JPS60129844U - power supply voltage display device - Google Patents

power supply voltage display device

Info

Publication number
JPS60129844U
JPS60129844U JP1704584U JP1704584U JPS60129844U JP S60129844 U JPS60129844 U JP S60129844U JP 1704584 U JP1704584 U JP 1704584U JP 1704584 U JP1704584 U JP 1704584U JP S60129844 U JPS60129844 U JP S60129844U
Authority
JP
Japan
Prior art keywords
power supply
supply voltage
display device
voltage display
multivibrator
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
JP1704584U
Other languages
Japanese (ja)
Inventor
研 土屋
Original Assignee
ソニー株式会社
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 ソニー株式会社 filed Critical ソニー株式会社
Priority to JP1704584U priority Critical patent/JPS60129844U/en
Publication of JPS60129844U publication Critical patent/JPS60129844U/en
Pending legal-status Critical Current

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  • Measurement Of Current Or Voltage (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図はバッテリー駆動型の電源装置に本考案を適用し
た一実施例を示す回路構成図である。 １・・・外部電源、２・・・外部バッテリー、２１，２
２・・・電源出力端子、３０・・・内蔵バッテリー、１
００・・・電源電圧表示装置、１０１・・・定電圧回路
、１０２．１０３，１０４・・・トランジスタ、１０５
゜１０６・・・コンデンサ、１０７，１０８，１１６゜
１１７．１１９・・・抵抗、１１３，１１４・・・ダイ
オード、１１５，１１８・・・可変抵抗、１１０，１１
２・・・発光ダイオード。FIG. 1 is a circuit configuration diagram showing an embodiment in which the present invention is applied to a battery-driven power supply device. 1... External power supply, 2... External battery, 21,2
2...Power output terminal, 30...Built-in battery, 1
00... Power supply voltage display device, 101... Constant voltage circuit, 102.103, 104... Transistor, 105
゜106...Capacitor, 107,108,116゜117.119...Resistor, 113,114...Diode, 115,118...Variable resistor, 110,11
2... Light emitting diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電源端子から定電圧回路を介して駆動電源が供給される
一対のトランジスタにて形成した非安定マルチバイブレ
ータと、上記電源端子に供給される駆動電源電圧が第１
の設定電圧以上であることを検出して上記非安定マルチ
バイブレータの発振動作を停止させる第１の検出回路と
、上記駆動電源電圧が第２の設定電圧以下であることを
検出して上記非安定マルチバイブレータの発振動作を停
止させる第２の検出回路と、上記非安定マルチバイブレ
ータの少なくとも一方のトランジスタにより駆動される
発光表示素子とから成る電源電圧表示装置。An unstable multivibrator formed by a pair of transistors to which driving power is supplied from a power terminal via a constant voltage circuit, and a first driving power supply voltage supplied to the power terminal.
a first detection circuit that detects that the drive power supply voltage is equal to or higher than a second set voltage and stops the oscillation operation of the unstable multivibrator; A power supply voltage display device comprising: a second detection circuit for stopping the oscillation operation of a multivibrator; and a light emitting display element driven by at least one transistor of the unstable multivibrator.
JP1704584U 1984-02-09 1984-02-09 power supply voltage display device Pending JPS60129844U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1704584U JPS60129844U (en) 1984-02-09 1984-02-09 power supply voltage display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1704584U JPS60129844U (en) 1984-02-09 1984-02-09 power supply voltage display device

Publications (1)

Publication Number Publication Date
JPS60129844U true JPS60129844U (en) 1985-08-31

Family

ID=30504385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1704584U Pending JPS60129844U (en) 1984-02-09 1984-02-09 power supply voltage display device

Country Status (1)

Country Link
JP (1) JPS60129844U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5590868A (en) * 1978-12-28 1980-07-09 Matsushita Electric Ind Co Ltd Voltage sensor for power source battery
JPS563467B2 (en) * 1976-11-05 1981-01-24

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS563467B2 (en) * 1976-11-05 1981-01-24
JPS5590868A (en) * 1978-12-28 1980-07-09 Matsushita Electric Ind Co Ltd Voltage sensor for power source battery

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