KR100340193B1 - 전력 증폭 회로 - Google Patents

전력 증폭 회로 Download PDF

Info

Publication number
KR100340193B1
KR100340193B1 KR1019990007047A KR19990007047A KR100340193B1 KR 100340193 B1 KR100340193 B1 KR 100340193B1 KR 1019990007047 A KR1019990007047 A KR 1019990007047A KR 19990007047 A KR19990007047 A KR 19990007047A KR 100340193 B1 KR100340193 B1 KR 100340193B1
Authority
KR
South Korea
Prior art keywords
output
power supply
power
amplifier
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.)
Expired - Fee Related
Application number
KR1019990007047A
Other languages
English (en)
Korean (ko)
Other versions
KR19990077573A (ko
Inventor
구사카베히로미
츠루미히로유키
Original Assignee
니시무로 타이죠
가부시끼가이샤 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.)
Filing date
Publication date
Application filed by 니시무로 타이죠, 가부시끼가이샤 도시바 filed Critical 니시무로 타이죠
Publication of KR19990077573A publication Critical patent/KR19990077573A/ko
Application granted granted Critical
Publication of KR100340193B1 publication Critical patent/KR100340193B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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
    • H03F1/0277—Selecting one or more amplifiers from a plurality of amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
  • Stereophonic System (AREA)
KR1019990007047A 1998-03-31 1999-03-04 전력 증폭 회로 Expired - Fee Related KR100340193B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP08707598A JP3881448B2 (ja) 1998-03-31 1998-03-31 電力増幅回路
JP98-087075 1998-03-31

Publications (2)

Publication Number Publication Date
KR19990077573A KR19990077573A (ko) 1999-10-25
KR100340193B1 true KR100340193B1 (ko) 2002-06-12

Family

ID=13904837

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019990007047A Expired - Fee Related KR100340193B1 (ko) 1998-03-31 1999-03-04 전력 증폭 회로

Country Status (3)

Country Link
US (1) US6107886A (cg-RX-API-DMAC10.html)
JP (1) JP3881448B2 (cg-RX-API-DMAC10.html)
KR (1) KR100340193B1 (cg-RX-API-DMAC10.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7489189B2 (en) 2006-01-13 2009-02-10 Samsung Electronics Co., Ltd. Power amplifier circuit reducing electromagnetic interference

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003536339A (ja) * 2000-06-23 2003-12-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ デュアルブリッジ増幅器
US7167569B1 (en) * 2000-10-25 2007-01-23 National Semiconductor Corporation Output coupling capacitor free audio power amplifier dynamically configured for speakers and headphones with excellent click and pop performance
JP2002345064A (ja) * 2001-05-21 2002-11-29 Niigata Seimitsu Kk 音声出力アンプ
JP2002345078A (ja) * 2001-05-21 2002-11-29 Niigata Seimitsu Kk 音声出力アンプ
US6621349B2 (en) * 2001-11-07 2003-09-16 International Business Machines Corporation Power supply noise compensation amplifier
US6590447B1 (en) 2002-04-02 2003-07-08 Bae Systems Information And Electronic Systems Integration Inc. Precision bridge amplifier
US7023983B2 (en) * 2003-12-30 2006-04-04 Qualcomm Incorporated Versatile circuit for interfacing with audio headsets
JP4393245B2 (ja) 2004-03-30 2010-01-06 株式会社東芝 電力増幅器
US7359686B2 (en) * 2005-02-16 2008-04-15 Microtune (Texas), L.P. Radio-frequency amplifier system
US7548178B2 (en) * 2006-03-10 2009-06-16 Nvidia Corporation Method and apparatus for ADC size and performance optimization
US9300261B2 (en) * 2006-03-10 2016-03-29 Nvidia Corporation Method and apparatus for efficient load biasing
US8081777B2 (en) 2006-03-21 2011-12-20 Fairchild Semiconductor Corporation Volume-based adaptive biasing
US20070236295A1 (en) * 2006-03-21 2007-10-11 Leadis Technology, Inc. FM Power Amplifier With Antenna Power Control
US7408414B2 (en) * 2006-03-21 2008-08-05 Leadis Technology, Inc. Distributed class G type amplifier switching method
US8081785B2 (en) 2006-03-21 2011-12-20 Fairchild Semiconductor Corporation High efficiency converter providing switching amplifier bias
US20070285176A1 (en) * 2006-03-21 2007-12-13 Leadis Technology, Inc. Phase-Slipping Phase-Locked Loop
US7498880B2 (en) * 2006-03-21 2009-03-03 Leadis Technology, Inc. Class L amplifier
US7522433B2 (en) * 2006-03-21 2009-04-21 Fairchild Semiconductor Corporation Efficient voltage rail generation
US8179372B1 (en) 2007-10-01 2012-05-15 Integrated Device Technology, Inc. Electronic display with array context-sensitive search (ACS) technology
US7733178B1 (en) 2007-10-24 2010-06-08 Fairchild Semiconductor Corporation High efficiency audio amplifier
US7750732B1 (en) 2007-12-04 2010-07-06 Fairchild Semiconductor Corporation Adaptive rail amplifier (ARA) technology
KR101120629B1 (ko) 2008-04-18 2012-03-19 페어차일드 세미컨덕터 코포레이션 증폭기 전류 구동 반전
US8233301B1 (en) 2008-12-20 2012-07-31 Sensorlink Corporation Impedance dropping dc power supply having an impedance controlled converter
US8212620B2 (en) * 2009-08-28 2012-07-03 Rockford Corporation Boosted-rail amplifier
JP5498998B2 (ja) 2011-08-12 2014-05-21 株式会社東芝 電力増幅回路
ITMI20121624A1 (it) * 2012-09-28 2014-03-29 St Microelectronics Srl Amplificatore in classe "g" e sistema audio impiegante l'amplificatore
JP6360453B2 (ja) 2015-03-16 2018-07-18 株式会社東芝 電力増幅装置
KR20160142034A (ko) * 2015-06-02 2016-12-12 삼성전자주식회사 음성처리장치 및 그 제어방법
US9729177B2 (en) * 2015-09-30 2017-08-08 Skyworks Solutions, Inc. Power amplifier die configurations having reduced radiated emissions
JP6866637B2 (ja) * 2016-12-27 2021-04-28 ヤマハ株式会社 増幅器
JP7288415B2 (ja) 2020-03-23 2023-06-07 株式会社東芝 電力増幅装置
CN112421962B (zh) * 2020-11-03 2022-04-05 深圳第三代半导体研究院 一种具有部分功率调节功能的两级dc-dc变换器
EP4047802A1 (en) * 2021-02-17 2022-08-24 Schaffner EMV AG Emi active filter
JP7657687B2 (ja) 2021-09-22 2025-04-07 株式会社東芝 電力増幅装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10135751A (ja) * 1996-10-31 1998-05-22 Sanyo Electric Co Ltd 電力増幅装置
JPH11136048A (ja) * 1997-10-31 1999-05-21 Sanyo Electric Co Ltd Ｂｔｌ増幅回路
JPH11136039A (ja) * 1997-10-31 1999-05-21 Sanyo Electric Co Ltd 電力増幅装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5479134A (en) * 1993-09-20 1995-12-26 Rohm Co., Ltd. Power amplifier circuit for audio signal and audio device using the same
EP0706260B1 (en) * 1994-10-07 2002-01-16 STMicroelectronics S.r.l. High efficiency bridge amplifier
DE19525411A1 (de) * 1995-07-12 1997-01-16 Philips Patentverwaltung Signalverstärker
JPH10150334A (ja) * 1996-11-19 1998-06-02 Sanyo Electric Co Ltd 電力増幅装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10135751A (ja) * 1996-10-31 1998-05-22 Sanyo Electric Co Ltd 電力増幅装置
JPH11136048A (ja) * 1997-10-31 1999-05-21 Sanyo Electric Co Ltd Ｂｔｌ増幅回路
JPH11136039A (ja) * 1997-10-31 1999-05-21 Sanyo Electric Co Ltd 電力増幅装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7489189B2 (en) 2006-01-13 2009-02-10 Samsung Electronics Co., Ltd. Power amplifier circuit reducing electromagnetic interference

