GB2469124B - Power supply - Google Patents

Power supply

Info

Publication number
GB2469124B
GB2469124B GB0905842.1A GB0905842A GB2469124B GB 2469124 B GB2469124 B GB 2469124B GB 0905842 A GB0905842 A GB 0905842A GB 2469124 B GB2469124 B GB 2469124B
Authority
GB
United Kingdom
Prior art keywords
load
power supply
input
power
reaching
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.)
Active
Application number
GB0905842.1A
Other versions
GB0905842D0 (en
GB2469124A (en
Inventor
Martin Hannen
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.)
Thales Holdings UK PLC
Original Assignee
Thales Holdings UK PLC
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 Thales Holdings UK PLC filed Critical Thales Holdings UK PLC
Priority to GB0905842.1A priority Critical patent/GB2469124B/en
Publication of GB0905842D0 publication Critical patent/GB0905842D0/en
Publication of GB2469124A publication Critical patent/GB2469124A/en
Application granted granted Critical
Publication of GB2469124B publication Critical patent/GB2469124B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/02—Arrangements for reducing harmonics or ripples
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H03F3/187—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only in integrated circuits
    • 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
    • H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)

Abstract

A power supply for an audio amplifier has a sub-audio frequency-switched power filter between both poles of a DC input and both respective poles of a DC output. A capacitor is charged from the supply and then discharged into the load. Continuous power may be supplied to the load with two capacitors C1, C2 alternately switched so that one capacitor charges whilst the other supplies the load. Therefore there is no direct connection between the power supply and load, preventing audio signals reaching the load, and also preventing signals generated by the load circuit from reaching the dc input. The power supply is suitable for use in an aircraft.
GB0905842.1A 2009-04-03 2009-04-03 Power supply Active GB2469124B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0905842.1A GB2469124B (en) 2009-04-03 2009-04-03 Power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0905842.1A GB2469124B (en) 2009-04-03 2009-04-03 Power supply

Publications (3)

Publication Number Publication Date
GB0905842D0 GB0905842D0 (en) 2009-05-20
GB2469124A GB2469124A (en) 2010-10-06
GB2469124B true GB2469124B (en) 2013-10-30

Family

ID=40750091

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0905842.1A Active GB2469124B (en) 2009-04-03 2009-04-03 Power supply

Country Status (1)

Country Link
GB (1) GB2469124B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107017794A (en) * 2016-01-28 2017-08-04 黄森隆 Isolated non-inductance electric heating source converting system and its method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013114377A1 (en) * 2013-12-18 2015-06-18 Endress + Hauser Gmbh + Co. Kg Field device for detecting or monitoring a physical or chemical process variable of a medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0998567A (en) * 1995-07-27 1997-04-08 Toshiyasu Suzuki Insulating power supply means and voltage transforming means
US6559689B1 (en) * 2000-10-02 2003-05-06 Allegro Microsystems, Inc. Circuit providing a control voltage to a switch and including a capacitor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0998567A (en) * 1995-07-27 1997-04-08 Toshiyasu Suzuki Insulating power supply means and voltage transforming means
US6559689B1 (en) * 2000-10-02 2003-05-06 Allegro Microsystems, Inc. Circuit providing a control voltage to a switch and including a capacitor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107017794A (en) * 2016-01-28 2017-08-04 黄森隆 Isolated non-inductance electric heating source converting system and its method
CN107017794B (en) * 2016-01-28 2019-05-07 黄森隆 Isolated non-inductance electric heating source converting system and its method

Also Published As

Publication number Publication date
GB0905842D0 (en) 2009-05-20
GB2469124A (en) 2010-10-06

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