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GB2507776B - Filter circuit - Google Patents

Filter circuit

Info

Publication number
GB2507776B
GB2507776B GB201220198A GB201220198A GB2507776B GB 2507776 B GB2507776 B GB 2507776B GB 201220198 A GB201220198 A GB 201220198A GB 201220198 A GB201220198 A GB 201220198A GB 2507776 B GB2507776 B GB 2507776B
Authority
GB
United Kingdom
Prior art keywords
filter circuit
filter
circuit
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
GB201220198A
Other versions
GB201220198D0 (en
GB2507776A (en
Inventor
Colin Arrowsmith
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.)
KBO Dynamics International Ltd
Original Assignee
KBO Dynamics International 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 KBO Dynamics International Ltd filed Critical KBO Dynamics International Ltd
Priority to GB201220198A priority Critical patent/GB2507776B/en
Publication of GB201220198D0 publication Critical patent/GB201220198D0/en
Publication of GB2507776A publication Critical patent/GB2507776A/en
Application granted granted Critical
Publication of GB2507776B publication Critical patent/GB2507776B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H02M1/14—Arrangements for reducing ripples from DC input or output
    • 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
    • H02M1/126—Arrangements for reducing harmonics from AC input or output using passive filters
    • 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
    • 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
    • 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
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
    • H03H7/425—Balance-balance networks
    • H03H7/427—Common-mode filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F2017/0093—Common mode choke coil
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/372—Noise reduction and elimination in amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0107—Non-linear filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Amplifiers (AREA)
GB201220198A 2012-11-09 2012-11-09 Filter circuit Active GB2507776B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201220198A GB2507776B (en) 2012-11-09 2012-11-09 Filter circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201220198A GB2507776B (en) 2012-11-09 2012-11-09 Filter circuit

Publications (3)

Publication Number Publication Date
GB201220198D0 GB201220198D0 (en) 2012-12-26
GB2507776A GB2507776A (en) 2014-05-14
GB2507776B true GB2507776B (en) 2014-12-10

Family

ID=47470349

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201220198A Active GB2507776B (en) 2012-11-09 2012-11-09 Filter circuit

Country Status (1)

Country Link
GB (1) GB2507776B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108712088A (en) * 2018-06-13 2018-10-26 深圳市海蕴新能源有限公司 A kind of switching power circuit inhibiting EFT harassing and wrecking

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018216594A1 (en) * 2018-09-27 2020-04-02 Zf Friedrichshafen Ag Improvement of electromagnetic compatibility
WO2025183550A1 (en) * 2024-02-26 2025-09-04 Tan, Boon Heng A circuit for improving sound output of an audio system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040183466A1 (en) * 2003-03-19 2004-09-23 Moisin Mihail S. Circuit having global feedback for promoting linear operation
US20040218407A1 (en) * 2003-01-17 2004-11-04 Matsushita Electric Works, Ltd. Switching power supply device
JP2008041561A (en) * 2006-08-09 2008-02-21 Koito Mfg Co Ltd Discharge lamp lighting circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040218407A1 (en) * 2003-01-17 2004-11-04 Matsushita Electric Works, Ltd. Switching power supply device
US20040183466A1 (en) * 2003-03-19 2004-09-23 Moisin Mihail S. Circuit having global feedback for promoting linear operation
JP2008041561A (en) * 2006-08-09 2008-02-21 Koito Mfg Co Ltd Discharge lamp lighting circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108712088A (en) * 2018-06-13 2018-10-26 深圳市海蕴新能源有限公司 A kind of switching power circuit inhibiting EFT harassing and wrecking

Also Published As

Publication number Publication date
GB201220198D0 (en) 2012-12-26
GB2507776A (en) 2014-05-14

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20210506 AND 20210512