JPS57111709A - Voltage dividing and dropping circuit - Google Patents

Voltage dividing and dropping circuit

Info

Publication number
JPS57111709A
JPS57111709A JP18685880A JP18685880A JPS57111709A JP S57111709 A JPS57111709 A JP S57111709A JP 18685880 A JP18685880 A JP 18685880A JP 18685880 A JP18685880 A JP 18685880A JP S57111709 A JPS57111709 A JP S57111709A
Authority
JP
Japan
Prior art keywords
circuit
groups
subcapacitor
parallel
voltage
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
JP18685880A
Other languages
Japanese (ja)
Inventor
Shingo Ichikawa
Fuminori Suzuki
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.)
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
Original Assignee
Citizen Holdings Co Ltd
Citizen Watch 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 Citizen Holdings Co Ltd, Citizen Watch Co Ltd filed Critical Citizen Holdings Co Ltd
Priority to JP18685880A priority Critical patent/JPS57111709A/en
Priority to US06/328,990 priority patent/US4451743A/en
Priority to GB8138453A priority patent/GB2090483B/en
Publication of JPS57111709A publication Critical patent/JPS57111709A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE:To extend the life of a small-sized electronic apparatus such as an electronic clock using a C-MOS and a small-sized battery, by adopting the capacitor voltage dividing system of high conversion efficiency for the voltage division ratio of a voltage dividing and dropping circuit. CONSTITUTION:A main capacitor 4 of a voltage dropping circuit 3 is connected in parallel to an electronic circuit 2, and n-number groups of subcapacitors 4a- 4n each of which consists of n-number capacitors are provided in the voltage dropping circuit 3. A changeover switch group is provided which switches the connection between the main capacitor 4 and subcapacitor groups 4a-4n and the connection between capacitors of subcapacitor groups 4a-4n. The main capacitor 4 is connected in parallel to the circuit 2, and subcapacitor groups 4a-4n are connected in series to this parallel circuit and are connected in parallel, and subcapacitor groups 4a-4n are charged by the battery 1. When the circuit where subcapacitor groups 4a-4n are connected in series is connected in parallel to the main capacitor 4, an optional voltage is supplied to the circuit 2.
JP18685880A 1980-12-29 1980-12-29 Voltage dividing and dropping circuit Pending JPS57111709A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP18685880A JPS57111709A (en) 1980-12-29 1980-12-29 Voltage dividing and dropping circuit
US06/328,990 US4451743A (en) 1980-12-29 1981-12-09 DC-to-DC Voltage converter
GB8138453A GB2090483B (en) 1980-12-29 1981-12-21 Dc-to-dc voltage converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18685880A JPS57111709A (en) 1980-12-29 1980-12-29 Voltage dividing and dropping circuit

Publications (1)

Publication Number Publication Date
JPS57111709A true JPS57111709A (en) 1982-07-12

Family

ID=16195880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18685880A Pending JPS57111709A (en) 1980-12-29 1980-12-29 Voltage dividing and dropping circuit

Country Status (1)

Country Link
JP (1) JPS57111709A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776085A (en) * 1985-11-08 1988-10-11 Honda Giken Kogyo Kabushiki Kaisha Apparatus for use in automobile assembling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776085A (en) * 1985-11-08 1988-10-11 Honda Giken Kogyo Kabushiki Kaisha Apparatus for use in automobile assembling

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