JPS573579A - Electric-power supply device - Google Patents

Electric-power supply device

Info

Publication number
JPS573579A
JPS573579A JP7661180A JP7661180A JPS573579A JP S573579 A JPS573579 A JP S573579A JP 7661180 A JP7661180 A JP 7661180A JP 7661180 A JP7661180 A JP 7661180A JP S573579 A JPS573579 A JP S573579A
Authority
JP
Japan
Prior art keywords
electric angle
period
charging current
input current
during
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.)
Granted
Application number
JP7661180A
Other languages
Japanese (ja)
Other versions
JPS6245794B2 (en
Inventor
Yuji Kawaguchi
Kenichi Iizuka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7661180A priority Critical patent/JPS573579A/en
Publication of JPS573579A publication Critical patent/JPS573579A/en
Publication of JPS6245794B2 publication Critical patent/JPS6245794B2/ja
Granted 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/12—Arrangements for reducing harmonics from AC input or output
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)

Abstract

PURPOSE:To reduce the tertiary higher harmonic component of the input current and improve the power factor, by a method wherein in a voltage doubler rectifier circuit, a power source is short-circuited through smoothing reactors during a period when the charging current of a capacitor does not flow. CONSTITUTION:The power source short-circuiting circuit comprises smoothing reactors 3, diodes 1, transistors Tr7' and 7 and a current detector 8. Because a forward voltage is applied to the Tr7' during a period of electric angle 0-pi, the Tr7' is on from an electric angle 0. When the input current reaches the highest limit value of a reference voltage, the output of a comparing circuit 9 becomes negative, so that the Tr7' turns off. On the other hand, when the input current decreases to the lowest limit value of the reference voltage, the Tr7' turns on again. Because the Tr7' repeats such an on/off operation and the charging current of a capacitor C2' suddenly increases when the electric angle is in the vicinity of pi/2, the off period of the Tr7' elongates. When the electric angle is over the point of pi/2, the charging current of the C2' attenuates, and the Tr7' repeates the on/off operation again. Similarly, the Tr7 operates during a period of electric angle pi-2pi.
JP7661180A 1980-06-09 1980-06-09 Electric-power supply device Granted JPS573579A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7661180A JPS573579A (en) 1980-06-09 1980-06-09 Electric-power supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7661180A JPS573579A (en) 1980-06-09 1980-06-09 Electric-power supply device

Publications (2)

Publication Number Publication Date
JPS573579A true JPS573579A (en) 1982-01-09
JPS6245794B2 JPS6245794B2 (en) 1987-09-29

Family

ID=13610130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7661180A Granted JPS573579A (en) 1980-06-09 1980-06-09 Electric-power supply device

Country Status (1)

Country Link
JP (1) JPS573579A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59198873A (en) * 1983-04-26 1984-11-10 Toshiba Corp Rectified power source circuit
JPS60174024A (en) * 1984-02-17 1985-09-07 株式会社東芝 Reactive power compensator for rectifying circuit
JPS60247720A (en) * 1984-05-23 1985-12-07 Toshiba Corp Direct current power unit
JPS63190562A (en) * 1987-01-29 1988-08-08 Nec Corp Voltage multiplying rectifier
JPH0311391U (en) * 1989-06-21 1991-02-04
WO1992007417A1 (en) * 1990-10-19 1992-04-30 Italtel Societa' Italiana Telecomunicazioni S.P.A. Ac/dc converter
US5245522A (en) * 1990-11-22 1993-09-14 Hitachi, Ltd. Power supply controlled to supply load current formed as sine wave
EP1022844A3 (en) * 1999-01-19 2002-04-17 Matsushita Electric Industrial Co., Ltd. Power supply device and air conditioner using the same
JP2017055544A (en) * 2015-09-09 2017-03-16 シャープ株式会社 Power factor improvement circuit and power supply device
JP2024141633A (en) * 2023-03-29 2024-10-10 株式会社豊田自動織機 Power Conversion Equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012019637A (en) * 2010-07-08 2012-01-26 Fujitsu Ltd Voltage dividing power factor improvement circuit, voltage dividing power factor improvement device, and voltage dividing power factor improvement method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317932A (en) * 1976-07-31 1978-02-18 Hitachi Ltd Electric current source circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317932A (en) * 1976-07-31 1978-02-18 Hitachi Ltd Electric current source circuit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59198873A (en) * 1983-04-26 1984-11-10 Toshiba Corp Rectified power source circuit
JPS60174024A (en) * 1984-02-17 1985-09-07 株式会社東芝 Reactive power compensator for rectifying circuit
JPS60247720A (en) * 1984-05-23 1985-12-07 Toshiba Corp Direct current power unit
JPS63190562A (en) * 1987-01-29 1988-08-08 Nec Corp Voltage multiplying rectifier
JPH0311391U (en) * 1989-06-21 1991-02-04
WO1992007417A1 (en) * 1990-10-19 1992-04-30 Italtel Societa' Italiana Telecomunicazioni S.P.A. Ac/dc converter
US5245522A (en) * 1990-11-22 1993-09-14 Hitachi, Ltd. Power supply controlled to supply load current formed as sine wave
EP1022844A3 (en) * 1999-01-19 2002-04-17 Matsushita Electric Industrial Co., Ltd. Power supply device and air conditioner using the same
USRE39060E1 (en) 1999-01-19 2006-04-11 Matsushita Electric Industrial Co., Ltd. Power supply device and air conditioner using the same
JP2017055544A (en) * 2015-09-09 2017-03-16 シャープ株式会社 Power factor improvement circuit and power supply device
JP2024141633A (en) * 2023-03-29 2024-10-10 株式会社豊田自動織機 Power Conversion Equipment

Also Published As

Publication number Publication date
JPS6245794B2 (en) 1987-09-29

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