CN101197586B - 调制输入的电信号的方法和系统 - Google Patents
调制输入的电信号的方法和系统 Download PDFInfo
- Publication number
- CN101197586B CN101197586B CN2007101971915A CN200710197191A CN101197586B CN 101197586 B CN101197586 B CN 101197586B CN 2007101971915 A CN2007101971915 A CN 2007101971915A CN 200710197191 A CN200710197191 A CN 200710197191A CN 101197586 B CN101197586 B CN 101197586B
- Authority
- CN
- China
- Prior art keywords
- output
- adder
- signal
- integrator
- input
- 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
Images
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
-
- 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
Abstract
Description
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/566,995 US7714675B2 (en) | 2006-12-05 | 2006-12-05 | All digital Class-D modulator and its saturation protection techniques |
US11/566,995 | 2006-12-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101197586A CN101197586A (zh) | 2008-06-11 |
CN101197586B true CN101197586B (zh) | 2012-07-18 |
Family
ID=39361361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007101971915A Active CN101197586B (zh) | 2006-12-05 | 2007-12-04 | 调制输入的电信号的方法和系统 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7714675B2 (zh) |
EP (1) | EP1936800A3 (zh) |
KR (1) | KR100950207B1 (zh) |
CN (1) | CN101197586B (zh) |
HK (1) | HK1120940A1 (zh) |
TW (1) | TWI382653B (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8384573B2 (en) * | 2007-05-16 | 2013-02-26 | Intellectual Ventures Holding 40 Llc | Low-power digital-to-analog converter |
US8471549B2 (en) * | 2010-05-09 | 2013-06-25 | Richwave Technology Corp. | Power detector |
TWI460989B (zh) | 2011-12-15 | 2014-11-11 | Princeton Technology Corp | 能改善音頻信號突波的放大電路 |
EP2802077B1 (en) * | 2013-05-10 | 2015-07-08 | Nxp B.V. | A sigma-delta modulator |
JP6217736B2 (ja) | 2015-11-19 | 2017-10-25 | オンキヨー株式会社 | パルス幅変調器およびそのプログラム |
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 |
CN107449475B (zh) * | 2017-09-07 | 2024-03-19 | 上海一诺仪表有限公司 | 超声流量计 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7046080B2 (en) * | 2001-04-27 | 2006-05-16 | Robert David Watts | Signal processing circuit |
CN1792038A (zh) * | 2003-05-21 | 2006-06-21 | 模拟设备股份有限公司 | 用于d类放大的具有减少的切换速率的σ-△调制器 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4724396A (en) | 1984-08-21 | 1988-02-09 | Peavey Electronics Corporation | Digital audio amplifier |
NL8600862A (nl) * | 1986-04-04 | 1987-11-02 | Philips Nv | Kodeerinrichting. |
GB9103777D0 (en) | 1991-02-22 | 1991-04-10 | B & W Loudspeakers | Analogue and digital convertors |
EP0559944B1 (de) | 1992-03-12 | 1996-02-28 | Siemens Aktiengesellschaft | Sigma-Delta-Modulator |
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 |
US5682160A (en) | 1996-05-20 | 1997-10-28 | Ribner; David Byrd | High-order delta sigma analog-to-digital converter with unit-delay integrators |
US6107876A (en) | 1999-04-13 | 2000-08-22 | Ravisent Technologies, Inc. | Digital input switching audio power amplifier |
KR100334057B1 (ko) * | 1999-06-26 | 2002-04-26 | 윤덕용 | 혼합모드 적분기를 이용한 시그마-델타 아날로그-디지털 변환기 |
US6970503B1 (en) | 2000-04-21 | 2005-11-29 | National Semiconductor Corporation | Apparatus and method for converting analog signal to pulse-width-modulated signal |
US6373334B1 (en) | 2000-06-12 | 2002-04-16 | Cirrus Logic, Inc. | Real time correction of a digital PWM amplifier |
US7200187B2 (en) | 2001-07-26 | 2007-04-03 | O'brien Thomas J | Modulator for digital amplifier |
US6606044B2 (en) | 2002-01-02 | 2003-08-12 | Motorola, Inc. | Method and apparatus for generating a pulse width modulated signal |
US7170360B2 (en) | 2003-01-31 | 2007-01-30 | Infineon Technologies Ag | Device and method for digital pulse width modulation |
US7590251B2 (en) | 2003-03-21 | 2009-09-15 | D2Audio Corporation | Clip detection in PWM amplifier |
SE0300780D0 (sv) * | 2003-03-24 | 2003-03-24 | Bang & Olufsen Icepower As | Digital pulse width controlled oscillation modulator |
