BR9612811A - Amplificador classe d para a amplificação de um sinal de entrada - Google Patents
Amplificador classe d para a amplificação de um sinal de entradaInfo
- Publication number
- BR9612811A BR9612811A BR9612811-9A BR9612811A BR9612811A BR 9612811 A BR9612811 A BR 9612811A BR 9612811 A BR9612811 A BR 9612811A BR 9612811 A BR9612811 A BR 9612811A
- Authority
- BR
- Brazil
- Prior art keywords
- signal
- amplifier
- class
- input signal
- clock
- Prior art date
Links
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 230000005236 sound signal Effects 0.000 abstract 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
"AMPLIFICADOR CLASSE D PARA A AMPLIFICAçãO DE UM SINAL DE ENTRADA". A invenção relaciona-se a um amplificador classe D no qual um sinal de referência de alta frequência (E) é modulado por largura de pulso por um sinal de entrada, tal como um sinal de áudio, e no qual são gerados um par de sinais de acionamento de pulsos bipolar (I, J), compreendendo um gerador de erro que forma um sinal com um valor médio que corresponde ao componente CC dos sinais de acionamento de pulso, e que é realimentado ao modulador de largura de pulso para o ajuste do modulador. O sinal de referência de alta frequência (R) é gerado de um primeiro sinal de relógio (a), e os pulsos individuais dos respectivos sinais de acionamento de pulso são controlados via um segundo sinal de relógio (C) que é derivado do primeiro sinal de relógio (A).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/DK1996/000523 WO1998026501A1 (en) | 1996-12-11 | 1996-12-11 | Class d amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9612811A true BR9612811A (pt) | 2000-03-14 |
Family
ID=8155870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9612811-9A BR9612811A (pt) | 1996-12-11 | 1996-12-11 | Amplificador classe d para a amplificação de um sinal de entrada |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US6191650B1 (pt) |
| EP (1) | EP0944956B1 (pt) |
| JP (1) | JP3578773B2 (pt) |
| KR (1) | KR100424359B1 (pt) |
| AU (1) | AU721511B2 (pt) |
| BR (1) | BR9612811A (pt) |
| CA (1) | CA2273210C (pt) |
| DE (1) | DE69627043T2 (pt) |
| DK (1) | DK0944956T3 (pt) |
| ES (1) | ES2195026T3 (pt) |
| NO (1) | NO313479B1 (pt) |
| TW (1) | TW344913B (pt) |
| WO (1) | WO1998026501A1 (pt) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6330279B1 (en) * | 1998-02-06 | 2001-12-11 | Seagate Technology Llc | System and method of correcting gain and offset error in a signal amplifier for a position sensitive detector |
| RU2153764C1 (ru) * | 1999-05-18 | 2000-07-27 | Южно-Уральский государственный университет | Развертывающий преобразователь |
| DE19929841C2 (de) * | 1999-06-29 | 2001-07-12 | Jan Quellmann | Getakteter Verstärker, insbesondere zur Verstärkung von Audiosignalen |
| EP1449404B1 (en) * | 2001-11-30 | 2006-08-30 | Sonion A/S | A high efficiency driver for miniature loudspeakers |
| FR2837647B1 (fr) * | 2002-03-25 | 2006-11-24 | Canon Kk | Emetteur sans fil a consommation de puissance reduite |
| EP1429455A1 (en) * | 2002-12-11 | 2004-06-16 | Dialog Semiconductor GmbH | Linearization of a PDM class-D amplifier |
| JP4201752B2 (ja) * | 2004-09-21 | 2008-12-24 | ローム株式会社 | オーディオパワーアンプｉｃ |
| US9239762B1 (en) * | 2009-08-11 | 2016-01-19 | Symantec Corporation | Method and apparatus for virtualizing file system placeholders at a computer |
| RU2422896C1 (ru) * | 2009-12-16 | 2011-06-27 | Государственное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" | Многозонный развертывающий преобразователь |
| JP2019129329A (ja) | 2018-01-22 | 2019-08-01 | 株式会社東芝 | 電力増幅器 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5797710A (en) * | 1980-12-10 | 1982-06-17 | Toshiba Corp | Power amplifying device |
| US4689819B1 (en) | 1983-12-08 | 1996-08-13 | Knowles Electronics Inc | Class D hearing aid amplifier |
| US5014016A (en) * | 1989-04-13 | 1991-05-07 | Beltone Electronics Corporation | Switching amplifier |
| US5115206A (en) * | 1990-11-08 | 1992-05-19 | North American Philips Corp., Signetics Division | Merged differential amplifier and current source |
| US5115205A (en) * | 1990-12-28 | 1992-05-19 | Square D Company | AC amplifier with automatic DC compensation |
| US5352986A (en) | 1993-01-22 | 1994-10-04 | Digital Fidelity, Inc. | Closed loop power controller |
| US5805020A (en) * | 1996-06-27 | 1998-09-08 | Harris Corporation | Silent start class D amplifier |
| US6014055A (en) * | 1998-02-06 | 2000-01-11 | Intersil Corporation | Class D amplifier with reduced clock requirement and related methods |
-
1996
- 1996-12-11 DK DK96940647T patent/DK0944956T3/da active
- 1996-12-11 WO PCT/DK1996/000523 patent/WO1998026501A1/en not_active Ceased
- 1996-12-11 AU AU10660/97A patent/AU721511B2/en not_active Ceased
- 1996-12-11 ES ES96940647T patent/ES2195026T3/es not_active Expired - Lifetime
- 1996-12-11 DE DE69627043T patent/DE69627043T2/de not_active Expired - Fee Related
- 1996-12-11 JP JP52593198A patent/JP3578773B2/ja not_active Expired - Fee Related
- 1996-12-11 EP EP96940647A patent/EP0944956B1/en not_active Expired - Lifetime
- 1996-12-11 US US09/319,340 patent/US6191650B1/en not_active Expired - Lifetime
- 1996-12-11 CA CA002273210A patent/CA2273210C/en not_active Expired - Fee Related
- 1996-12-11 KR KR10-1999-7005080A patent/KR100424359B1/ko not_active Expired - Fee Related
- 1996-12-11 BR BR9612811-9A patent/BR9612811A/pt not_active IP Right Cessation
-
1997
- 1997-09-23 TW TW086113772A patent/TW344913B/zh active
-
1999
- 1999-05-26 NO NO19992542A patent/NO313479B1/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO313479B1 (no) | 2002-10-07 |
| AU1066097A (en) | 1998-07-03 |
| DE69627043D1 (de) | 2003-04-30 |
| KR100424359B1 (ko) | 2004-03-24 |
| CA2273210A1 (en) | 1998-06-18 |
| NO992542L (no) | 1999-08-03 |
| EP0944956B1 (en) | 2003-03-26 |
| DE69627043T2 (de) | 2004-01-15 |
| TW344913B (en) | 1998-11-11 |
| NO992542D0 (no) | 1999-05-26 |
| KR20000057451A (ko) | 2000-09-15 |
| WO1998026501A8 (en) | 2004-04-22 |
| AU721511B2 (en) | 2000-07-06 |
| JP3578773B2 (ja) | 2004-10-20 |
| CA2273210C (en) | 2004-02-03 |
| JP2001505748A (ja) | 2001-04-24 |
| US6191650B1 (en) | 2001-02-20 |
| EP0944956A1 (en) | 1999-09-29 |
| WO1998026501A9 (en) | 2002-08-08 |
| WO1998026501A1 (en) | 1998-06-18 |
| ES2195026T3 (es) | 2003-12-01 |
| DK0944956T3 (da) | 2003-05-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Decision: intention to grant | ||
| FG9A | Patent or certificate of addition granted | ||
| B24C | Patent annual fee: request for for restoration |
Free format text: REFERENTE A 10A,11A,12A,13A E 14A ANUIDADES |
|
| B24H | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi) | ||
| B24F | Patent annual fee: publication cancelled |
Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2257 DE 08/04/2014 POR TER SIDO INDEVIDA. |
|
| B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE AS 10A, 11A, 12A, 13A E 14A ANUIDADES. |
|
| B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2606 DE 15-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |