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KR880005741A - 증폭기 - Google Patents

증폭기 Download PDF

Info

Publication number
KR880005741A
KR880005741A KR1019870011492A KR870011492A KR880005741A KR 880005741 A KR880005741 A KR 880005741A KR 1019870011492 A KR1019870011492 A KR 1019870011492A KR 870011492 A KR870011492 A KR 870011492A KR 880005741 A KR880005741 A KR 880005741A
Authority
KR
South Korea
Prior art keywords
amplifier
amplifier circuit
common
load
impedance
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.)
Granted
Application number
KR1019870011492A
Other languages
English (en)
Other versions
KR950003996B1 (ko
Inventor
마사노리 후지사와
Original Assignee
상요덴기 가부시기가이샤
이우에 사또시
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 상요덴기 가부시기가이샤, 이우에 사또시 filed Critical 상요덴기 가부시기가이샤
Publication of KR880005741A publication Critical patent/KR880005741A/ko
Application granted granted Critical
Publication of KR950003996B1 publication Critical patent/KR950003996B1/ko
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/213—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only in integrated circuits
    • 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

Landscapes

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

Abstract

내용 없음

Description

증폭기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 한 실시예를 도시한 회로도.
제3도는 본 발명의 다른 실시예를 도시한 회로도.

Claims (1)

  1. 입력 신호를 증폭하는 제1증폭 회로, 및 상기 제1증폭 회로와 입력 직류 바이어스를 공통으로 하고, 부하 임피던스에 대해서 낮은 출력 임피던스를 갖는 제2층폭회로를 갖추고 있고, 상기 제1 및 제2증폭 회로의 출력 사이에 상기 부하가 직접 접속되도록 한 것읕 특징으로 하는 증폭기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870011492A 1986-10-17 1987-10-16 증폭기 Expired - Lifetime KR950003996B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP247933 1986-10-17
JP61247933A JP2680569B2 (ja) 1986-10-17 1986-10-17 増幅器
JP61-247933 1986-10-17

Publications (2)

Publication Number Publication Date
KR880005741A true KR880005741A (ko) 1988-12-23
KR950003996B1 KR950003996B1 (ko) 1995-04-21

Family

ID=17170713

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870011492A Expired - Lifetime KR950003996B1 (ko) 1986-10-17 1987-10-16 증폭기

Country Status (3)

Country Link
US (1) US4801889A (ko)
JP (1) JP2680569B2 (ko)
KR (1) KR950003996B1 (ko)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2516706B2 (ja) * 1990-11-24 1996-07-24 ローム株式会社 アンプ
US5300893A (en) * 1992-03-16 1994-04-05 Zero Impedance Systems, Inc. Amplifier
JP2003047086A (ja) * 2001-07-31 2003-02-14 Yamaha Corp ヘッドフォンアンプ
US7061327B2 (en) * 2002-01-24 2006-06-13 Maxim Integrated Products, Inc. Single supply headphone driver/charge pump combination
GB2387979B (en) * 2002-04-23 2005-05-18 Nec Technologies A connector interface
US8081785B2 (en) * 2006-03-21 2011-12-20 Fairchild Semiconductor Corporation High efficiency converter providing switching amplifier bias
US10778089B2 (en) * 2017-04-07 2020-09-15 Texas Instruments Incorporated Cascaded active electro-magnetic interference filter
US11601045B2 (en) 2019-04-01 2023-03-07 Texas Instruments Incorporated Active electromagnetic interference filter with damping network

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49126244A (ko) * 1973-04-04 1974-12-03
JPS5374822A (en) * 1976-12-16 1978-07-03 Nippon Telegr & Teleph Corp <Ntt> Amplifier circuit
US4254380A (en) * 1979-07-02 1981-03-03 Motorola, Inc. Bridge amplifier
JPS568911A (en) * 1979-07-05 1981-01-29 Toko Inc Btl amplifier

Also Published As

Publication number Publication date
KR950003996B1 (ko) 1995-04-21
JPS63219214A (ja) 1988-09-12
JP2680569B2 (ja) 1997-11-19
US4801889A (en) 1989-01-31

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Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19871016

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Patent event code: PA02012R01D

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