US7038535B2 (en) * | 2003-03-29 | 2006-05-02 | Wai Laing Lee | PWM digital amplifier with high-order loop filter |
US7084800B2 (en) * | 2003-08-19 | 2006-08-01 | Broadcom Corporation | System and method for shuffling mapping sequences |
US7142050B2 (en) | 2003-10-15 | 2006-11-28 | Texas Instruments Incorporated | Recovery from clipping events in a class D amplifier |
US7315202B2 (en) | 2004-07-02 | 2008-01-01 | Yamaha Corporation | Pulse-width modulation amplifier and suppression of clipping therefor |
US20060044057A1 (en) | 2004-08-26 | 2006-03-02 | Rahmi Hezar | Class-D amplifier having high order loop filtering |
US6956513B1 (en) * | 2004-10-22 | 2005-10-18 | Broadcom Corporation | Error feedback structure for delta-sigma modulators with improved stability |
US7315268B1 (en) * | 2006-06-15 | 2008-01-01 | Freescale Semiconductor Inc. | Integrator current matching |
-
2006
- 2006-12-05 US US11/566,995 patent/US7714675B2/en not_active Expired - Fee Related
-
2007
- 2007-07-23 EP EP07014444A patent/EP1936800A3/en not_active Withdrawn
- 2007-12-04 CN CN2007101971915A patent/CN101197586B/zh active Active
- 2007-12-05 KR KR1020070125369A patent/KR100950207B1/ko not_active IP Right Cessation
- 2007-12-05 TW TW096146326A patent/TWI382653B/zh not_active IP Right Cessation
-
2008
- 2008-11-11 HK HK08112346.8A patent/HK1120940A1/xx not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7046080B2 (en) * | 2001-04-27 | 2006-05-16 | Robert David Watts | Signal processing circuit |
CN1792038A (zh) * | 2003-05-21 | 2006-06-21 | 模拟设备股份有限公司 | 用于d类放大的具有减少的切换速率的σ-△调制器 |
Also Published As
Publication number | Publication date |
---|---|
EP1936800A3 (en) | 2010-01-06 |
CN101197586A (zh) | 2008-06-11 |
HK1120940A1 (en) | 2009-04-09 |
KR20080052435A (ko) | 2008-06-11 |
US20080129376A1 (en) | 2008-06-05 |
KR100950207B1 (ko) | 2010-03-29 |
TW200843337A (en) | 2008-11-01 |
US7714675B2 (en) | 2010-05-11 |
EP1936800A2 (en) | 2008-06-25 |
TWI382653B (zh) | 2013-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101197586B (zh) | 调制输入的电信号的方法和系统 | |
US6864668B1 (en) | High-efficiency amplifier output level and burst control | |
US6377784B2 (en) | High-efficiency modulation RF amplifier | |
US7724839B2 (en) | Multilevel LINC transmitter | |
CN102379089B (zh) | 具有可变后调节的电力供应控制系统及方法 | |
US7253758B2 (en) | Third order sigma-delta modulator | |
US20070290747A1 (en) | System and method for polar modulation using power amplifier bias control | |
IL187206A (en) | Direct conversion with variable amplitude lo signals | |
CN1371545A (zh) | 高效调制射频放大器 | |
US8704558B2 (en) | Method and apparatus for producing triangular waveform with low audio band noise content | |
WO2004047351A3 (en) | Radio frequency power amplifier adaptive bias control circuit | |
CN101273529B (zh) | 用于Delta-Sigma调制器中调节抖动的系统及方法 | |
US20070109165A1 (en) | Digital saturation handling in integral noise shaping of pulse width modulation | |
Norris et al. | Quantization noise shaping in digital PWM converters | |
CN101399559B (zh) | 声音信号处理装置 | |
KR20060111653A (ko) | 휴대용 통신 장치용 신호 발생 전력 관리 제어 시스템 및그 사용 방법 | |
CN114902557B (zh) | 最小化d类脉宽调制放大器中的空闲信道噪声 | |
CN100385893C (zh) | 带有低音提升电路的移动通信终端 | |
CN201365230Y (zh) | 一种负反馈音频谐波激励电路 | |
US20070060074A1 (en) | High-efficiency modulating RF amplifier |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1120940 Country of ref document: HK |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1120940 Country of ref document: HK |
|
TR01 | Transfer of patent right |
Effective date of registration: 20180503 Address after: Singapore Singapore Patentee after: Avago Technologies Fiber IP Singapore Pte. Ltd. Address before: Alton Park Road, Irvine, California, 16215, 92618-7013 Patentee before: Zyray Wireless Inc. |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190828 Address after: Singapore Singapore Patentee after: Annwa high tech Limited by Share Ltd Address before: Singapore Singapore Patentee before: Avago Technologies Fiber IP Singapore Pte. Ltd. |
|
TR01 | Transfer of patent right |