CN106575952B - 音频放大器 - Google Patents
音频放大器 Download PDFInfo
- Publication number
- CN106575952B CN106575952B CN201580041525.2A CN201580041525A CN106575952B CN 106575952 B CN106575952 B CN 106575952B CN 201580041525 A CN201580041525 A CN 201580041525A CN 106575952 B CN106575952 B CN 106575952B
- Authority
- CN
- China
- Prior art keywords
- current
- output
- voltage generator
- power
- generator
- 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.)
- Active
Links
- 230000008878 coupling Effects 0.000 claims abstract description 55
- 238000010168 coupling process Methods 0.000 claims abstract description 55
- 238000005859 coupling reaction Methods 0.000 claims abstract description 55
- 230000005236 sound signal Effects 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- 230000003321 amplification Effects 0.000 description 10
- 238000003199 nucleic acid amplification method Methods 0.000 description 10
- 230000004069 differentiation Effects 0.000 description 6
- 230000010354 integration Effects 0.000 description 4
- 230000005291 magnetic effect Effects 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000750042 Vini Species 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Images
Classifications
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- 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
-
- 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
-
- 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
- H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
-
- 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
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
-
- 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
- H03F3/217—Class D power amplifiers; Switching 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
- H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45281—One SEPP output stage being added to the differential amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1455935 | 2014-06-25 | ||
| FR1455935A FR3023088B1 (fr) | 2014-06-25 | 2014-06-25 | Amplificateur audio |
| PCT/EP2015/064383 WO2015197764A1 (fr) | 2014-06-25 | 2015-06-25 | Amplificateur audio |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106575952A CN106575952A (zh) | 2017-04-19 |
| CN106575952B true CN106575952B (zh) | 2020-04-03 |
Family
ID=52016662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580041525.2A Active CN106575952B (zh) | 2014-06-25 | 2015-06-25 | 音频放大器 |
Country Status (9)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3726730B1 (en) * | 2019-04-17 | 2021-08-25 | Goodix Technology (HK) Company Limited | Peak current limiter |
| CN113489465B (zh) * | 2021-07-22 | 2023-09-29 | 苏州瀚宸科技有限公司 | 一种放大器电路 |
| FR3132605B1 (fr) * | 2022-02-04 | 2024-02-09 | Devialet | Amplificateur audio |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1217864A (zh) * | 1997-02-24 | 1999-05-26 | 韩国科学技术院 | 与数字放大器结合的高保真和高效率的模拟放大器 |
| CN1337089A (zh) * | 1999-01-12 | 2002-02-20 | 艾恩德霍芬技术大学 | 放大器电路 |
| WO2009090065A1 (de) * | 2008-01-18 | 2009-07-23 | Austriamicrosystems Ag | Verstärkeranordnung und verfahren |
| CN103004083A (zh) * | 2010-03-02 | 2013-03-27 | 帝瓦雷公司 | 极高保真度的音频放大器 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6052607B2 (ja) * | 1979-05-10 | 1985-11-20 | ヤマハ株式会社 | 増幅器 |
| KR100215394B1 (ko) * | 1996-09-02 | 1999-08-16 | 양계승 | 3중 부궤환 d급 음향증폭기 |
| US5905407A (en) * | 1997-07-30 | 1999-05-18 | Motorola, Inc. | High efficiency power amplifier using combined linear and switching techniques with novel feedback system |
| KR100334889B1 (ko) * | 1999-07-09 | 2002-05-09 | 조규형 | 다중 결합 선형 전력 증폭기 |
| EP2180594A1 (en) * | 2002-12-17 | 2010-04-28 | ASK Industries S.p.A. | Audio power amplifier |
| JP2006279509A (ja) * | 2005-03-29 | 2006-10-12 | Sony Corp | アンプ出力制御装置、オーディオ装置及びアンプ出力制御方法 |
| US8497734B2 (en) * | 2010-06-14 | 2013-07-30 | Harman International Industries, Incorporated | High efficiency audio amplifier system |
| US8451057B2 (en) * | 2011-11-02 | 2013-05-28 | Wen-Hsiung Hsieh | Switching amplifier using inductor current feedback |
-
2014
- 2014-06-25 FR FR1455935A patent/FR3023088B1/fr active Active
-
2015
- 2015-06-25 EP EP15731914.6A patent/EP3161959A1/fr active Pending
- 2015-06-25 US US15/322,311 patent/US10158326B2/en active Active
- 2015-06-25 BR BR112016030591-4A patent/BR112016030591B1/pt active IP Right Grant
- 2015-06-25 KR KR1020177002402A patent/KR102466908B1/ko active IP Right Grant
- 2015-06-25 JP JP2016575557A patent/JP6925695B2/ja active Active
- 2015-06-25 WO PCT/EP2015/064383 patent/WO2015197764A1/fr active Application Filing
- 2015-06-25 CN CN201580041525.2A patent/CN106575952B/zh active Active
- 2015-06-25 CA CA2953801A patent/CA2953801C/fr active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1217864A (zh) * | 1997-02-24 | 1999-05-26 | 韩国科学技术院 | 与数字放大器结合的高保真和高效率的模拟放大器 |
| CN1337089A (zh) * | 1999-01-12 | 2002-02-20 | 艾恩德霍芬技术大学 | 放大器电路 |
| WO2009090065A1 (de) * | 2008-01-18 | 2009-07-23 | Austriamicrosystems Ag | Verstärkeranordnung und verfahren |
| CN103004083A (zh) * | 2010-03-02 | 2013-03-27 | 帝瓦雷公司 | 极高保真度的音频放大器 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017525264A (ja) | 2017-08-31 |
| CA2953801C (fr) | 2023-07-25 |
| KR102466908B1 (ko) | 2022-11-11 |
| BR112016030591A2 (US07709020-20100504-C00068.png) | 2017-08-22 |
| CN106575952A (zh) | 2017-04-19 |
| US10158326B2 (en) | 2018-12-18 |
| BR112016030591B1 (pt) | 2022-08-23 |
| CA2953801A1 (fr) | 2015-12-30 |
| US20170214365A1 (en) | 2017-07-27 |
| FR3023088B1 (fr) | 2016-07-22 |
| FR3023088A1 (fr) | 2016-01-01 |
| EP3161959A1 (fr) | 2017-05-03 |
| KR20170023166A (ko) | 2017-03-02 |
| JP6925695B2 (ja) | 2021-08-25 |
| WO2015197764A1 (fr) | 2015-12-30 |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |