JPS5590868A - Voltage sensor for power source battery - Google Patents

Voltage sensor for power source battery

Info

Publication number
JPS5590868A
JPS5590868A JP16527778A JP16527778A JPS5590868A JP S5590868 A JPS5590868 A JP S5590868A JP 16527778 A JP16527778 A JP 16527778A JP 16527778 A JP16527778 A JP 16527778A JP S5590868 A JPS5590868 A JP S5590868A
Authority
JP
Japan
Prior art keywords
voltage
battery
power source
operational amplifier
light
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
JP16527778A
Other languages
Japanese (ja)
Inventor
Takashi Naito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16527778A priority Critical patent/JPS5590868A/en
Publication of JPS5590868A publication Critical patent/JPS5590868A/en
Pending legal-status Critical Current

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  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE: To easily and accurately judge the time of renewal of a battery, by adapting a light-emitting element to flash with an output from a multivibrator through an operational amplifier which receives as inputs a stabilized voltage and a voltage in proportion to the voltage of the battery.
CONSTITUTION: A voltage obtained by dividing a power source voltage E by resistors 6, 7 is input into one input terminal 5a of an operational amplifier 5, and a stable voltage set by a resistor 8 and a Zener diode 9 into the other input terminal 5b. An output terminal 5c of the operational amplifier 5 is connected through a resistor 10 to a transistor 16 in a multivibrator consisting of resistors 10W13, capacitors 14, 15, transistors 16, 17 and a light-emitting diode 18. In the above structure, the light-emitting diode 18 flashes or is turned off when the voltage of the power source battery E has dropped to a limit level, so that the correct time of renewal of the battery can be known.
COPYRIGHT: (C)1980,JPO&Japio
JP16527778A 1978-12-28 1978-12-28 Voltage sensor for power source battery Pending JPS5590868A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16527778A JPS5590868A (en) 1978-12-28 1978-12-28 Voltage sensor for power source battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16527778A JPS5590868A (en) 1978-12-28 1978-12-28 Voltage sensor for power source battery

Publications (1)

Publication Number Publication Date
JPS5590868A true JPS5590868A (en) 1980-07-09

Family

ID=15809265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16527778A Pending JPS5590868A (en) 1978-12-28 1978-12-28 Voltage sensor for power source battery

Country Status (1)

Country Link
JP (1) JPS5590868A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5719469U (en) * 1980-07-09 1982-02-01
JPS5842763U (en) * 1981-09-18 1983-03-22 テクトロニツクス・インコーポレイテツド voltage detector
JPS60127562U (en) * 1984-01-31 1985-08-27 明治ナシヨナル工業株式会社 Low battery voltage indicator
JPS60127563U (en) * 1984-01-31 1985-08-27 明治ナシヨナル工業株式会社 Low battery voltage indicator
JPS60129844U (en) * 1984-02-09 1985-08-31 ソニー株式会社 power supply voltage display device
JPS60139545U (en) * 1984-02-28 1985-09-14 矢崎総業株式会社 Load status detection display device
US4758772A (en) * 1986-07-09 1988-07-19 Braun Aktiengesellschaft Discharge indicating means for a storage battery
JPH0214192U (en) * 1988-07-13 1990-01-29

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5719469U (en) * 1980-07-09 1982-02-01
JPS5842763U (en) * 1981-09-18 1983-03-22 テクトロニツクス・インコーポレイテツド voltage detector
JPS60127562U (en) * 1984-01-31 1985-08-27 明治ナシヨナル工業株式会社 Low battery voltage indicator
JPS60127563U (en) * 1984-01-31 1985-08-27 明治ナシヨナル工業株式会社 Low battery voltage indicator
JPS60129844U (en) * 1984-02-09 1985-08-31 ソニー株式会社 power supply voltage display device
JPS60139545U (en) * 1984-02-28 1985-09-14 矢崎総業株式会社 Load status detection display device
US4758772A (en) * 1986-07-09 1988-07-19 Braun Aktiengesellschaft Discharge indicating means for a storage battery
JPH0214192U (en) * 1988-07-13 1990-01-29

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