DE60002737D1 - Vorrichtung zu einem impedanzanpassenden röhrenverstärker für audiosignale zum einfügen in einen signalweg - Google Patents

Vorrichtung zu einem impedanzanpassenden röhrenverstärker für audiosignale zum einfügen in einen signalweg

Info

Publication number
DE60002737D1
DE60002737D1 DE60002737T DE60002737T DE60002737D1 DE 60002737 D1 DE60002737 D1 DE 60002737D1 DE 60002737 T DE60002737 T DE 60002737T DE 60002737 T DE60002737 T DE 60002737T DE 60002737 D1 DE60002737 D1 DE 60002737D1
Authority
DE
Germany
Prior art keywords
impedance
low frequency
automatic cutting
cutting feed
low
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.)
Expired - Lifetime
Application number
DE60002737T
Other languages
English (en)
Other versions
DE60002737T2 (de
Inventor
Nicolas Girard
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE60002737D1 publication Critical patent/DE60002737D1/de
Application granted granted Critical
Publication of DE60002737T2 publication Critical patent/DE60002737T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
DE60002737T 1999-09-15 2000-09-14 Vorrichtung zu einem impedanzanpassenden röhrenverstärker für audiosignale zum einfügen in einen signalweg Expired - Lifetime DE60002737T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9911524A FR2798537B1 (fr) 1999-09-15 1999-09-15 Interface preamplificatrice a tube electronique en ligne audiofrequence fonctionnant sur alimentation a decoupage haute frequence, destinee notamment aux ordinateurs multimedia
FR9911524 1999-09-15
PCT/FR2000/002552 WO2001020777A1 (fr) 1999-09-15 2000-09-14 Dispositif preamplificateur adaptateur d'impedance pour audiofrequences a tubes electroniques inserable en ligne sur le trajet du signal basses frequences

Publications (2)

Publication Number Publication Date
DE60002737D1 true DE60002737D1 (de) 2003-06-18
DE60002737T2 DE60002737T2 (de) 2004-04-01

Family

ID=9549859

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60002737T Expired - Lifetime DE60002737T2 (de) 1999-09-15 2000-09-14 Vorrichtung zu einem impedanzanpassenden röhrenverstärker für audiosignale zum einfügen in einen signalweg

Country Status (8)

Country Link
US (1) US7046814B2 (de)
EP (1) EP1212831B1 (de)
CN (1) CN1214521C (de)
AT (1) ATE240608T1 (de)
AU (1) AU7430100A (de)
DE (1) DE60002737T2 (de)
FR (1) FR2798537B1 (de)
WO (1) WO2001020777A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020052665A1 (en) * 2000-11-01 2002-05-02 Memran Louis I. Utilizing vacuum tubes in computer audio circuitry
TWI233243B (en) * 2003-04-24 2005-05-21 Egbon Electronics Ltd Converting method of audio signal
US20050146227A1 (en) * 2003-12-31 2005-07-07 Jackson Steven A. Phone adapter for connecting auxiliary sound devices and an auxiliary hands-free device
US8401208B2 (en) * 2007-11-14 2013-03-19 Infineon Technologies Ag Anti-shock methods for processing capacitive sensor signals
DE102016210614B4 (de) * 2016-06-15 2019-03-21 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung und Verfahren zur Verarbeitung eines digitalen Audiosignals in einem Fahrzeug, Audiosystem und Fahrzeug
US10938364B2 (en) * 2019-06-27 2021-03-02 Echowell Electronic Co., Ltd. Vacuum tube subwoofer extraction circuit system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2918630A (en) * 1955-02-25 1959-12-22 Jr Martin V Kiebert Power amplifier and method of operation
US2965853A (en) * 1957-09-03 1960-12-20 Texas Instruments Inc Augmented cathode follower
US3654537A (en) * 1970-04-29 1972-04-04 Westinghouse Electric Corp High efficiency power supply for charging capacitors in steps
CH530121A (de) * 1971-04-14 1972-10-31 Patelhold Patentverwaltungs Un Hochleistungssenderanordnung
US4092608A (en) * 1976-07-28 1978-05-30 Walter David Woods Electronic circuitry
US4673888A (en) * 1986-09-02 1987-06-16 Electro-Voice, Inc. Power control system
US5343159A (en) * 1993-02-16 1994-08-30 Butler Brent K Direct box employing hybrid vacuum tube and solid state circuitry
US5526253A (en) * 1993-09-22 1996-06-11 Advanced Micro Devices, Inc. Low power voltage boost circuit with regulated output
US5550509A (en) * 1995-01-09 1996-08-27 Trentino; Salvatore J. Output power selection apparatus for a tube-type audio amplifier
US5612646A (en) * 1995-08-30 1997-03-18 Berning; David W. Output transformerless amplifier impedance matching apparatus
KR100315614B1 (ko) * 1995-10-31 2002-09-17 산요 덴키 가부시키가이샤 증폭회로
US5604461A (en) * 1996-01-22 1997-02-18 Rozenblit; Bruce M. Transformerless output vacuum tube audio amplifier
US6107862A (en) * 1997-02-28 2000-08-22 Seiko Instruments Inc. Charge pump circuit
US6140870A (en) * 1998-05-18 2000-10-31 Cook; Erick M. Hybrid thermionic valve and solid state audio amplifier

Also Published As

Publication number Publication date
ATE240608T1 (de) 2003-05-15
FR2798537B1 (fr) 2003-02-14
CN1214521C (zh) 2005-08-10
AU7430100A (en) 2001-04-17
WO2001020777A1 (fr) 2001-03-22
CN1382321A (zh) 2002-11-27
EP1212831B1 (de) 2003-05-14
EP1212831A1 (de) 2002-06-12
FR2798537A1 (fr) 2001-03-16
US7046814B2 (en) 2006-05-16
DE60002737T2 (de) 2004-04-01
US20020172380A1 (en) 2002-11-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition