GB2022943A - A.C. to D.C. converter - Google Patents

A.C. to D.C. converter

Info

Publication number
GB2022943A
GB2022943A GB7920270A GB7920270A GB2022943A GB 2022943 A GB2022943 A GB 2022943A GB 7920270 A GB7920270 A GB 7920270A GB 7920270 A GB7920270 A GB 7920270A GB 2022943 A GB2022943 A GB 2022943A
Authority
GB
United Kingdom
Prior art keywords
supply
capacitor
transistor
switching transistor
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.)
Granted
Application number
GB7920270A
Other versions
GB2022943B (en
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB2022943A publication Critical patent/GB2022943A/en
Application granted granted Critical
Publication of GB2022943B publication Critical patent/GB2022943B/en
Expired 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
    • H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
    • 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
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • 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)
  • Dc-Dc Converters (AREA)
  • Power Conversion In General (AREA)

Abstract

In an a.c. to d.c. converter comprising a rectifier (3) which feeds a reservoir capacitor (13) and a load (14) a choke (9) is interposed in the current path between the a.c. supply (1) and the capacitor (13), and a switching transistor (10) connected across the capacitor is repeatedly switched at a frequency appreciably greater than the supply frequency, so that current is alternately drawn from the supply when the transistor conducts to store energy in the choke (even when the instantaneous supply voltage is lower than the capacitor voltage) and transferred to the capacitor when the transistor is not conducting. The duty ratio of the switching transistor is controlled such that the supply current (i) substantially follows the supply voltage (v). Feedback from a comparator (19) to vary the duty ratio of the switching transistor may be provided via opto- coupler (20, 8) to regulate the output voltage. <IMAGE>
GB7920270A 1978-06-12 1979-06-11 Ac to dc converter Expired GB2022943B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2825708A DE2825708B2 (en) 1978-06-12 1978-06-12 Circuit arrangement for reducing harmonics in the alternating current in the case of direct current consumers that are fed from the alternating current network

Publications (2)

Publication Number Publication Date
GB2022943A true GB2022943A (en) 1979-12-19
GB2022943B GB2022943B (en) 1982-04-28

Family

ID=6041602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7920270A Expired GB2022943B (en) 1978-06-12 1979-06-11 Ac to dc converter

Country Status (6)

Country Link
DE (1) DE2825708B2 (en)
FR (1) FR2428939A1 (en)
GB (1) GB2022943B (en)
IT (1) IT1121370B (en)
NL (1) NL7904595A (en)
SE (1) SE7905092L (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2539563A1 (en) * 1983-01-14 1984-07-20 Matsushita Electric Works Ltd HIGH FREQUENCY ALTERNATIVE POWER SOURCE
US4564897A (en) * 1983-01-13 1986-01-14 Matsushita Electric Works, Ltd. Power source
EP0356818A2 (en) * 1988-08-30 1990-03-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuitry for driving a load
WO1994016492A1 (en) * 1993-01-14 1994-07-21 H.P.M. Industries Pty Limited Power supply
AU672796B2 (en) * 1993-01-14 1996-10-17 H.P.M. Industries Pty Limited Power supply
EP0854562A1 (en) * 1996-12-17 1998-07-22 PAPST-MOTOREN GMBH &amp; CO. KG Switching power supply
WO2000004627A1 (en) * 1998-07-14 2000-01-27 Siemens Aktiengesellschaft Circuit for regulated power supply for a charge
US7683625B2 (en) 2004-07-02 2010-03-23 Ohm Limited Electromagnetic surveying

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3025421C2 (en) * 1980-07-04 1985-03-21 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for supplying a gas discharge lamp from an alternating current network
DE3025405C2 (en) * 1980-07-04 1983-01-20 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method for achieving a sinusoidal power consumption of a direct current consumer with a charging capacitor connected in parallel
AT374637B (en) * 1980-12-15 1984-05-10 Zumtobel Ag CIRCUIT ARRANGEMENT FOR OPERATING A LOAD FROM AN AC NETWORK
DE3117516C2 (en) * 1981-05-02 1984-07-26 Escher Wyss AG, Zürich Arrangement for controlling a deflection adjusting roller
DE3522568A1 (en) * 1985-06-24 1987-01-02 Metallgesellschaft Ag METHOD FOR OPERATING AN ELECTROFILTER
DE3533666A1 (en) * 1985-09-20 1987-03-26 Siemens Ag Power supply device having pulsed charging current limiting

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1219437A (en) * 1968-08-23 1971-01-13 British Aircraft Corp Ltd Improvements relating to power supply circuits
US3825815A (en) * 1973-06-12 1974-07-23 Westinghouse Electric Corp Electrical power system
US3913002A (en) * 1974-01-02 1975-10-14 Gen Electric Power circuits for obtaining a high power factor electronically

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564897A (en) * 1983-01-13 1986-01-14 Matsushita Electric Works, Ltd. Power source
FR2539563A1 (en) * 1983-01-14 1984-07-20 Matsushita Electric Works Ltd HIGH FREQUENCY ALTERNATIVE POWER SOURCE
DE3400580A1 (en) * 1983-01-14 1984-09-27 Matsushita Electric Works Ltd POWER SOURCE OR MAINS DEVICE FOR CONVERTING A MAINS AC VOLTAGE TO A HIGH-FREQUENCY AC OUTPUT VOLTAGE WITH SUPPRESSED NET HUMAN
EP0356818A2 (en) * 1988-08-30 1990-03-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuitry for driving a load
US4959591A (en) * 1988-08-30 1990-09-25 Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen M.B.H. Rectifier-inverter circuit with low harmonic feedback, particularly for operation of fluorescent lamps
EP0356818A3 (en) * 1988-08-30 1991-09-18 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuitry for driving a load
WO1994016492A1 (en) * 1993-01-14 1994-07-21 H.P.M. Industries Pty Limited Power supply
US5528484A (en) * 1993-01-14 1996-06-18 H.P.M. Industries Pty Limited Power supply
AU672796B2 (en) * 1993-01-14 1996-10-17 H.P.M. Industries Pty Limited Power supply
EP0854562A1 (en) * 1996-12-17 1998-07-22 PAPST-MOTOREN GMBH &amp; CO. KG Switching power supply
WO2000004627A1 (en) * 1998-07-14 2000-01-27 Siemens Aktiengesellschaft Circuit for regulated power supply for a charge
US7683625B2 (en) 2004-07-02 2010-03-23 Ohm Limited Electromagnetic surveying

Also Published As

Publication number Publication date
GB2022943B (en) 1982-04-28
FR2428939A1 (en) 1980-01-11
SE7905092L (en) 1979-12-13
IT1121370B (en) 1986-04-02
DE2825708B2 (en) 1980-06-26
DE2825708A1 (en) 1979-12-13
NL7904595A (en) 1979-12-14
IT7923441A0 (en) 1979-06-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee