DE602005015176D1 - Geschalteter Leistungsverstärker und Verfahren zur Verstärkung eines digitalen Signals - Google Patents
Geschalteter Leistungsverstärker und Verfahren zur Verstärkung eines digitalen SignalsInfo
- Publication number
- DE602005015176D1 DE602005015176D1 DE602005015176T DE602005015176T DE602005015176D1 DE 602005015176 D1 DE602005015176 D1 DE 602005015176D1 DE 602005015176 T DE602005015176 T DE 602005015176T DE 602005015176 T DE602005015176 T DE 602005015176T DE 602005015176 D1 DE602005015176 D1 DE 602005015176D1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- amplifying
- power amplifier
- generate
- digital signal
- 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
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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/331—Sigma delta modulation being used in an amplifying circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62262504P | 2004-10-28 | 2004-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE602005015176D1 true DE602005015176D1 (de) | 2009-08-13 |
Family
ID=35788961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE602005015176T Active DE602005015176D1 (de) | 2004-10-28 | 2005-09-09 | Geschalteter Leistungsverstärker und Verfahren zur Verstärkung eines digitalen Signals |
Country Status (4)
Country | Link |
---|---|
US (1) | US7276963B2 (de) |
EP (1) | EP1653604B1 (de) |
AT (1) | ATE435521T1 (de) |
DE (1) | DE602005015176D1 (de) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4802765B2 (ja) * | 2005-03-18 | 2011-10-26 | ヤマハ株式会社 | D級増幅器 |
KR101001115B1 (ko) * | 2005-06-27 | 2010-12-14 | 퀄컴 인코포레이티드 | 각종 증폭 관련 동작을 수행하기 위해 증폭기를 구현 및이용하는 방법 및 장치 |
US7822800B2 (en) * | 2006-05-19 | 2010-10-26 | Camco Produktions-Und Vertriebs Gmbh Fur Beschallungs-Und Beleuchtungsanlagen | Apparatus and method for performing a calculation operation |
ATE525803T1 (de) * | 2006-05-19 | 2011-10-15 | Camco Prod & Vertriebs Gmbh | Vorrichtung und verfahren zur durchführung von rechenoperationen |
DE102007015008B4 (de) * | 2007-03-28 | 2016-12-15 | Infineon Technologies Ag | Digitaler Verstärker und Verfahren zum Verstärken eines digitalen Eingangssignals |
US20090237959A1 (en) * | 2008-03-20 | 2009-09-24 | Eric Soenen | Digital Control of Power Converters |
EP2304455B1 (de) * | 2008-07-11 | 2019-03-06 | Koninklijke Philips N.V. | Digitalverstärker mit feedforward- und feedback-steuerung |
KR20100008749A (ko) * | 2008-07-16 | 2010-01-26 | 삼성전자주식회사 | 스위칭 파워 증폭 장치 및 그 제어 방법 |
US20100045376A1 (en) * | 2008-08-25 | 2010-02-25 | Eric Soenen | Class d amplifier control circuit and method |
US8040181B2 (en) * | 2009-06-30 | 2011-10-18 | Maxim Integrated Products, Inc. | Time delay compensation and pulse width correction |
US8571237B2 (en) * | 2009-07-02 | 2013-10-29 | Amp'd PC Technologies, LLC | Multi-zone audio amplification system for multimedia |
WO2011070952A1 (ja) * | 2009-12-08 | 2011-06-16 | 日本電気株式会社 | 送信装置 |
EP2613438B1 (de) * | 2010-08-30 | 2016-04-06 | Panasonic Intellectual Property Management Co., Ltd. | Verstärker |
US8441235B2 (en) | 2011-01-31 | 2013-05-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Battery charger digital control circuit and method |
JP5927545B2 (ja) * | 2011-03-28 | 2016-06-01 | パナソニックIpマネジメント株式会社 | 増幅器および増幅器を備えた音響装置 |
US8792578B2 (en) * | 2011-05-27 | 2014-07-29 | Alcatel Lucent | Method and apparatus of switched amplification having improved efficiency |
DE102012104488A1 (de) | 2012-05-24 | 2013-11-28 | Hochschule für angewandte Wissenschaften München | Geschalteter Verstärker für variable Versorgungsspannung |
