JPS57123420A - Voltage dividing and reducing circuit - Google Patents

Voltage dividing and reducing circuit

Info

Publication number
JPS57123420A
JPS57123420A JP918081A JP918081A JPS57123420A JP S57123420 A JPS57123420 A JP S57123420A JP 918081 A JP918081 A JP 918081A JP 918081 A JP918081 A JP 918081A JP S57123420 A JPS57123420 A JP S57123420A
Authority
JP
Japan
Prior art keywords
capacitor
parallel
capacitors
group
series
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
JP918081A
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 JP918081A priority Critical patent/JPS57123420A/en
Priority to US06/328,990 priority patent/US4451743A/en
Priority to GB8138453A priority patent/GB2090483B/en
Publication of JPS57123420A publication Critical patent/JPS57123420A/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 Electrical Variables (AREA)

Abstract

PURPOSE:To obtain the optional output voltage with use of the divided voltage of a capacitor having high conversion efficiency, by connecting with switching a main capacitor connected in parallel to a load and plural secondary capacitors with a specific method. CONSTITUTION:A main capacitor 4 is connected in parallel to an electronic circuit 2 which functions as a load, and plural sets of secondary capacitor group in which secondary capacitors 4a-4n are formed into a set is provided. The changeover switch group switches the connection between the capacitor 4 and the secondary capacitor group as well as the connection between the secondary capacitors that form the secondary capacitor group. The secondary capacitors are controlled by the changeover switch group so that they are connected in parallel and in series to each other when the capacitor 4 and the secondary capacitor group are connected in series and in parallel, respectively. These series and parallel connections are repeated alternately among plural capacitors to reduce the voltage of a battery 1.
JP918081A 1980-12-29 1981-01-23 Voltage dividing and reducing circuit Pending JPS57123420A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP918081A JPS57123420A (en) 1981-01-23 1981-01-23 Voltage dividing and reducing 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
JP918081A JPS57123420A (en) 1981-01-23 1981-01-23 Voltage dividing and reducing circuit

Publications (1)

Publication Number Publication Date
JPS57123420A true JPS57123420A (en) 1982-07-31

Family

ID=11713352

Family Applications (1)

Application Number Title Priority Date Filing Date
JP918081A Pending JPS57123420A (en) 1980-12-29 1981-01-23 Voltage dividing and reducing circuit

Country Status (1)

Country Link
JP (1) JPS57123420A (en)

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