JPS55143471A - Battery voltage detecting circuit - Google Patents

Battery voltage detecting circuit

Info

Publication number
JPS55143471A
JPS55143471A JP5145479A JP5145479A JPS55143471A JP S55143471 A JPS55143471 A JP S55143471A JP 5145479 A JP5145479 A JP 5145479A JP 5145479 A JP5145479 A JP 5145479A JP S55143471 A JPS55143471 A JP S55143471A
Authority
JP
Japan
Prior art keywords
circuit
battery voltage
voltage
voltage detecting
detecting 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
JP5145479A
Other languages
Japanese (ja)
Inventor
Masanari Kaizuka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5145479A priority Critical patent/JPS55143471A/en
Priority to DE19803016108 priority patent/DE3016108C2/en
Priority to GB8013958A priority patent/GB2051382B/en
Publication of JPS55143471A publication Critical patent/JPS55143471A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16504—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed
    • G01R19/16519—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed using FET's
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G04C10/04—Arrangements of electric power supplies in time pieces with means for indicating the condition of the power supply

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Tests Of Electric Status Of Batteries (AREA)

Abstract

PURPOSE: To make it possible to detect a battery voltage with simple constitution without using an adjustment resistance by the use of two series circuits including P-N junction element and a comparing circuit which receives respective circuit outputs.
CONSTITUTION: Battery voltage detecting circuit 6 has voltage comparing circuit 8 connected to both terminals VDD and VSS of battery 7. Between both terminals VDD and VSS, forward diode D1 and resistance R4 form series circuit 9, and forward diode D2 and resistance R5 form series circuit 10; and middle points 9a and 10a of series circuits 9 and 10 are led to voltage comparing circuit 8. Once the battery voltage gets abnormal, the output of voltage comparing circuit 8 is held at level "0".
COPYRIGHT: (C)1980,JPO&Japio
JP5145479A 1979-04-27 1979-04-27 Battery voltage detecting circuit Pending JPS55143471A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP5145479A JPS55143471A (en) 1979-04-27 1979-04-27 Battery voltage detecting circuit
DE19803016108 DE3016108C2 (en) 1979-04-27 1980-04-25 Voltage test circuit
GB8013958A GB2051382B (en) 1979-04-27 1980-04-28 Voltage detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5145479A JPS55143471A (en) 1979-04-27 1979-04-27 Battery voltage detecting circuit

Publications (1)

Publication Number Publication Date
JPS55143471A true JPS55143471A (en) 1980-11-08

Family

ID=12887371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5145479A Pending JPS55143471A (en) 1979-04-27 1979-04-27 Battery voltage detecting circuit

Country Status (3)

Country Link
JP (1) JPS55143471A (en)
DE (1) DE3016108C2 (en)
GB (1) GB2051382B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134471A (en) * 1984-07-26 1986-02-18 Matsushita Electric Ind Co Ltd Power source voltage detection circuit
JPH0288176U (en) * 1988-12-23 1990-07-12
US6154009A (en) * 1997-01-29 2000-11-28 Rohm Co., Ltd. Power supply monitoring IC and battery pack

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3313087A1 (en) * 1982-04-24 1983-11-03 Satchwell Birka Regelungstechnik Gmbh, 5630 Remscheid Electronic time-piece
GB2135845B (en) * 1983-03-16 1986-10-29 Robert Philp Supply-line controlled bistable switch construction
US5994755A (en) * 1991-10-30 1999-11-30 Intersil Corporation Analog-to-digital converter and method of fabrication
JPH07502868A (en) * 1991-10-30 1995-03-23 ハリス・コーポレーション Analog-digital switch and manufacturing method thereof
DE19827878A1 (en) 1998-06-23 1999-12-30 Dbb Fuel Cell Engines Gmbh Power supply circuit and power measuring circuit for a fuel cell interconnected system (FCIS)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50104332A (en) * 1974-01-28 1975-08-18
GB1475841A (en) * 1974-04-24 1977-06-10 Suwa Seikosha Kk Electronic timepiece

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134471A (en) * 1984-07-26 1986-02-18 Matsushita Electric Ind Co Ltd Power source voltage detection circuit
JPH0288176U (en) * 1988-12-23 1990-07-12
US6154009A (en) * 1997-01-29 2000-11-28 Rohm Co., Ltd. Power supply monitoring IC and battery pack

Also Published As

Publication number Publication date
DE3016108A1 (en) 1980-10-30
GB2051382B (en) 1983-03-16
GB2051382A (en) 1981-01-14
DE3016108C2 (en) 1982-11-04

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