CN103944521B (zh) * | 2014-04-24 | 2017-10-17 | 佛山市顺德区龙睿电子科技有限公司 | 一种电流喷射式音频功率放大器 |
US9362888B2 (en) * | 2014-08-28 | 2016-06-07 | Qualcomm Technologies International, Ltd. | Devices and methods for converting digital signals |
GB2529691B (en) | 2014-08-29 | 2018-03-21 | Cirrus Logic Int Semiconductor Ltd | Class D amplifier circuit |
US9866180B2 (en) * | 2015-05-08 | 2018-01-09 | Cirrus Logic, Inc. | Amplifiers |
US10218312B2 (en) | 2016-02-29 | 2019-02-26 | Qualcomm Incorporated | Dynamic volume management in audio amplifiers |
US10256777B2 (en) * | 2016-02-29 | 2019-04-09 | Qualcomm Incorporated | Audio amplifiers |
JP6994656B2 (ja) * | 2019-08-27 | 2022-01-14 | パナソニックIpマネジメント株式会社 | 信号処理装置及び調整方法 |
US12003222B2 (en) | 2021-08-13 | 2024-06-04 | Texas Instruments Incorporated | Methods and apparatus to generate a modulation protocol to output audio |
WO2023055626A1 (en) * | 2021-09-30 | 2023-04-06 | Texas Instruments Incorporated | Switching amplifier having linear transition totem pole modulation |
US11996866B2 (en) * | 2022-03-21 | 2024-05-28 | xMEMS Labs, Inc. | Feedback control system achieving high performance via density modulation |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4724396A (en) * | 1984-08-21 | 1988-02-09 | Peavey Electronics Corporation | Digital audio amplifier |
US5559467A (en) * | 1995-01-27 | 1996-09-24 | The Regents Of The University Of California | Digital, pulse width modulation audio power amplifier with noise and ripple shaping |
CA2285355C (en) | 1997-04-02 | 2004-06-08 | Karsten Nielsen | Pulse referenced control method for enhanced power amplification of a pulse modulated signal |
US6414614B1 (en) * | 1999-02-23 | 2002-07-02 | Cirrus Logic, Inc. | Power output stage compensation for digital output amplifiers |
US6466087B2 (en) * | 2000-12-28 | 2002-10-15 | Nokia Mobile Phones, Ltd. | Method and apparatus providing digital error correction for a class D power stage |
SE520530C2 (sv) * | 2001-04-26 | 2003-07-22 | Ericsson Telefon Ab L M | Linjäriserad omkopplarbaserad effektförstärkare |
US6504427B2 (en) * | 2001-05-31 | 2003-01-07 | Motorola, Inc. | Switching amplifier having digital correction and method therefor |
US6404280B1 (en) * | 2001-06-01 | 2002-06-11 | Constel Signal Processing Co., Ltd. | Method and system for low-distortion power amplification |
US6646502B1 (en) * | 2002-08-06 | 2003-11-11 | National Semiconductor Corporation | Digital-input class-D amplifier |
AU2003272025A1 (en) * | 2002-11-22 | 2004-06-18 | Koninklijke Philips Electronics N.V. | Pulse width-modulated noise shaper |
US6741123B1 (en) * | 2002-12-26 | 2004-05-25 | Cirrus Logic, Inc. | Delta-sigma amplifiers with output stage supply voltage variation compensation and methods and digital amplifier systems using the same |
US6998911B2 (en) * | 2003-12-18 | 2006-02-14 | International Rectifier Corporation | Gate control circuit with soft start/stop function |
-
2005
- 2005-09-09 EP EP05019720A patent/EP1653604B1/de active Active
- 2005-09-09 US US11/221,765 patent/US7276963B2/en not_active Expired - Fee Related
- 2005-09-09 DE DE602005015176T patent/DE602005015176D1/de active Active
- 2005-09-09 AT AT05019720T patent/ATE435521T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1653604B1 (de) | 2009-07-01 |
ATE435521T1 (de) | 2009-07-15 |
US7276963B2 (en) | 2007-10-02 |
EP1653604A1 (de) | 2006-05-03 |
US20060091945A1 (en) | 2006-05-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |