CN102355214A - 可调增益音频功率放大电路 - Google Patents
可调增益音频功率放大电路 Download PDFInfo
- Publication number
- CN102355214A CN102355214A CN2011103361864A CN201110336186A CN102355214A CN 102355214 A CN102355214 A CN 102355214A CN 2011103361864 A CN2011103361864 A CN 2011103361864A CN 201110336186 A CN201110336186 A CN 201110336186A CN 102355214 A CN102355214 A CN 102355214A
- Authority
- CN
- China
- Prior art keywords
- gain
- unit
- input
- adjustable
- resistance
- 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.)
- Granted
Links
- 230000003321 amplification Effects 0.000 title claims abstract description 33
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 33
- 238000001514 detection method Methods 0.000 claims description 32
- 238000005336 cracking Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 230000008676 import Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/04—Modifications of control circuit to reduce distortion caused by control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Amplifiers (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
Description
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110336186.4A CN102355214B (zh) | 2011-10-31 | 2011-10-31 | 可调增益音频功率放大电路 |
US13/494,991 US8643434B2 (en) | 2011-10-31 | 2012-06-13 | Adjustable gain audio power amplifying circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110336186.4A CN102355214B (zh) | 2011-10-31 | 2011-10-31 | 可调增益音频功率放大电路 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102355214A true CN102355214A (zh) | 2012-02-15 |
CN102355214B CN102355214B (zh) | 2014-01-15 |
Family
ID=45578729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201110336186.4A Expired - Fee Related CN102355214B (zh) | 2011-10-31 | 2011-10-31 | 可调增益音频功率放大电路 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8643434B2 (zh) |
CN (1) | CN102355214B (zh) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9124232B2 (en) | 2013-06-10 | 2015-09-01 | Princeton Technology Corporation | Gain controlling system, sound playback system, and gain controlling method thereof |
CN106303834A (zh) * | 2016-10-14 | 2017-01-04 | Tcl通力电子(惠州)有限公司 | 功放系统的静音控制装置及方法 |
CN106411281A (zh) * | 2015-07-31 | 2017-02-15 | 晶豪科技股份有限公司 | 功率限制放大器 |
WO2018072325A1 (zh) * | 2016-10-20 | 2018-04-26 | 广州视源电子科技股份有限公司 | 一种音频信号的自动增益控制方法和装置 |
CN112865729A (zh) * | 2021-02-01 | 2021-05-28 | 展讯通信(上海)有限公司 | 放大器电路和电子设备 |
CN113035215A (zh) * | 2021-02-02 | 2021-06-25 | 头领科技(昆山)有限公司 | 一种音频信号处理芯片及耳机 |
US11699423B1 (en) | 2022-01-25 | 2023-07-11 | Elite Semiconductor Microelectronics Technology Inc. | Apparatus for noise reduction in audio signal processing |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104767498B (zh) * | 2015-04-30 | 2017-07-21 | 上海艾为电子技术股份有限公司 | 增益控制方法及装置 |
TWI779717B (zh) * | 2021-07-14 | 2022-10-01 | 瑞昱半導體股份有限公司 | 類比前端裝置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7622992B2 (en) * | 2006-08-14 | 2009-11-24 | Realtek Semiconductor Corp. | Power amplifier circuit having a bias signal inputted into input terminal and method thereof |
CN102201792A (zh) * | 2010-03-25 | 2011-09-28 | 上海沙丘微电子有限公司 | 音频功率放大器自动增益控制电路 |
CN202334444U (zh) * | 2011-10-31 | 2012-07-11 | 四川和芯微电子股份有限公司 | 可调增益音频功率放大电路 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7265626B2 (en) * | 2005-12-20 | 2007-09-04 | Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. | Fast-setting digital automatic gain control |
EA014210B1 (ru) * | 2006-10-25 | 2010-10-29 | Сенситив Обджект | Устройство автоматической регулировки усиления, система, включающая в себя такое устройство, и способ автоматической регулировки усиления |
JPWO2008114511A1 (ja) * | 2007-03-19 | 2010-07-01 | パナソニック株式会社 | Agc回路 |
