DE69011550D1 - Tonfrequenzverstärker mit phasenmodulierter Pulsbreitenmodulation. - Google Patents
Tonfrequenzverstärker mit phasenmodulierter Pulsbreitenmodulation.Info
- Publication number
- DE69011550D1 DE69011550D1 DE69011550T DE69011550T DE69011550D1 DE 69011550 D1 DE69011550 D1 DE 69011550D1 DE 69011550 T DE69011550 T DE 69011550T DE 69011550 T DE69011550 T DE 69011550T DE 69011550 D1 DE69011550 D1 DE 69011550D1
- Authority
- DE
- Germany
- Prior art keywords
- phase
- switching mechanisms
- pulse width
- width modulation
- modulated pulse
- 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
- H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Electronic Switches (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898905002A GB8905002D0 (en) | 1989-03-04 | 1989-03-04 | Audio amplifiers |
US07/422,518 US4992751A (en) | 1989-03-04 | 1989-10-17 | Audio amplifier with phase modulated pulse width modulation |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69011550D1 true DE69011550D1 (de) | 1994-09-22 |
DE69011550T2 DE69011550T2 (de) | 1995-04-13 |
Family
ID=26295057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69011550T Expired - Fee Related DE69011550T2 (de) | 1989-03-04 | 1990-02-28 | Tonfrequenzverstärker mit phasenmodulierter Pulsbreitenmodulation. |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0386933B1 (de) |
JP (1) | JPH0828626B2 (de) |
AT (1) | ATE110198T1 (de) |
BR (1) | BR9000979A (de) |
CA (1) | CA2009775C (de) |
DE (1) | DE69011550T2 (de) |
IE (1) | IE64711B1 (de) |
MX (1) | MX173212B (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5389829A (en) * | 1991-09-27 | 1995-02-14 | Exar Corporation | Output limiter for class-D BICMOS hearing aid output amplifier |
US5225789A (en) * | 1992-04-17 | 1993-07-06 | Northern Telecom Limited | Four quadrant current mode switching amplifier |
US5517154A (en) * | 1995-01-13 | 1996-05-14 | Tektronix, Inc. | Split-path linear isolation circuit apparatus and method |
US5986498A (en) * | 1998-04-14 | 1999-11-16 | Harman International Industries, Incorporated | Audio direct from power supply |
US6392476B1 (en) | 2000-03-14 | 2002-05-21 | Harman International Industries, Incorporated | System and method of producing direct audio from a power supply |
AU2002348890A1 (en) | 2001-11-23 | 2003-06-10 | Koninklijke Philips Electronics N.V. | Switched mode power amplifier |
DE102008026846A1 (de) * | 2008-06-05 | 2009-12-24 | Continental Automotive Gmbh | Schaltungsanordnung |
US8390373B2 (en) * | 2010-06-08 | 2013-03-05 | MUSIC Group IP Ltd. | Ultra-high efficiency switching power inverter and power amplifier |
CN105075091B (zh) * | 2012-11-28 | 2018-03-02 | 广东锐顶电力技术有限公司 | 超高效率单级隔离式开关功率放大器 |
US9306516B2 (en) * | 2012-12-01 | 2016-04-05 | Guangdong Redx Electrical Technology Limited | Single stage switching power amplifier with bidirectional energy flow |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3409817A (en) * | 1965-08-10 | 1968-11-05 | Varo | Phase demodulated high frequency inverter |
JPS5758864B2 (de) * | 1974-03-28 | 1982-12-11 | Sony Corp | |
US4479175A (en) * | 1982-08-13 | 1984-10-23 | Honeywell Inc. | Phase modulated switchmode power amplifier and waveform generator |
US4573018A (en) * | 1984-04-19 | 1986-02-25 | Fred Mirow | Switching amplifier system |
US4600891A (en) * | 1984-08-21 | 1986-07-15 | Peavey Electronics Corporation | Digital audio amplifier having a high power output level and low distortion |
JPS6238885A (ja) * | 1985-08-13 | 1987-02-19 | Taiho Kogyo Co Ltd | パワ−ステアリング用オイルポンプ |
-
1990
- 1990-02-09 CA CA002009775A patent/CA2009775C/en not_active Expired - Fee Related
- 1990-02-28 DE DE69011550T patent/DE69011550T2/de not_active Expired - Fee Related
- 1990-02-28 EP EP90302151A patent/EP0386933B1/de not_active Expired - Lifetime
- 1990-02-28 AT AT90302151T patent/ATE110198T1/de not_active IP Right Cessation
- 1990-03-02 MX MX019730A patent/MX173212B/es unknown
- 1990-03-02 JP JP2051604A patent/JPH0828626B2/ja not_active Expired - Lifetime
- 1990-03-02 BR BR909000979A patent/BR9000979A/pt not_active IP Right Cessation
- 1990-03-02 IE IE75790A patent/IE64711B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0386933A3 (de) | 1991-02-27 |
IE900757L (en) | 1990-09-04 |
JPH02272903A (ja) | 1990-11-07 |
JPH0828626B2 (ja) | 1996-03-21 |
EP0386933B1 (de) | 1994-08-17 |
IE64711B1 (en) | 1995-08-23 |
BR9000979A (pt) | 1991-02-19 |
ATE110198T1 (de) | 1994-09-15 |
EP0386933A2 (de) | 1990-09-12 |
CA2009775A1 (en) | 1990-09-04 |
DE69011550T2 (de) | 1995-04-13 |
MX173212B (es) | 1994-02-09 |
CA2009775C (en) | 1994-12-06 |
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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 |