DK0935846T3 - Pulsmodulations-effektforstærker med forstærket kaskadestyringsmetode - Google Patents
Pulsmodulations-effektforstærker med forstærket kaskadestyringsmetodeInfo
- Publication number
- DK0935846T3 DK0935846T3 DK97910272T DK97910272T DK0935846T3 DK 0935846 T3 DK0935846 T3 DK 0935846T3 DK 97910272 T DK97910272 T DK 97910272T DK 97910272 T DK97910272 T DK 97910272T DK 0935846 T3 DK0935846 T3 DK 0935846T3
- Authority
- DK
- Denmark
- Prior art keywords
- pulse modulation
- control method
- power amplifier
- modulation power
- cascade control
- Prior art date
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
- 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
- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK121496 | 1996-10-31 | ||
PCT/DK1997/000497 WO1998019391A2 (en) | 1996-10-31 | 1997-10-31 | Pulse modulation power amplifier with enhanced cascade control method |
Publications (1)
Publication Number | Publication Date |
---|---|
DK0935846T3 true DK0935846T3 (da) | 2004-03-22 |
Family
ID=8102265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK97910272T DK0935846T3 (da) | 1996-10-31 | 1997-10-31 | Pulsmodulations-effektforstærker med forstærket kaskadestyringsmetode |
Country Status (13)
Country | Link |
---|---|
US (1) | US6297692B1 (zh) |
EP (2) | EP1376858B1 (zh) |
JP (1) | JP3346579B2 (zh) |
KR (1) | KR100394846B1 (zh) |
CN (1) | CN1123115C (zh) |
AT (2) | ATE255784T1 (zh) |
AU (1) | AU734813B2 (zh) |
CA (1) | CA2271041C (zh) |
DE (2) | DE69726592T2 (zh) |
DK (1) | DK0935846T3 (zh) |
ES (1) | ES2212082T3 (zh) |
PT (1) | PT935846E (zh) |
WO (1) | WO1998019391A2 (zh) |
Families Citing this family (69)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4097700B2 (ja) | 1996-03-28 | 2008-06-11 | テキサス インストルメンツ デンマーク エイ/エス | Pcm信号のupwm信号への変換方法 |
US6788792B1 (en) * | 1998-06-26 | 2004-09-07 | Yamaha Corporation | Device for amplitude adjustment and rectification made with MOS technology |
US7215191B2 (en) * | 1998-06-26 | 2007-05-08 | Yamaha Corporation | Device for amplitude adjustment and rectification made with MOS technology |
US6414614B1 (en) * | 1999-02-23 | 2002-07-02 | Cirrus Logic, Inc. | Power output stage compensation for digital output amplifiers |
US6351184B1 (en) * | 1999-07-29 | 2002-02-26 | Tripath Technology, Inc. | Dynamic switching frequency control for a digital switching amplifier |
FI107659B (fi) * | 1999-11-26 | 2001-09-14 | Nokia Mobile Phones Ltd | Signaalin laadun parantaminen |
US6441685B1 (en) | 2000-03-17 | 2002-08-27 | Jl Audio, Inc. | Amplifier circuit and method for providing negative feedback thereto |
AT410152B (de) * | 2000-06-07 | 2003-02-25 | Bier Guenther Ing | Verfahren und vorrichtung zur erzeugung einer einem eingangs-datenstrom folgenden wechselspannung |
EP1178388B1 (en) * | 2000-08-04 | 2006-06-28 | STMicroelectronics S.r.l. | PCM/PWM converter with PWM power amplifier |
US7911324B2 (en) * | 2001-02-16 | 2011-03-22 | Automotive Technologies International, Inc. | Method and system for obtaining information about RFID-equipped objects |
SE0003342D0 (sv) * | 2000-09-19 | 2000-09-19 | Bang & Olufsen Powerhouse As | Controlled self-oscillation modulator and power conversion system using such a modulator |
US6362702B1 (en) | 2000-09-29 | 2002-03-26 | Bang & Olufsen Powerhouse A/S | Controlled self-oscillation modulator and power conversion system using such a modulator |
US6975843B2 (en) | 2000-12-21 | 2005-12-13 | Telefonaktiebolaget L M Ericsson (Publ) | Method and an arrangement relating to telecommunications systems |
