JPS6031673U - Microcomputer frequency automatic discrimination circuit - Google Patents

Microcomputer frequency automatic discrimination circuit

Info

Publication number
JPS6031673U
JPS6031673U JP12394583U JP12394583U JPS6031673U JP S6031673 U JPS6031673 U JP S6031673U JP 12394583 U JP12394583 U JP 12394583U JP 12394583 U JP12394583 U JP 12394583U JP S6031673 U JPS6031673 U JP S6031673U
Authority
JP
Japan
Prior art keywords
microcomputer
circuit
automatic discrimination
frequency automatic
discrimination circuit
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
JP12394583U
Other languages
Japanese (ja)
Inventor
正己 中村
渡辺　光靖
泰 鈴木
Original Assignee
株式会社日立ホームテック
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 株式会社日立ホームテック filed Critical 株式会社日立ホームテック
Priority to JP12394583U priority Critical patent/JPS6031673U/en
Publication of JPS6031673U publication Critical patent/JPS6031673U/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Manipulation Of Pulses (AREA)
  • Power Sources (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 drawings]

第１図は従来のマイコンの周波数自動判別回路の周波数
自動判別タイミングチャート図、第２図は本考案による
同一実施回路図である。 Ｄ・・・・・・直流定電圧回路、Ｅ・・・・・・波形整
形回路、Ｆ・・・・・・リセット回路、Ｇ・・・・・・
スイッチ回路、１４　。 ・・・・・・マイコン、１５・・・・・・スイッチ。FIG. 1 is a frequency automatic discrimination timing chart of a conventional frequency automatic discrimination circuit of a microcomputer, and FIG. 2 is a circuit diagram of the same implementation according to the present invention. D: DC constant voltage circuit, E: Waveform shaping circuit, F: Reset circuit, G:
Switch circuit, 14. ...Microcomputer, 15...Switch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 時間、時刻を内部で処理すると共に、その基準時間を商
用電源の周期に同期したパルスを用い、さらに商用電源
の周波数を自動判別しうるマイコンの周波数自動判別回
路において、商用電源の周期に同期したパルスを発生さ
せる波形整形回路Ｅと、リセット回路Ｆと、スイッチ１
５から構成されるスイッチ回路Ｇと、マイコン１４から
成り、マイコン１４の入力として、前記波形整形回路Ｅ
出力、前記リセット回路Ｆ出力、前記スイッチ回路Ｇ出
力から成り、マイコン１４の電源の周波数の自動判別は
前記スイッチ１５のオン動作によるスイッチ回路Ｇ出力
信号により、動作させるようにしたことを特徴とするマ
イコンの周波数自動判別回路。In addition to processing time internally, the reference time is synchronized with the cycle of the commercial power supply using a pulse that is synchronized with the cycle of the commercial power supply. A waveform shaping circuit E that generates pulses, a reset circuit F, and a switch 1
5 and a microcomputer 14, the waveform shaping circuit E is used as an input to the microcomputer 14.
The microcomputer 14 is configured to automatically determine the frequency of the power source of the microcomputer 14 based on the output signal of the switch circuit G when the switch 15 is turned on. Microcomputer frequency automatic discrimination circuit.
JP12394583U 1983-08-10 1983-08-10 Microcomputer frequency automatic discrimination circuit Pending JPS6031673U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12394583U JPS6031673U (en) 1983-08-10 1983-08-10 Microcomputer frequency automatic discrimination circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12394583U JPS6031673U (en) 1983-08-10 1983-08-10 Microcomputer frequency automatic discrimination circuit

Publications (1)

Publication Number Publication Date
JPS6031673U true JPS6031673U (en) 1985-03-04

Family

ID=30282732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12394583U Pending JPS6031673U (en) 1983-08-10 1983-08-10 Microcomputer frequency automatic discrimination circuit

Country Status (1)

Country Link
JP (1) JPS6031673U (en)

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