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JPS57135678A - Voltage declining circuit - Google Patents

Voltage declining circuit

Info

Publication number
JPS57135678A
JPS57135678A JP56019258A JP1925881A JPS57135678A JP S57135678 A JPS57135678 A JP S57135678A JP 56019258 A JP56019258 A JP 56019258A JP 1925881 A JP1925881 A JP 1925881A JP S57135678 A JPS57135678 A JP S57135678A
Authority
JP
Japan
Prior art keywords
capacitors
voltage
switches
during
opened
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
JP56019258A
Other languages
Japanese (ja)
Inventor
Takaharu Miyazaki
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP56019258A priority Critical patent/JPS57135678A/en
Publication of JPS57135678A publication Critical patent/JPS57135678A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/06—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To decline a voltage in the state an input and an output are isolated without using a transformer by combining a plurality of capacitors and a switch. CONSTITUTION:When swithces S1, S2 are closed and switches S3-S6 are opened (during T1), capacitors C1, C2 are charged, and the terminal voltages of both the capacitors become equal. When switches S3-S6 are closed and switches S1, S2 are opened (during T2), the capacitors C1, C2are connected in parallel with the capacitor C3 through the switches S3, S6 and S4, S5. Because, two capacitors C1, C2 are connected in series between the input terminals 1a and 1b during T1, the voltage of 1/2 of the DC voltage V0 applied between the input terminals can be obtained at the respective capacitors, and accordingly the voltage of V0/2 can be obtained between the output terminals 2a and 2b during T2.
JP56019258A 1981-02-12 1981-02-12 Voltage declining circuit Pending JPS57135678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56019258A JPS57135678A (en) 1981-02-12 1981-02-12 Voltage declining circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56019258A JPS57135678A (en) 1981-02-12 1981-02-12 Voltage declining circuit

Publications (1)

Publication Number Publication Date
JPS57135678A true JPS57135678A (en) 1982-08-21

Family

ID=11994401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56019258A Pending JPS57135678A (en) 1981-02-12 1981-02-12 Voltage declining circuit

Country Status (1)

Country Link
JP (1) JPS57135678A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010011633A (en) * 2008-06-26 2010-01-14 Institute Of National Colleges Of Technology Japan Dc-dc power supply
JP2010074930A (en) * 2008-09-18 2010-04-02 Sumitomo Electric Ind Ltd Voltage conversion circuit
JP2010074931A (en) * 2008-09-18 2010-04-02 Sumitomo Electric Ind Ltd Voltage conversion circuit
JP2010074929A (en) * 2008-09-18 2010-04-02 Sumitomo Electric Ind Ltd Voltage conversion circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4815020A (en) * 1971-06-30 1973-02-26
JPS5280423A (en) * 1975-12-26 1977-07-06 M Syst Giken Kk Dccdc converter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4815020A (en) * 1971-06-30 1973-02-26
JPS5280423A (en) * 1975-12-26 1977-07-06 M Syst Giken Kk Dccdc converter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010011633A (en) * 2008-06-26 2010-01-14 Institute Of National Colleges Of Technology Japan Dc-dc power supply
JP2010074930A (en) * 2008-09-18 2010-04-02 Sumitomo Electric Ind Ltd Voltage conversion circuit
JP2010074931A (en) * 2008-09-18 2010-04-02 Sumitomo Electric Ind Ltd Voltage conversion circuit
JP2010074929A (en) * 2008-09-18 2010-04-02 Sumitomo Electric Ind Ltd Voltage conversion circuit

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