WO2002025809A2 - Switching power amplifier - Google Patents
Switching power amplifier Download PDFInfo
- Publication number
- WO2002025809A2 WO2002025809A2 PCT/EP2001/010317 EP0110317W WO0225809A2 WO 2002025809 A2 WO2002025809 A2 WO 2002025809A2 EP 0110317 W EP0110317 W EP 0110317W WO 0225809 A2 WO0225809 A2 WO 0225809A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switching power
- power amplifier
- unit
- input
- output
- 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
- 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
- H03F3/2175—Class D power amplifiers; Switching amplifiers using analogue-digital or digital-analogue conversion
-
- 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
- H03F3/2178—Class D power amplifiers; Switching amplifiers using more than one switch or switching amplifier in parallel or in series
-
- 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
- H03F2200/114—Indexing scheme relating to amplifiers the amplifier comprising means for electro-magnetic interference [EMI] protection
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/372—Noise reduction and elimination in amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/537—A transformer being used as coupling element between two amplifying stages
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60128117T DE60128117T2 (en) | 2000-09-21 | 2001-09-06 | SWITCHING POWER BOOST |
EP01960725A EP1323230B1 (en) | 2000-09-21 | 2001-09-06 | Switching power amplifier |
JP2002528907A JP2004509548A (en) | 2000-09-21 | 2001-09-06 | Switching power amplifier |
KR1020027006424A KR20020067522A (en) | 2000-09-21 | 2001-09-06 | Switching power amplifier |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00203269 | 2000-09-21 | ||
EP00203269.6 | 2000-09-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002025809A2 true WO2002025809A2 (en) | 2002-03-28 |
WO2002025809A3 WO2002025809A3 (en) | 2002-06-06 |
Family
ID=8172042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/010317 WO2002025809A2 (en) | 2000-09-21 | 2001-09-06 | Switching power amplifier |
Country Status (8)
Country | Link |
---|---|
US (1) | US6803816B2 (en) |
EP (1) | EP1323230B1 (en) |
JP (1) | JP2004509548A (en) |
KR (1) | KR20020067522A (en) |
CN (1) | CN1319269C (en) |
AT (1) | ATE360916T1 (en) |
DE (1) | DE60128117T2 (en) |
WO (1) | WO2002025809A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2770634A1 (en) * | 2013-02-25 | 2014-08-27 | Telefonaktiebolaget L M Ericsson (publ) | Distributed power amplifier circuit |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7116956B2 (en) * | 2001-02-16 | 2006-10-03 | Cubic Corporation | Power oscillator for control of waveshape and amplitude |
US7200187B2 (en) * | 2001-07-26 | 2007-04-03 | O'brien Thomas J | Modulator for digital amplifier |
US6982662B2 (en) * | 2003-03-06 | 2006-01-03 | Texas Instruments Incorporated | Method and apparatus for efficient conversion of signals using look-up table |
US7053700B2 (en) * | 2003-06-02 | 2006-05-30 | Nortel Networks Limited | High-efficiency amplifier and method |
JP4817890B2 (en) * | 2005-03-17 | 2011-11-16 | パナソニック株式会社 | Amplifying device, polar modulation transmitting device, and wireless communication device |
JP4710870B2 (en) * | 2007-05-10 | 2011-06-29 | ヤマハ株式会社 | Digital amplifier device and speaker device |
US7629840B2 (en) * | 2007-10-22 | 2009-12-08 | Freescale Semiconductor, Inc. | Digital pulse width modulated feedback system for a switching amplifier and method therefor |
US7847433B2 (en) * | 2007-11-27 | 2010-12-07 | Rain Bird Corporation | Universal irrigation controller power supply |
KR20100008749A (en) | 2008-07-16 | 2010-01-26 | 삼성전자주식회사 | Switching power amplifier and control method thereof |
US8174333B1 (en) * | 2011-01-04 | 2012-05-08 | Nxp B.V. | Power-efficient spectrum shaping for a magnetic link |
FR3023089B1 (en) * | 2014-06-30 | 2016-07-22 | Devialet | AUDIO AMPLIFIER VERY HIGH FIDELITY |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4164714A (en) * | 1977-09-26 | 1979-08-14 | Harris Corporation | Polyphase PDM amplifier |
WO1992011699A1 (en) * | 1990-12-19 | 1992-07-09 | British Technology Group Ltd. | Digital-to-analogue conversion |
US5524171A (en) * | 1992-06-05 | 1996-06-04 | Thomson-Csf | Device for the processing and pre-correction of an audio signal before it is amplified in an amplification system of a transmitter with amplitude modulation |
US5617058A (en) * | 1995-11-13 | 1997-04-01 | Apogee Technology, Inc. | Digital signal processing for linearization of small input signals to a tri-state power switch |
US6107876A (en) * | 1999-04-13 | 2000-08-22 | Ravisent Technologies, Inc. | Digital input switching audio power amplifier |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4614901A (en) * | 1985-10-15 | 1986-09-30 | Kennedy Company | Servo power amplifier having load equalization |
US5099203A (en) * | 1990-06-05 | 1992-03-24 | Continental Electronics Corporation | Power amplifier having multiple switched stages and method of operating same |
US5339041A (en) * | 1993-07-06 | 1994-08-16 | The Boeing Company | High efficiency power amplifier |
US5734565A (en) * | 1996-08-16 | 1998-03-31 | American Superconductor Corporation | Reducing switching losses in series connected bridge inverters and amplifiers |
JPH1141078A (en) * | 1997-07-16 | 1999-02-12 | Wako Giken:Kk | Method and device for shortening dead time of semiconductor device and pwm inverter |
