DE69522092D1 - Klasse-D Verstärker mit einpoliger negativer Rückkopplung - Google Patents
Klasse-D Verstärker mit einpoliger negativer RückkopplungInfo
- Publication number
- DE69522092D1 DE69522092D1 DE69522092T DE69522092T DE69522092D1 DE 69522092 D1 DE69522092 D1 DE 69522092D1 DE 69522092 T DE69522092 T DE 69522092T DE 69522092 T DE69522092 T DE 69522092T DE 69522092 D1 DE69522092 D1 DE 69522092D1
- Authority
- DE
- Germany
- Prior art keywords
- amplifier
- class
- negative feedback
- pole negative
- pole
- 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
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
- H03F1/083—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements in transistor 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
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95830063A EP0730344B1 (de) | 1995-02-28 | 1995-02-28 | Klasse-D Verstärker mit einpoliger negativer Rückkopplung |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69522092D1 true DE69522092D1 (de) | 2001-09-13 |
DE69522092T2 DE69522092T2 (de) | 2002-04-11 |
Family
ID=8221860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69522092T Expired - Fee Related DE69522092T2 (de) | 1995-02-28 | 1995-02-28 | Klasse-D Verstärker mit einpoliger negativer Rückkopplung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5796302A (de) |
EP (1) | EP0730344B1 (de) |
JP (1) | JPH08265059A (de) |
DE (1) | DE69522092T2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6545533B2 (en) | 2000-12-18 | 2003-04-08 | Texas Instruments Incorporated | Class D audio speaker amplifier circuit with pseudo noise modulation |
JPWO2003005570A1 (ja) * | 2001-07-03 | 2004-10-28 | 新潟精密株式会社 | 音声再生装置および方法、オーディオアンプ、オーディオアンプ用集積回路 |
DE10300195A1 (de) * | 2003-01-08 | 2004-07-22 | Althoff, Jürgen, Dipl.-Ing. | Class D Röhrenverstärker |
US7046727B2 (en) | 2004-05-05 | 2006-05-16 | Monolithic Power Systems, Inc. | Method and apparatus for self-oscillating differential feedback class-D amplifier |
US7554391B1 (en) | 2008-01-11 | 2009-06-30 | Freescale Semiconductor, Inc. | Amplifier having a virtual ground and method thereof |
US8553909B2 (en) | 2011-04-29 | 2013-10-08 | Smsc Holdings S.A.R.L. | Low-power class D amplifier using multistate analog feedback loops |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3537022A (en) * | 1968-01-10 | 1970-10-27 | Hewlett Packard Co | Signal translating circuit |
US4403196A (en) * | 1981-04-22 | 1983-09-06 | The United States Of America As Represented By The Secretary Of The Air Force | Pulse width modulated power amplifier with differential connecting line voltage drop comparators |
US5218315A (en) * | 1992-01-06 | 1993-06-08 | Infinity Systems, Inc. | Switching amplifier |
-
1995
- 1995-02-28 DE DE69522092T patent/DE69522092T2/de not_active Expired - Fee Related
- 1995-02-28 EP EP95830063A patent/EP0730344B1/de not_active Expired - Lifetime
-
1996
- 1996-02-23 JP JP8036515A patent/JPH08265059A/ja active Pending
- 1996-02-27 US US08/607,601 patent/US5796302A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5796302A (en) | 1998-08-18 |
DE69522092T2 (de) | 2002-04-11 |
JPH08265059A (ja) | 1996-10-11 |
EP0730344B1 (de) | 2001-08-08 |
EP0730344A1 (de) | 1996-09-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |