DE69224409D1 - Verstärkerschaltung - Google Patents
VerstärkerschaltungInfo
- Publication number
- DE69224409D1 DE69224409D1 DE69224409T DE69224409T DE69224409D1 DE 69224409 D1 DE69224409 D1 DE 69224409D1 DE 69224409 T DE69224409 T DE 69224409T DE 69224409 T DE69224409 T DE 69224409T DE 69224409 D1 DE69224409 D1 DE 69224409D1
- Authority
- DE
- Germany
- Prior art keywords
- amplifier circuit
- 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 - Lifetime
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
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
- H03F1/0244—Stepped control
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Dc-Dc Converters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3176094A JP2669199B2 (ja) | 1991-06-20 | 1991-06-20 | 増幅回路およびオーディオ信号増幅回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69224409D1 true DE69224409D1 (de) | 1998-03-19 |
DE69224409T2 DE69224409T2 (de) | 1998-09-17 |
Family
ID=16007597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69224409T Expired - Lifetime DE69224409T2 (de) | 1991-06-20 | 1992-06-18 | Verstärkerschaltung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5347230A (de) |
EP (1) | EP0519471B1 (de) |
JP (1) | JP2669199B2 (de) |
DE (1) | DE69224409T2 (de) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0166112B1 (ko) * | 1993-06-30 | 1999-03-20 | 다까노 야스아끼 | 전원 회로 및 증폭 회로 및 혼성 집적 회로 장치 |
US5387876A (en) * | 1993-12-20 | 1995-02-07 | Peavey Electronics Corporation | High efficiency amplifier with reduced switching distortion |
US5543753A (en) * | 1994-06-22 | 1996-08-06 | Carver Corporation | Audio frequency power amplifiers with actively damped filter |
DE19514450A1 (de) * | 1995-04-25 | 1996-10-31 | Thomson Brandt Gmbh | Leistungsverstärker für ein niederfrequentes Signal |
DE19607124A1 (de) * | 1996-02-26 | 1997-08-28 | Cafer Borucu | Steigerung des Wirkungsgrads der Kollektorgrundschaltung |
DE19740137A1 (de) * | 1997-09-12 | 1999-03-18 | Alsthom Cge Alcatel | Verfahren und Schaltungsanordnung zur Rufwechselspannungserzeugung für elektronische Teilnehmerschaltungen |
US6144258A (en) * | 1998-03-27 | 2000-11-07 | Schwenk; Tracy R. | Apparatus and method for amplifying an audio signal without reference to ground |
US6236273B1 (en) * | 1999-11-18 | 2001-05-22 | Pairgain Technologies, Inc. | High efficiency power amplifier |
WO2002005418A2 (en) * | 2000-07-12 | 2002-01-17 | Indigo Manufacturing Inc. | Power amplifier with multiple power supplies |
US6586992B1 (en) * | 2000-10-16 | 2003-07-01 | Globespanvirata, Inc. | System and method for increasing power range in a power amplifier using a single voltage supply |
US6842527B2 (en) | 2000-12-15 | 2005-01-11 | Thomson Licensing, Inc. | Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals |
US6766026B2 (en) | 2000-12-15 | 2004-07-20 | Thomson Licensing, S.A. | Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals |
JP3438138B2 (ja) * | 2001-06-20 | 2003-08-18 | 富士通株式会社 | 伝送路特性の周期的変動に対する等化処理方法及び装置 |
FR2873872B1 (fr) | 2004-07-30 | 2006-10-20 | Avise Sarl E | Amplificateur audio classe ad |
US8238581B2 (en) * | 2005-10-17 | 2012-08-07 | Richard Hofrichter | Powered subwoofer/speaker remote turn-on function |
US8238580B2 (en) * | 2005-10-17 | 2012-08-07 | Richard Hofrichter | Module having a remote turn-on function for use with a powered subwoofer/speaker or other audio/visual electrical equipment |
US7474157B2 (en) * | 2006-07-07 | 2009-01-06 | Sonavox Canada Inc. | Power amplifier |
US8228117B2 (en) * | 2009-07-15 | 2012-07-24 | Freescale Semiconductor, Inc. | Quiet power up and power down of closed loop digital PWM modulators |
US8482346B2 (en) | 2010-06-14 | 2013-07-09 | Harman International Industries, Incorporated | High efficiency balanced output amplifier system |
US8497734B2 (en) | 2010-06-14 | 2013-07-30 | Harman International Industries, Incorporated | High efficiency audio amplifier system |
JP5229291B2 (ja) | 2010-09-29 | 2013-07-03 | ブラザー工業株式会社 | 地図作成装置および地図作成プログラム |
JP5554842B2 (ja) * | 2010-11-17 | 2014-07-23 | 株式会社日立製作所 | 高周波増幅器 |
WO2012066659A1 (ja) * | 2010-11-17 | 2012-05-24 | 株式会社日立製作所 | 高周波増幅器及びそれを用いた高周波モジュール並びに無線機 |
JP2013066100A (ja) * | 2011-09-20 | 2013-04-11 | Hitachi Kokusai Electric Inc | 電源回路 |
JP5822683B2 (ja) * | 2011-11-25 | 2015-11-24 | 株式会社日立国際電気 | 電源回路 |
CN107291132B (zh) * | 2016-04-13 | 2019-05-14 | 钜泉光电科技(上海)股份有限公司 | 一种pa限流电路 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52112261A (en) * | 1976-03-18 | 1977-09-20 | Nippon Gakki Seizo Kk | Power amplifier circuit |
US4378530A (en) * | 1979-07-04 | 1983-03-29 | Unisearch Limited | High-efficiency low-distortion amplifier |
JPS56104510A (en) * | 1980-01-24 | 1981-08-20 | Nippon Gakki Seizo Kk | Electric power amplifier |
US4472687A (en) * | 1980-12-24 | 1984-09-18 | Tokyo Shibaura Denki Kabushiki Kaisha | Audio power amplifier for supplying electric power to a load by switching of power supply voltage |
NL8104914A (nl) * | 1981-10-30 | 1983-05-16 | Philips Nv | Versterker met signaalafhankelijke voedingsspanningsbron. |
JPS5879309A (ja) * | 1981-11-06 | 1983-05-13 | Pioneer Electronic Corp | 増幅器の電源供給回路 |
JPS58111507A (ja) * | 1981-12-25 | 1983-07-02 | Nippon Gakki Seizo Kk | 電力増幅器 |
US4516080A (en) * | 1982-04-01 | 1985-05-07 | Unisearch Limited | High-efficiency low distortion parallel amplifier |
GB2117990B (en) * | 1982-04-01 | 1985-11-20 | Unisearch Ltd | Feed-forward amplifier |
JPH0249212A (ja) * | 1988-08-10 | 1990-02-19 | Hitachi Ltd | 薄膜磁気ヘッド |
-
1991
- 1991-06-20 JP JP3176094A patent/JP2669199B2/ja not_active Expired - Lifetime
-
1992
- 1992-06-17 US US07/900,194 patent/US5347230A/en not_active Expired - Lifetime
- 1992-06-18 EP EP92110317A patent/EP0519471B1/de not_active Expired - Lifetime
- 1992-06-18 DE DE69224409T patent/DE69224409T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0519471A1 (de) | 1992-12-23 |
JPH04372212A (ja) | 1992-12-25 |
JP2669199B2 (ja) | 1997-10-27 |
US5347230A (en) | 1994-09-13 |
DE69224409T2 (de) | 1998-09-17 |
EP0519471B1 (de) | 1998-02-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
R071 | Expiry of right |
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