US5959501A (en) | 1998-01-14 | 1999-09-28 | Harris Corporation | Class D amplifier with scaled clock and related methods |
-
2001
- 2001-09-06 CN CNB018028098A patent/CN1319269C/en not_active Expired - Fee Related
- 2001-09-06 JP JP2002528907A patent/JP2004509548A/en not_active Withdrawn
- 2001-09-06 AT AT01960725T patent/ATE360916T1/en not_active IP Right Cessation
- 2001-09-06 KR KR1020027006424A patent/KR20020067522A/en not_active Application Discontinuation
- 2001-09-06 EP EP01960725A patent/EP1323230B1/en not_active Expired - Lifetime
- 2001-09-06 DE DE60128117T patent/DE60128117T2/en not_active Expired - Fee Related
- 2001-09-06 WO PCT/EP2001/010317 patent/WO2002025809A2/en active IP Right Grant
- 2001-09-19 US US09/955,896 patent/US6803816B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4164714A (en) * | 1977-09-26 | 1979-08-14 | Harris Corporation | Polyphase PDM amplifier |
US4164714B1 (en) * | 1977-09-26 | 1984-12-25 | ||
WO1992011699A1 (en) * | 1990-12-19 | 1992-07-09 | British Technology Group Ltd. | Digital-to-analogue conversion |
US5524171A (en) * | 1992-06-05 | 1996-06-04 | Thomson-Csf | Device for the processing and pre-correction of an audio signal before it is amplified in an amplification system of a transmitter with amplitude modulation |
US5617058A (en) * | 1995-11-13 | 1997-04-01 | Apogee Technology, Inc. | Digital signal processing for linearization of small input signals to a tri-state power switch |
US6107876A (en) * | 1999-04-13 | 2000-08-22 | Ravisent Technologies, Inc. | Digital input switching audio power amplifier |
Non-Patent Citations (1)
Title |
---|
See also references of EP1323230A2 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2770634A1 (en) * | 2013-02-25 | 2014-08-27 | Telefonaktiebolaget L M Ericsson (publ) | Distributed power amplifier circuit |
WO2014128158A1 (en) * | 2013-02-25 | 2014-08-28 | Telefonaktiebolaget L M Ericsson (Publ) | Distributed power amplifier circuit |
US9634614B2 (en) | 2013-02-25 | 2017-04-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Distributed power amplifier circuit |
Also Published As
Publication number | Publication date |
---|---|
ATE360916T1 (en) | 2007-05-15 |
CN1561573A (en) | 2005-01-05 |
US6803816B2 (en) | 2004-10-12 |
CN1319269C (en) | 2007-05-30 |
US20020053945A1 (en) | 2002-05-09 |
EP1323230A2 (en) | 2003-07-02 |
DE60128117D1 (en) | 2007-06-06 |
DE60128117T2 (en) | 2007-12-27 |
KR20020067522A (en) | 2002-08-22 |
JP2004509548A (en) | 2004-03-25 |
WO2002025809A3 (en) | 2002-06-06 |
EP1323230B1 (en) | 2007-04-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7250816B2 (en) | Method and apparatus for combining multiple signals for high efficiency applications | |
US6803816B2 (en) | Switching power amplifier | |
US20060284673A1 (en) | Amplifier having half-wave tracking power rails | |
US6593807B2 (en) | Digital amplifier with improved performance | |
CN107276549B (en) | Audio amplifier system | |
EP0525777B1 (en) | Speaker driving circuit | |
US7990215B2 (en) | Class D amplifier control circuit and method | |
US6107876A (en) | Digital input switching audio power amplifier | |
US20080042746A1 (en) | Sigma-delta based class d audio or servo amplifier with load noise shaping | |
US7605653B2 (en) | Sigma-delta based class D audio power amplifier with high power efficiency | |
CN105432020A (en) | Quantization noise coupling delta sigma ADC with a delay in the main DAC feedback | |
WO2004049561A1 (en) | Pulse width-modulated noise shaper | |
US6762704B1 (en) | Modulation of a digital input signal using multiple digital signal modulators | |
JP2008035027A (en) | Delta/sigma modulation type d/a converting device | |
US20040223545A1 (en) | Multi-level pulse width modulation in digital system | |
EP1596625A1 (en) | Circuit for the control of a loudspeaker | |
US20040189502A1 (en) | Multi-level pulse width modulation in digital system | |
WO2004047286A1 (en) | Pulse modulated power converter | |
JP2015109640A (en) | Multiple-state, switch-mode power amplifier systems, and methods of their operation | |
CN1878000B (en) | Digital-to-analog converter | |
Pracný et al. | System-level power optimization of digital audio back end for hearing aids | |
US7706438B1 (en) | Circuits and methods for reducing noise and distortion in pulse width modulation systems | |
US11329617B1 (en) | Dual-channel class-D audio amplifier having quantizer-combined orthogonal modulation | |
WO2005048456A2 (en) | Multi-level pulse width modulation in digital system | |
Sadeem et al. | A 1 mW delta-sigma modulator for multichannel applications |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): CN JP KR |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001960725 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref country code: JP Ref document number: 2002 528907 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020027006424 Country of ref document: KR Ref document number: 018028098 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A3 Designated state(s): CN JP KR |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
WWP | Wipo information: published in national office |
Ref document number: 1020027006424 Country of ref document: KR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWP | Wipo information: published in national office |
Ref document number: 2001960725 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2001960725 Country of ref document: EP |