EP1229641B1 (en) | 2001-02-01 | 2013-11-06 | Alcatel Lucent | Self oscillating power amplifier |
US9084076B2 (en) | 2001-02-16 | 2015-07-14 | Intelligent Technologies International, Inc. | Techniques for obtaining information about objects |
SE520530C2 (sv) * | 2001-04-26 | 2003-07-22 | Ericsson Telefon Ab L M | Linjäriserad omkopplarbaserad effektförstärkare |
GB0110340D0 (en) * | 2001-04-27 | 2001-06-20 | Watts Robert D | A signal processing circuit |
WO2003005570A1 (fr) * | 2001-07-03 | 2003-01-16 | Niigata Seimitsu Co., Ltd. | Dispositif et procede de reproduction audio, amplificateur audio et circuit integre d'amplificateur audio |
US7200187B2 (en) * | 2001-07-26 | 2007-04-03 | O'brien Thomas J | Modulator for digital amplifier |
JP3941443B2 (ja) * | 2001-09-27 | 2007-07-04 | ヤマハ株式会社 | 自走式pwm増幅器 |
US20030095666A1 (en) * | 2001-11-16 | 2003-05-22 | Ramage Robert D. | Machine for controlling and amplifying a low-level audio signal using a high efficiency class D switching amplifier |
US20030095000A1 (en) * | 2001-11-16 | 2003-05-22 | Acoustic Technology, Inc. | Apparatus with ultra high output power class D audio amplifier |
US7336794B2 (en) * | 2001-11-30 | 2008-02-26 | Sonion A/S | High efficiency driver for miniature loudspeakers |
AT411415B (de) * | 2001-12-11 | 2003-12-29 | Bier Guenther Ing | Verfahren und vorrichtung zur erzeugung einer einem eingangs-datenstrom folgenden wechselspannung |
SE0104401D0 (sv) * | 2001-12-21 | 2001-12-21 | Bang & Olufsen Powerhouse As | Syncronized controlled oscillation modulator |
JP4301956B2 (ja) * | 2002-01-18 | 2009-07-22 | アメリカン・テクノロジー・コーポレーション | 変調器及び増幅器 |
US7113038B2 (en) * | 2002-04-19 | 2006-09-26 | Koninklijke Philips Electronics N.V. | Power amplifier |
JP3776392B2 (ja) * | 2002-10-03 | 2006-05-17 | 三菱電機株式会社 | D級増幅器 |
US6924700B2 (en) * | 2002-10-03 | 2005-08-02 | Mitsubishi Denki Kabushiki Kaisha | Class D amplifier |
SE0203403D0 (sv) * | 2002-11-15 | 2002-11-15 | Bang & Olufsen Icepower As | Pulse modulated power converter |
WO2004100356A2 (en) * | 2003-05-09 | 2004-11-18 | Danmarks Tekniske Universitet | Global loop integrating modulator |
US7002406B2 (en) | 2003-05-16 | 2006-02-21 | Texas Instruments Incorporated | Loop filter for class D amplifiers |
WO2005002050A1 (en) * | 2003-06-27 | 2005-01-06 | Tc Electronic A/S | Self-oscillating power circuit |
US7551022B2 (en) * | 2003-10-10 | 2009-06-23 | Tc Electronic A/S | Power supply compensation |
US20060044057A1 (en) * | 2004-08-26 | 2006-03-02 | Rahmi Hezar | Class-D amplifier having high order loop filtering |
US20090072902A1 (en) * | 2004-10-27 | 2009-03-19 | Extraordinary Technology Pty Ltd | Low distortion class-d amplifier |
US20060115280A1 (en) * | 2004-11-30 | 2006-06-01 | Chang Jae J | Optical link bandwidth improvement |
MY138040A (en) * | 2005-02-17 | 2009-04-30 | Tube Amp Sdn Bhd | Apparatus for providing amplification with multi-feedback path |
WO2007025548A1 (en) * | 2005-09-01 | 2007-03-08 | Danmarks Tekniske Universitet | A self-oscillating modulator |
US8036402B2 (en) | 2005-12-15 | 2011-10-11 | Harman International Industries, Incorporated | Distortion compensation |
WO2007098766A1 (en) * | 2006-03-01 | 2007-09-07 | Danmarks Teknishe Universitet | Digital self-oscillating modulator |
EP1830464A1 (en) * | 2006-03-01 | 2007-09-05 | Danmarks Tekniske Universitet | Digital self-oscillating modulator |
CN101395793B (zh) * | 2006-03-03 | 2012-08-29 | B&Oice动力公司 | 混合反馈控制的振荡调制器和开关功率放大器系统 |