TWI390840B (zh) * | 2008-11-12 | 2013-03-21 | Realtek Semiconductor Corp | 具有自動調整輸出阻抗功能之線驅動器 |
TW201110542A (en) * | 2009-09-08 | 2011-03-16 | Tai 1 Microelectronics Corp | Gain control circuit and gain control method thereof |
-
2011
- 2011-10-31 CN CN201110336186.4A patent/CN102355214B/zh not_active Expired - Fee Related
-
2012
- 2012-06-13 US US13/494,991 patent/US8643434B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7622992B2 (en) * | 2006-08-14 | 2009-11-24 | Realtek Semiconductor Corp. | Power amplifier circuit having a bias signal inputted into input terminal and method thereof |
CN102201792A (zh) * | 2010-03-25 | 2011-09-28 | 上海沙丘微电子有限公司 | 音频功率放大器自动增益控制电路 |
CN202334444U (zh) * | 2011-10-31 | 2012-07-11 | 四川和芯微电子股份有限公司 | 可调增益音频功率放大电路 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9124232B2 (en) | 2013-06-10 | 2015-09-01 | Princeton Technology Corporation | Gain controlling system, sound playback system, and gain controlling method thereof |
CN106411281A (zh) * | 2015-07-31 | 2017-02-15 | 晶豪科技股份有限公司 | 功率限制放大器 |
CN106303834A (zh) * | 2016-10-14 | 2017-01-04 | Tcl通力电子(惠州)有限公司 | 功放系统的静音控制装置及方法 |
CN106303834B (zh) * | 2016-10-14 | 2021-03-12 | Tcl通力电子(惠州)有限公司 | 功放系统的静音控制装置及方法 |
WO2018072325A1 (zh) * | 2016-10-20 | 2018-04-26 | 广州视源电子科技股份有限公司 | 一种音频信号的自动增益控制方法和装置 |
CN112865729A (zh) * | 2021-02-01 | 2021-05-28 | 展讯通信(上海)有限公司 | 放大器电路和电子设备 |
CN112865729B (zh) * | 2021-02-01 | 2023-02-28 | 展讯通信(上海)有限公司 | 放大器电路和电子设备 |
CN113035215A (zh) * | 2021-02-02 | 2021-06-25 | 头领科技(昆山)有限公司 | 一种音频信号处理芯片及耳机 |
US11699423B1 (en) | 2022-01-25 | 2023-07-11 | Elite Semiconductor Microelectronics Technology Inc. | Apparatus for noise reduction in audio signal processing |
Also Published As
Publication number | Publication date |
---|---|
US8643434B2 (en) | 2014-02-04 |
CN102355214B (zh) | 2014-01-15 |
US20130106506A1 (en) | 2013-05-02 |
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Legal Events
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C06 | Publication | ||
PB01 | Publication | ||
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SE01 | Entry into force of request for substantive examination | ||
C53 | Correction of patent of invention or patent application | ||
CB02 | Change of applicant information |
Address after: 610041 Sichuan city of Chengdu province high tech Zone Kyrgyzstan Road 33 block A No. 9 Applicant after: IPGoal Microelectronics (Sichuan) Co.,Ltd. Address before: 402 room 7, building 610041, incubator Park, hi tech Zone, Sichuan, Chengdu Applicant before: IPGoal Microelectronics (Sichuan) Co.,Ltd. |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201210 Address after: Room 705, building 2, No. 515, No. 2 street, Baiyang street, Qiantang New District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang zhexin Technology Development Co.,Ltd. Address before: 9 / F, block a, 33 Jitai Road, high tech Zone, Chengdu, Sichuan 610041 Patentee before: IPGoal Microelectronics (Sichuan) Co.,Ltd. |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210427 Address after: 835221 Electronic Information Industrial Park, Horgos Industrial Park, Yili Kazak Autonomous Prefecture, Xinjiang Uygur Autonomous Region (West of Beijing Road and north of Suzhou Road) Patentee after: Xinjiang xintuan Technology Group Co.,Ltd. Address before: Room 705, building 2, No. 515, No. 2 street, Baiyang street, Qiantang New District, Hangzhou City, Zhejiang Province Patentee before: Zhejiang zhexin Technology Development Co.,Ltd. |
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TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20211031 |
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CF01 | Termination of patent right due to non-payment of annual fee |