DK147487A - Sammensat lavfrekvensforstaerker - Google Patents

Sammensat lavfrekvensforstaerker

Info

Publication number
DK147487A
DK147487A DK147487A DK147487A DK147487A DK 147487 A DK147487 A DK 147487A DK 147487 A DK147487 A DK 147487A DK 147487 A DK147487 A DK 147487A DK 147487 A DK147487 A DK 147487A
Authority
DK
Denmark
Prior art keywords
low frequency
frequency amplifier
composition low
composition
amplifier
Prior art date
Application number
DK147487A
Other languages
Danish (da)
English (en)
Other versions
DK147487D0 (da
Inventor
David George Beale
Original Assignee
David George Beale
Charters John Dumergue
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 David George Beale, Charters John Dumergue filed Critical David George Beale
Publication of DK147487D0 publication Critical patent/DK147487D0/da
Publication of DK147487A publication Critical patent/DK147487A/da

Links

Classifications

    • 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
    • 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
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3069—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output
    • H03F3/3076—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output with symmetrical driving of the end stage
    • H03F3/3079—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output with symmetrical driving of the end stage using parallel power transistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
DK147487A 1985-07-22 1987-03-23 Sammensat lavfrekvensforstaerker DK147487A (da)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPH156685 1985-07-22
AUPH156485 1985-07-22
PCT/AU1986/000208 WO1987000709A1 (en) 1985-07-22 1986-07-22 Composite audio amplifier

Publications (2)

Publication Number Publication Date
DK147487D0 DK147487D0 (da) 1987-03-23
DK147487A true DK147487A (da) 1987-03-23

Family

ID=25642971

Family Applications (1)

Application Number Title Priority Date Filing Date
DK147487A DK147487A (da) 1985-07-22 1987-03-23 Sammensat lavfrekvensforstaerker

Country Status (8)

Country Link
US (1) US4757271A (ko)
KR (1) KR950005166B1 (ko)
CA (1) CA1264826A (ko)
DK (1) DK147487A (ko)
IN (1) IN166433B (ko)
MX (1) MX168521B (ko)
NZ (1) NZ216904A (ko)
WO (1) WO1987000709A1 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI89110C (fi) * 1991-09-19 1993-08-10 Nokia Mobile Phones Ltd Effektdetektor
JP3650460B2 (ja) * 1996-03-06 2005-05-18 株式会社アドバンテスト 温度補正付きドライバ回路
SE511337C2 (sv) * 1996-11-08 1999-09-13 Ericsson Telefon Ab L M Anordning för att skydda sluttransistorerna i en effektförstärkare
US6281751B1 (en) * 1999-08-16 2001-08-28 Cirrus Logic, Inc. Frequency compensation for single-ended class AB operational amplifiers with fully-differential input stages
US6678132B1 (en) * 2002-09-06 2004-01-13 Bae Systems Controls, Inc. Ground fault detection system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5673908A (en) * 1979-11-20 1981-06-19 Matsushita Electric Ind Co Ltd Protection circuit for switching amplifier
JPS56152306A (en) * 1980-04-24 1981-11-25 Olympus Optical Co Ltd Speaker protector
JPS56160112A (en) * 1980-04-30 1981-12-09 Sony Corp Biasing circuit of electric power amplifier
JPS6057247B2 (ja) * 1980-09-17 1985-12-13 ヤマハ株式会社 増幅器の保護回路
JPS5831606A (ja) * 1981-08-20 1983-02-24 Sanyo Electric Co Ltd 電力増幅回路の保護回路
JPS5868307A (ja) * 1981-10-19 1983-04-23 Pioneer Electronic Corp プツシユプルアンプの過電流保護回路
JPS58196704A (ja) * 1982-05-11 1983-11-16 Nippon Gakki Seizo Kk 電力増幅器の出力制限回路
NO833333L (no) * 1982-09-20 1984-03-21 Int Standard Electric Corp Elektronisk krets for beskyttelse mot overbelastning
US4638260A (en) * 1984-09-21 1987-01-20 Hamley James P Audio amplifier

Also Published As

Publication number Publication date
KR880700536A (ko) 1988-03-15
DK147487D0 (da) 1987-03-23
CA1264826A (en) 1990-01-23
WO1987000709A1 (en) 1987-01-29
MX168521B (es) 1993-05-28
IN166433B (ko) 1990-05-05
NZ216904A (en) 1989-01-06
US4757271A (en) 1988-07-12
KR950005166B1 (ko) 1995-05-19

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Legal Events

Date Code Title Description
AHS Application shelved for other reasons than non-payment
AHS Application shelved for other reasons than non-payment
PUP Patent expired