EP1843465A1 (en) * | 2006-03-29 | 2007-10-10 | STMicroelectronics S.r.l. | Multiple feedback class-D amplifier |
US7400191B2 (en) | 2006-04-07 | 2008-07-15 | Manuel De Jesus Rodriguez | Switching power amplifier |
DE102006026906B4 (de) * | 2006-06-09 | 2011-02-10 | Infineon Technologies Ag | Schaltung und Verfahren zur Pulsweitenmodulation mittels synchronisierter, selbstoszillierender Pulsweitenmodulatoren |
WO2008006367A1 (en) * | 2006-07-11 | 2008-01-17 | The Tc Group A/S | A high-mode self-oscillating pulse modulator |
JP5222297B2 (ja) * | 2006-09-28 | 2013-06-26 | パスカル・アー/エス | 被制御パワー・コンバータ |
US7576604B2 (en) | 2006-12-15 | 2009-08-18 | Bin Xu | All-digital class-D audio amplifier |
US7705672B1 (en) | 2007-02-12 | 2010-04-27 | Manuel De Jesus Rodriguez | Buck converters as power amplifier |
FR2915036B1 (fr) * | 2007-04-13 | 2009-07-03 | Anagram Technologies | Dispositif de modulation de signaux en largeurs d'impulsions a trois niveaux et amplificateur numerique mettant en oeuvre un tel dispositif. |
KR101445721B1 (ko) * | 2008-02-01 | 2014-09-26 | 삼성전자 주식회사 | 멀티 페이즈 클럭신호를 이용한 고속 다단 증폭기 및증폭기의 세틀링 방법 |
US7791521B2 (en) * | 2008-04-01 | 2010-09-07 | Silicon Laboratories, Inc. | System and method of changing a PWM power spectrum |
US7598895B1 (en) * | 2008-04-01 | 2009-10-06 | Silicon Laboratories, Inc. | System and method of altering a PWM carrier power spectrum |
US7701307B2 (en) * | 2008-04-01 | 2010-04-20 | Silicon Laboratories, Inc. | System and method of changing a PWM power spectrum |
KR20100008749A (ko) * | 2008-07-16 | 2010-01-26 | 삼성전자주식회사 | 스위칭 파워 증폭 장치 및 그 제어 방법 |
US8130128B2 (en) | 2010-03-30 | 2012-03-06 | Silicon Laboratores Inc. | System and method for generating shaped noise |
JP5355496B2 (ja) * | 2010-05-24 | 2013-11-27 | 三菱電機株式会社 | バイアス制御増幅器 |
KR101802333B1 (ko) * | 2011-10-17 | 2017-12-29 | 삼성전자주식회사 | 오디오 신호 출력 방법 및 그에 따른 오디오 신호 처리 장치 |
US10038411B2 (en) * | 2016-10-31 | 2018-07-31 | Rgb Systems, Inc. | Method and apparatus for distortion reduction in a class D amplifier |
US10110181B2 (en) * | 2016-12-30 | 2018-10-23 | Texas Instruments Incorporated | Class-D amplifier with post filter feedback loop |
EP3416285B1 (en) | 2017-06-16 | 2021-06-02 | ICEpower a/s | Self-oscillating amplifier system |
ES2963490T3 (es) | 2017-12-07 | 2024-03-27 | Purifi Aps | Un amplificador con compensador con una red de al menos tercer orden |
KR20200096278A (ko) | 2017-12-07 | 2020-08-11 | 퓨리파이 에이피에스 | 증폭기 회로 |
DK3721555T3 (da) | 2017-12-07 | 2023-11-20 | Purifi Aps | Forstærker med et filter af mindst anden orden i kontrolsløjfen |
US11190148B2 (en) * | 2020-01-02 | 2021-11-30 | Cirrus Logic, Inc. | Minimizing idle channel noise in a class-D pulse width modulation amplifier |
US11128270B1 (en) * | 2020-05-21 | 2021-09-21 | Qsc, Llc | Class-D amplifier with nested feedback loops |
EP4102717A1 (en) | 2021-06-08 | 2022-12-14 | ICEpower a/s | Self-oscillating class d audio amplifier with voltage limiting circuit |
DE102022116446A1 (de) | 2022-07-01 | 2024-01-04 | Sennheiser Electronic Gmbh & Co. Kg | Lautsprecher-Leistungsverstärker und Lautsprecher |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5818804B2 (ja) | 1974-12-18 | 1983-04-14 | ソニー株式会社 | パルス幅変調増巾回路 |
JPS5947486B2 (ja) | 1976-12-06 | 1984-11-19 | ソニー株式会社 | パルス幅変調増巾回路 |
JPS59814Y2 (ja) | 1977-04-22 | 1984-01-11 | ブライアン・ア−ネスト・アトウツド | D級増幅器 |
JPS5639606A (en) * | 1979-09-07 | 1981-04-15 | Matsushita Electric Ind Co Ltd | Self-excited type d-class amplifier |
JPS58130617A (ja) * | 1982-01-29 | 1983-08-04 | Nippon Gakki Seizo Kk | パルス幅変調回路 |
