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AU2003218948A1 - Switched-mode power supply, particularly for medical devices - Google Patents

Switched-mode power supply, particularly for medical devices

Info

Publication number
AU2003218948A1
AU2003218948A1 AU2003218948A AU2003218948A AU2003218948A1 AU 2003218948 A1 AU2003218948 A1 AU 2003218948A1 AU 2003218948 A AU2003218948 A AU 2003218948A AU 2003218948 A AU2003218948 A AU 2003218948A AU 2003218948 A1 AU2003218948 A1 AU 2003218948A1
Authority
AU
Australia
Prior art keywords
voltage
switched
power supply
transformer
mode power
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.)
Abandoned
Application number
AU2003218948A
Inventor
Matthias Maares
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.)
LANDWEHR and SCHULTZ TRAFO GmbH
Original Assignee
Landwehr & Schultz Trafo GmbH
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 Landwehr & Schultz Trafo GmbH filed Critical Landwehr & Schultz Trafo GmbH
Publication of AU2003218948A1 publication Critical patent/AU2003218948A1/en
Abandoned 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
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
    • H02M7/12—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of AC power input into DC power output without possibility of reversal 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
    • H02M7/217—Conversion of AC power input into DC power output without possibility of reversal 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
    • 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
    • H02M3/01—Resonant DC/DC converters
    • 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
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33571—Half-bridge at primary side of an isolation transformer
    • 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)
  • Dc-Dc Converters (AREA)
  • X-Ray Techniques (AREA)
  • Laser Surgery Devices (AREA)
  • Surgical Instruments (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

Disclosed is a switched-mode power supply which is particularly suitable for medical devices and generates a preselected DC voltage (Ua) from a supplying AC voltage. Said switched-mode power supply comprises a first rectifier (39) converting the AC voltage into a DC voltage, a switch arrangement (42) generating a square wave voltage from the DC voltage, a transformer (49), a resonant circuit (54, 55) which is connected between the switch arrangement (42) and the transformer (49), a second rectifier (51) which is connected to the transformer (49) and supplies the preselected DC voltage (Ua), and a control unit (63) periodically actuating the switch arrangement (42) with a frequency that is adjusted to the resonant circuit (54, 55). A Y capacitor (56) is connected between the primary and the secondary of the transformer (49), said Y-capacitor having such a capacity that the Y-capacitor allows only leakage currents below 50 ñA at the nominal frequency and the maximum value of the supplying AC voltage.
AU2003218948A 2002-03-07 2003-03-06 Switched-mode power supply, particularly for medical devices Abandoned AU2003218948A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20203714.2 2002-03-07
DE20203714U DE20203714U1 (en) 2002-03-07 2002-03-07 Switching power supply, in particular for medical devices
PCT/DE2003/000784 WO2003075442A1 (en) 2002-03-07 2003-03-06 Switched-mode power supply, particularly for medical devices

Publications (1)

Publication Number Publication Date
AU2003218948A1 true AU2003218948A1 (en) 2003-09-16

Family

ID=7968721

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003218948A Abandoned AU2003218948A1 (en) 2002-03-07 2003-03-06 Switched-mode power supply, particularly for medical devices

Country Status (5)

Country Link
EP (1) EP1481465B1 (en)
AT (1) ATE317177T1 (en)
AU (1) AU2003218948A1 (en)
DE (2) DE20203714U1 (en)
WO (1) WO2003075442A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502004002457D1 (en) * 2003-04-10 2007-02-08 Laser Optoelektronik Gmbh Z POWER SUPPLY
DE202005019739U1 (en) * 2005-12-15 2006-03-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Luminaire and for protection class 2
US7453710B2 (en) * 2006-04-26 2008-11-18 Power Integrations, Inc. Transformerless safety isolation in a power supply using safety capacitors for galvanic isolation
DE102006058867A1 (en) 2006-12-07 2008-06-12 Aesculap Ag & Co. Kg Surgical switching power supply and surgical DC power tool
DE102007059421A1 (en) 2007-12-10 2009-06-25 H&M Industries Ag Electrical heating element for use in bed i.e. water bed, for treating e.g. disease, has temperature regulator coupled with heater and control unit regulating temperature depending on specific temperature and target-temperature

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2937539C2 (en) * 1979-09-17 1982-09-02 Siemens AG, 1000 Berlin und 8000 München Arrangement for radio interference suppression of switching power supplies
DE4108804A1 (en) * 1991-03-18 1992-09-24 Lauerer Friedrich ELECTROMEDICAL PROTECTIVE CIRCUIT
CH682860A5 (en) * 1991-12-13 1993-11-30 Zellweger Uster Ag Transducers Static electricity meters.
JP3473853B2 (en) * 1992-09-11 2003-12-08 株式会社村田製作所 Switching power supply
JP2000341951A (en) * 1999-05-31 2000-12-08 Toko Inc Switching power supply
DE19936859C1 (en) * 1999-08-05 2001-02-01 Vacuumschmelze Gmbh Noise signal suppression coil for supply network filter has signal winding coupled to optical signal device for indicating saturation of magnetic core resulting from asymmetrical noise
DE19940540A1 (en) * 1999-08-26 2001-03-01 Abb Patent Gmbh High frequency clocked switch-mode power supply based on fly-back converter principal, has radio-interference suppression device of series circuit of two capacitors arranged between
JP3430107B2 (en) * 2000-02-23 2003-07-28 エヌイーシ−カスタムテクニカ株式会社 Leakage current suppression circuit and power supply device using the same

Also Published As

Publication number Publication date
DE50302338D1 (en) 2006-04-13
DE20203714U1 (en) 2002-08-01
WO2003075442A1 (en) 2003-09-12
ATE317177T1 (en) 2006-02-15
EP1481465B1 (en) 2006-02-01
EP1481465A1 (en) 2004-12-01

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase