JPS62112731U - - Google Patents

Info

Publication number
JPS62112731U
JPS62112731U JP20331485U JP20331485U JPS62112731U JP S62112731 U JPS62112731 U JP S62112731U JP 20331485 U JP20331485 U JP 20331485U JP 20331485 U JP20331485 U JP 20331485U JP S62112731 U JPS62112731 U JP S62112731U
Authority
JP
Japan
Prior art keywords
circuit
voltage
output
electronic 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
JP20331485U
Other languages
Japanese (ja)
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 JP20331485U priority Critical patent/JPS62112731U/ja
Publication of JPS62112731U publication Critical patent/JPS62112731U/ja
Pending legal-status Critical Current

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Description

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

図面はこの考案をロツカー用電子錠に適用した
場合の一実施例を示すブロツク図である。 The drawing is a block diagram showing an embodiment in which this invention is applied to an electronic locker lock.

Claims (1)

【実用新案登録請求の範囲】 (1) (イ) 電子回路に供給する電源の電圧を常
時監視し、電源電圧が当該電子回路の最小動作電
圧よりやや高く設定した基準電圧以下になつたこ
とを検出したときに出力する電圧監視回路と、 (ロ) 前記電子回路に入力するためのキーボー
ドの最初のキー操作があるたびにその入力を一時
記憶し、記憶している間、出力するラツチ回路と
、 (ハ) 前記電圧監視回路の出力と前記ラツチ回
路の出力を２入力とする論理積回路と、 (ニ) 前記論理積回路の出力に基いて作動され
る報知器と、 からなる電子回路の電源電圧低下報知装置。 (2) 報知器はキーボードのクリアキーの操作に
よる入力に基いて作動を停止されることを特徴と
する実用新案登録請求の範囲第１項に記載の電子
回路の電源電圧低下報知装置。[Scope of Claim for Utility Model Registration] (1) (a) The voltage of the power supply supplied to the electronic circuit is constantly monitored, and it is determined that the power supply voltage has fallen below a reference voltage set slightly higher than the minimum operating voltage of the electronic circuit. a voltage monitoring circuit that outputs an output when detected; (b) a latch circuit that temporarily stores the input every time there is a first key operation on the keyboard for inputting to the electronic circuit, and outputs the input while it is stored; (c) an AND circuit having two inputs: the output of the voltage monitoring circuit and the output of the latch circuit; and (d) an alarm activated based on the output of the AND circuit. Voltage drop alarm device. (2) The power supply voltage drop alarm device for an electronic circuit according to claim 1, wherein the alarm is deactivated based on an input by operating a clear key on a keyboard.
JP20331485U 1985-12-28 1985-12-28 Pending JPS62112731U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20331485U JPS62112731U (en) 1985-12-28 1985-12-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20331485U JPS62112731U (en) 1985-12-28 1985-12-28

Publications (1)

Publication Number Publication Date
JPS62112731U true JPS62112731U (en) 1987-07-17

Family

ID=31168525

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20331485U Pending JPS62112731U (en) 1985-12-28 1985-12-28

Country Status (1)

Country Link
JP (1) JPS62112731U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0462278A (en) * 1990-06-30 1992-02-27 Alpha Corp Electronic lock device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5710824A (en) * 1980-06-25 1982-01-20 Canon Inc Recording system electronic apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5710824A (en) * 1980-06-25 1982-01-20 Canon Inc Recording system electronic apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0462278A (en) * 1990-06-30 1992-02-27 Alpha Corp Electronic lock device

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