Also Published As

Publication number Publication date
US6107886A (en) 2000-08-22
KR19990077573A (ko) 1999-10-25
JPH11284450A (ja) 1999-10-15
JP3881448B2 (ja) 2007-02-14

Similar Documents

Publication Publication Date Title
JP3881448B2 (ja) 電力増幅回路
JP3459442B2 (ja) 差動増幅回路及びそれを用いた電力増幅装置
US9602070B2 (en) Power amplifying device
US6917242B2 (en) Power amplifier
US4472687A (en) Audio power amplifier for supplying electric power to a load by switching of power supply voltage
US4087759A (en) Power amplifier devices
US11171617B2 (en) Power amplifying device and audio equipment
US4987352A (en) Brushless motor driver
JPS59186407A (ja) 帰還増幅器
US3987369A (en) Direct-coupled FET amplifier
US4241314A (en) Transistor amplifier circuits
US4068187A (en) Audio-frequency power amplifiers
KR100499850B1 (ko) 전력증폭장치
JP2753205B2 (ja) 増幅器
US7408141B2 (en) Light-receiving amplifier circuit and optical pick-up device using the same
KR100528107B1 (ko) 전력증폭장치
JPH11136039A (ja) 電力増幅装置
US7138867B2 (en) Balanced variable gain amplifier capable of achieving performance by low source voltage
US4520322A (en) Power amplifier having improved power supply circuit
US4357579A (en) Power amplifier
JP2739952B2 (ja) オーディオ増幅回路
JP2010056643A (ja) モータドライバ回路
JPH0233384Y2 (cg-RX-API-DMAC10.html)
JP2006128916A (ja) 電力増幅回路および電力増幅器
JP3423444B2 (ja) オーディオ信号電力増幅回路およびこれを用いるオーディオ装置

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

St.27 status event code: A-0-1-A10-A12-nap-PA0109

PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

D13-X000 Search requested

St.27 status event code: A-1-2-D10-D13-srh-X000

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

D14-X000 Search report completed

St.27 status event code: A-1-2-D10-D14-srh-X000

R18-X000 Changes to party contact information recorded

St.27 status event code: A-3-3-R10-R18-oth-X000

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

St.27 status event code: A-1-2-D10-D22-exm-PE0701

GRNT Written decision to grant
PR0701 Registration of establishment

St.27 status event code: A-2-4-F10-F11-exm-PR0701

PR1002 Payment of registration fee

St.27 status event code: A-2-2-U10-U11-oth-PR1002

Fee payment year number: 1

PG1601 Publication of registration

St.27 status event code: A-4-4-Q10-Q13-nap-PG1601

LAPS Lapse due to unpaid annual fee
PC1903 Unpaid annual fee

St.27 status event code: A-4-4-U10-U13-oth-PC1903

Not in force date: 20050529

Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

PC1903 Unpaid annual fee

St.27 status event code: N-4-6-H10-H13-oth-PC1903

Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

Not in force date: 20050529

R18 Changes to party contact information recorded

Free format text: ST27 STATUS EVENT CODE: A-5-5-R10-R18-OTH-X000 (AS PROVIDED BY THE NATIONAL OFFICE)

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000