 1981-08-06 1981-08-06 reset circuit

Country Status (1)

Country Link
JP (1) JPS5824837U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5094461A (en) * 1973-12-21 1975-07-28
JPS51130153A (en) * 1975-05-07 1976-11-12 Tokyo Juki Ind Co Ltd Preset circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5094461A (en) * 1973-12-21 1975-07-28
JPS51130153A (en) * 1975-05-07 1976-11-12 Tokyo Juki Ind Co Ltd Preset circuit

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