FR2966994B1 - Amplificateur audio class-d pwm combine avec un elevateur de tension et avec controle de dissipation. - Google Patents
Amplificateur audio class-d pwm combine avec un elevateur de tension et avec controle de dissipation. Download PDFInfo
- Publication number
- FR2966994B1 FR2966994B1 FR1004286A FR1004286A FR2966994B1 FR 2966994 B1 FR2966994 B1 FR 2966994B1 FR 1004286 A FR1004286 A FR 1004286A FR 1004286 A FR1004286 A FR 1004286A FR 2966994 B1 FR2966994 B1 FR 2966994B1
- Authority
- FR
- France
- Prior art keywords
- audio amplifier
- dissipation control
- amplifier class
- voltage elevator
- pwm combined
- 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
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
- H03F3/217—Class D power amplifiers; Switching amplifiers
- H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
-
- 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
- H03F1/0216—Continuous control
- H03F1/0222—Continuous control by using a signal derived from the input signal
- H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
-
- 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
- H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
-
- 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
- H03F1/303—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device
-
- 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
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/351—Pulse width modulation being used in an amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/372—Noise reduction and elimination in amplifier
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1004286A FR2966994B1 (fr) | 2010-11-02 | 2010-11-02 | Amplificateur audio class-d pwm combine avec un elevateur de tension et avec controle de dissipation. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1004286A FR2966994B1 (fr) | 2010-11-02 | 2010-11-02 | Amplificateur audio class-d pwm combine avec un elevateur de tension et avec controle de dissipation. |
FR1004286 | 2010-11-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2966994A1 FR2966994A1 (fr) | 2012-05-04 |
FR2966994B1 true FR2966994B1 (fr) | 2018-01-26 |
Family
ID=43638567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1004286A Expired - Fee Related FR2966994B1 (fr) | 2010-11-02 | 2010-11-02 | Amplificateur audio class-d pwm combine avec un elevateur de tension et avec controle de dissipation. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2966994B1 (fr) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002223132A (ja) * | 2001-01-29 | 2002-08-09 | Niigata Seimitsu Kk | 音声再生装置および方法 |
WO2003021769A1 (fr) * | 2001-09-04 | 2003-03-13 | Shindengen Electric Manufacturing Co., Ltd. | Appareil d'amplification de commutation |
JP2008047945A (ja) * | 2005-03-28 | 2008-02-28 | Nec Saitama Ltd | アンプ装置 |
CN101443999B (zh) * | 2006-05-15 | 2012-07-25 | 旭化成电子材料元件株式会社 | 驱动装置、驱动方法及信息设备 |
US8311243B2 (en) * | 2006-08-21 | 2012-11-13 | Cirrus Logic, Inc. | Energy-efficient consumer device audio power output stage |
CN101529717B (zh) * | 2006-10-26 | 2012-07-04 | Nxp股份有限公司 | 升压级 |
JP5202354B2 (ja) * | 2009-01-22 | 2013-06-05 | キヤノン株式会社 | D級増幅装置 |
-
2010
- 2010-11-02 FR FR1004286A patent/FR2966994B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2966994A1 (fr) | 2012-05-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 6 |
|
PLFP | Fee payment |
Year of fee payment: 7 |
|
ST | Notification of lapse |
Effective date: 20180731 |