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KR890003113A - Btl 전력증폭 회로 - Google Patents

Btl 전력증폭 회로 Download PDF

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Publication number
KR890003113A
KR890003113A KR1019880008688A KR880008688A KR890003113A KR 890003113 A KR890003113 A KR 890003113A KR 1019880008688 A KR1019880008688 A KR 1019880008688A KR 880008688 A KR880008688 A KR 880008688A KR 890003113 A KR890003113 A KR 890003113A
Authority
KR
South Korea
Prior art keywords
amplifier circuit
input signal
btl power
inverting
standby state
Prior art date
Application number
KR1019880008688A
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English (en)
Other versions
KR900008757B1 (ko
Inventor
가즈오 이마시니
Original Assignee
아오이 죠이치
가부시키가이샤 도시바
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.)
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Application filed by 아오이 죠이치, 가부시키가이샤 도시바 filed Critical 아오이 죠이치
Publication of KR890003113A publication Critical patent/KR890003113A/ko
Application granted granted Critical
Publication of KR900008757B1 publication Critical patent/KR900008757B1/ko

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements 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
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/305—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in case of switching on or off of a power supply
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

내용 없음

Description

BTL의 전력증폭회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 3도는 본 발명의 1실시예에 관한 BTL 전력증폭회로를 나타낸 회로도. 제 4도는 본 발명의 BTL 전력 증폭회로에서 이용되는 바이어스 회로를 나타낸 회로도. 제5도는 본 발명에 다른 실시예에 관한 BTL 선택 증폭회로를 나타낸 회로도.

Claims (6)

  1. 입력신호가 증폭된 동작상태와 입력신호가 증폭되지 않는 스탠바이 상태를 이루도록 구성된 BTL 전력 증폭회로에 있어서, 입력신호를 증폭시켜 주고 부하(19)로 증폭되어진 입력신호를 공급해 주도록 제 1 및 제 2전압원(+VCC, -VEE)으로 응답해주는 증폭수단(11)과, 스탠바이상태로 선택된 후 미리 정해진 시간동안 스탠바이상태로 증폭수단(11)의 변경을 지연시켜 주는 타이밍수단(20)과 스탠바이 상태가 선택될 때 증폭수단(11)으로 미리 정해진 전위를 공급해 주는 공급수단(12)으로 이루어져 동작상태와 스탠바이 상태 사이에서 선택적으로 증폭수단(11)을 변경시켜 주는 모우드 스위칭 수단을 구비해서 이루어진 것을 특징으로 하는 BTL 전력증폭회로.
  2. 제 1항에 있어서, 상기 증폭수단(11)이 입력신호를 증폭시켜 주기 위해 제 1 및 제 1 전압원으로 바이어스 되는 비반전 증폭회로(15a)와, 입력신호를 증폭시켜 주기 위해 제 1 및 제 2전압원으로 바이어스 되는 반전증폭회로 (15b)로 이루어진 것을 특징으로 하는 BTL 전력증폭회로.
  3. 제 2항에 있어서, 상기 비반전 증폭회로(15a)가 비반전 입력단자(+)와 반전 입력단자(-)를 갖춘것을 특징으로 하는 BTL 전력증폭회로.
  4. 제 1항에 있어서, 상기 모우드 스위칭 수단이 증폭수단(11)으로 바이어스 전류를 공급해 주는 바이어스수단(13)으로 이루어지고, 타이밍수단이 바이어스전류를 서서히 낮혀주는 타이머회로로 이루어진 것을 특징으로 하는 BTL 전력증폭회로.
  5. 제 2항에 있어서 상기 비반전 증폭회로(15a)와 반전증폭회로(15b)가 각기 반전 입력단자(-)와 비반전 입력단자(+)를 갖춘것을 특징으로 하는 BTL 전력증폭회로.
  6. 제 2항에 있어서 상기 공급수단(12)이 제 1 및 제 2전원중 한전원의 전위와 실질적으로 동일한 레벨로 되도록 미리 정해진 전위를 제한해 주는 트랜지스터로 이루어진 것을 특징으로 하는 BTL 전력증폭회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880008688A 1987-07-13 1988-07-13 Btl 전력증폭회로 KR900008757B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62-172828 1986-11-10
JP172828 1987-07-13
JP62172828A JP2547781B2 (ja) 1987-07-13 1987-07-13 Ｂｔｌ電力増幅回路

Publications (2)

Publication Number Publication Date
KR890003113A true KR890003113A (ko) 1989-04-13
KR900008757B1 KR900008757B1 (ko) 1990-11-29

Family

ID=15949112

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880008688A KR900008757B1 (ko) 1987-07-13 1988-07-13 Btl 전력증폭회로

Country Status (5)

Country Link
US (1) US4853648A (ko)
EP (1) EP0299665A3 (ko)
JP (1) JP2547781B2 (ko)
KR (1) KR900008757B1 (ko)
MY (1) MY103749A (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220126459A (ko) 2021-03-09 2022-09-16 (유)현창기업 생산성 향상을 위해 좌굴변형을 최소화하는 자동용접장치

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0642637B2 (ja) * 1988-08-12 1994-06-01 三洋電機株式会社 低周波電力増幅用パワーセイブ回路
JP2609723B2 (ja) * 1989-05-31 1997-05-14 株式会社東芝 増幅回路
JPH0666592B2 (ja) * 1989-11-30 1994-08-24 株式会社東芝 電力増幅装置
US5436588A (en) * 1993-12-17 1995-07-25 National Semiconductor Corp. Click/pop free bias circuit
EP0678975B1 (en) * 1994-04-15 1997-10-08 STMicroelectronics S.r.l. Low frequency amplifier
EP0913996A1 (en) * 1997-11-03 1999-05-06 SONY-WEGA PRODUKTIONS GmbH Power supply control
WO2002015388A2 (en) * 2000-08-11 2002-02-21 Maxim Integrated Products, Inc. Amplifier circuits and methods to provide smooth transition of amplifier outputs during powering sequences
FR2830699B1 (fr) 2001-10-05 2004-12-24 St Microelectronics Sa Circuit amplificateur audio
JP4738090B2 (ja) * 2005-08-05 2011-08-03 株式会社東芝 Ｂｔｌ方式の増幅回路
JP5017465B1 (ja) 2011-02-21 2012-09-05 株式会社東芝 電子機器、スタンド

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550025A (en) * 1968-10-16 1970-12-22 David S Stodolsky Class b transistor power amplifier
US3745477A (en) * 1972-01-26 1973-07-10 Honeywell Inc Amplifier apparatus for use with an inductive load
US4041408A (en) * 1976-11-12 1977-08-09 Rca Corporation Push-pull audio amplifier system with muting
US4165494A (en) * 1978-04-28 1979-08-21 Circuit Technology Incorporated Bi-state linear amplifier
JPH0112411Y2 (ko) * 1980-09-22 1989-04-11
IT1213158B (it) * 1984-04-20 1989-12-14 Ates Componenti Elettron Circuito di controllo dell'accensione per amplificatore audio.
NL8403819A (nl) * 1984-12-17 1986-07-16 Philips Nv Schakelinrichting voor het onderdrukken van een signaal.
JPS61148905A (ja) * 1984-12-24 1986-07-07 Hitachi Ltd 増幅回路
IT1215247B (it) * 1985-03-13 1990-01-31 Ates Componenti Elettron Dispositivo e procedimento per azzerare un segnale di uscita in un amplificatore a commutazione.
JPS6282751A (ja) * 1985-10-07 1987-04-16 Hitachi Micro Comput Eng Ltd 増幅回路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220126459A (ko) 2021-03-09 2022-09-16 (유)현창기업 생산성 향상을 위해 좌굴변형을 최소화하는 자동용접장치

Also Published As

Publication number Publication date
EP0299665A2 (en) 1989-01-18
EP0299665A3 (en) 1989-11-29
US4853648A (en) 1989-08-01
JP2547781B2 (ja) 1996-10-23
JPS6417510A (en) 1989-01-20
KR900008757B1 (ko) 1990-11-29
MY103749A (en) 1993-09-30

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