US4524335A (en) * | 1982-03-13 | 1985-06-18 | Nippon Gakki Seizo Kabushiki Kaisha | Pulse-width modulation circuit with carrier signal frequency control |
JPS5967719A (ja) | 1982-10-09 | 1984-04-17 | Nippon Gakki Seizo Kk | パルス幅変調回路 |
US4724396A (en) | 1984-08-21 | 1988-02-09 | Peavey Electronics Corporation | Digital audio amplifier |
US5218315A (en) * | 1992-01-06 | 1993-06-08 | Infinity Systems, Inc. | Switching amplifier |
US5352986A (en) * | 1993-01-22 | 1994-10-04 | Digital Fidelity, Inc. | Closed loop power controller |
US5410592A (en) * | 1993-06-04 | 1995-04-25 | Harris Corporation | Class `D` audio speaker amplifier circuit with state variable feedback control |
US5815581A (en) | 1995-10-19 | 1998-09-29 | Mitel Semiconductor, Inc. | Class D hearing aid amplifier with feedback |
US5777512A (en) * | 1996-06-20 | 1998-07-07 | Tripath Technology, Inc. | Method and apparatus for oversampled, noise-shaping, mixed-signal processing |
US5805020A (en) * | 1996-06-27 | 1998-09-08 | Harris Corporation | Silent start class D amplifier |
US5949282A (en) * | 1998-02-25 | 1999-09-07 | National Semiconductor Corporation | Class D amplifier no low pass filter feedback with zero phase delay |
US6064259A (en) * | 1998-07-24 | 2000-05-16 | Nikon Corporation Of America | High power, high performance pulse width modulation amplifier |
-
1997
- 1997-10-31 DE DE69726592T patent/DE69726592T2/de not_active Expired - Lifetime
- 1997-10-31 US US09/297,058 patent/US6297692B1/en not_active Expired - Lifetime
- 1997-10-31 CN CN97199272A patent/CN1123115C/zh not_active Expired - Lifetime
- 1997-10-31 EP EP03013623A patent/EP1376858B1/en not_active Expired - Lifetime
- 1997-10-31 AU AU47728/97A patent/AU734813B2/en not_active Expired
- 1997-10-31 KR KR10-1999-7003802A patent/KR100394846B1/ko not_active IP Right Cessation
- 1997-10-31 CA CA002271041A patent/CA2271041C/en not_active Expired - Lifetime
- 1997-10-31 EP EP97910272A patent/EP0935846B1/en not_active Expired - Lifetime
- 1997-10-31 PT PT97910272T patent/PT935846E/pt unknown
- 1997-10-31 JP JP51995098A patent/JP3346579B2/ja not_active Expired - Lifetime
- 1997-10-31 AT AT97910272T patent/ATE255784T1/de not_active IP Right Cessation
- 1997-10-31 DK DK97910272T patent/DK0935846T3/da active
- 1997-10-31 AT AT03013623T patent/ATE315285T1/de not_active IP Right Cessation
- 1997-10-31 DE DE69735029T patent/DE69735029T2/de not_active Expired - Lifetime
- 1997-10-31 ES ES97910272T patent/ES2212082T3/es not_active Expired - Lifetime
- 1997-10-31 WO PCT/DK1997/000497 patent/WO1998019391A2/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ES2212082T3 (es) | 2004-07-16 |
WO1998019391A3 (en) | 1998-07-23 |
KR100394846B1 (ko) | 2003-08-19 |
AU734813B2 (en) | 2001-06-21 |
DE69726592T2 (de) | 2004-11-11 |
CN1235711A (zh) | 1999-11-17 |
AU4772897A (en) | 1998-05-22 |
JP3346579B2 (ja) | 2002-11-18 |
ATE315285T1 (de) | 2006-02-15 |
EP1376858B1 (en) | 2006-01-04 |
EP0935846B1 (en) | 2003-12-03 |
ATE255784T1 (de) | 2003-12-15 |
CN1123115C (zh) | 2003-10-01 |
PT935846E (pt) | 2004-04-30 |
DE69735029D1 (de) | 2006-03-30 |
WO1998019391A2 (en) | 1998-05-07 |
CA2271041A1 (en) | 1998-05-07 |
EP1376858A1 (en) | 2004-01-02 |
US6297692B1 (en) | 2001-10-02 |
CA2271041C (en) | 2003-03-18 |
DE69735029T2 (de) | 2006-09-14 |
EP0935846A2 (en) | 1999-08-18 |
KR20000052932A (ko) | 2000-08-25 |
JP2001503575A (ja) | 2001-03-13 |
DE69726592D1 (de) | 2004-01-15 |
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