CN1139183C - 功率放大器及其控制电路 - Google Patents
功率放大器及其控制电路 Download PDFInfo
- Publication number
- CN1139183C CN1139183C CNB991085396A CN99108539A CN1139183C CN 1139183 C CN1139183 C CN 1139183C CN B991085396 A CNB991085396 A CN B991085396A CN 99108539 A CN99108539 A CN 99108539A CN 1139183 C CN1139183 C CN 1139183C
- Authority
- CN
- China
- Prior art keywords
- amplifier
- variable gain
- output
- gain amplifier
- power amplifier
- 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
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
- H03F2203/7239—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers and shunting lines by one or more switch(es)
Landscapes
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
Abstract
Description
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17610198A JP3314806B2 (ja) | 1998-06-23 | 1998-06-23 | 電力増幅器 |
JP176101/1998 | 1998-06-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1244066A CN1244066A (zh) | 2000-02-09 |
CN1139183C true CN1139183C (zh) | 2004-02-18 |
Family
ID=16007721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB991085396A Expired - Fee Related CN1139183C (zh) | 1998-06-23 | 1999-06-23 | 功率放大器及其控制电路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6201440B1 (zh) |
JP (1) | JP3314806B2 (zh) |
CN (1) | CN1139183C (zh) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6559722B1 (en) * | 1999-08-10 | 2003-05-06 | Anadigics, Inc. | Low bias current/temperature compensation current mirror for linear power amplifier |
FR2812141B1 (fr) * | 2000-07-21 | 2003-01-10 | Thomson Multimedia Sa | Bloc d'amplification de signaux rf, dispositif d'emission de signaux rf et terminal-antenne d'emission de signaux rf |
FI114261B (fi) * | 2000-09-12 | 2004-09-15 | Nokia Corp | Lähetin ja langaton viestintälaite |
WO2002049209A1 (fr) | 2000-12-15 | 2002-06-20 | Matsushita Electric Industrial Co., Ltd. | Amplificateur de puissance et appareil de communication |
US6701138B2 (en) * | 2001-06-11 | 2004-03-02 | Rf Micro Devices, Inc. | Power amplifier control |
JP4160381B2 (ja) * | 2002-12-27 | 2008-10-01 | ローム株式会社 | 音声出力装置を有する電子装置 |
JP3874747B2 (ja) * | 2003-08-08 | 2007-01-31 | 松下電器産業株式会社 | 送信装置、送信電力制御方法および無線通信装置 |
EP1450483A1 (en) * | 2003-12-22 | 2004-08-25 | Siemens Aktiengesellschaft | A method and device for controlling a power amplifier of a radio transmitter, and a mobile terminal |
US20070014382A1 (en) * | 2005-07-15 | 2007-01-18 | Nokia Corporation | Reconfigurable transmitter |
CN101136616B (zh) * | 2006-08-30 | 2010-12-01 | 凌浩科技股份有限公司 | 西格玛-德尔塔型功率放大器及其调变方法 |
US7768353B2 (en) | 2008-06-13 | 2010-08-03 | Samsung Electro-Mechanics Company, Ltd. | Systems and methods for switching mode power amplifier control |
CN101834571A (zh) * | 2010-05-13 | 2010-09-15 | 上海图越电子有限公司 | 高效线性功率放大电路 |
US9634625B2 (en) * | 2013-05-28 | 2017-04-25 | Mediatek Inc. | Radio frequency transmitter with extended power range and related radio frequency transmission method |
CN106788513B (zh) * | 2017-02-10 | 2019-05-03 | 安徽白鹭电子科技有限公司 | 双通道自识别稳幅接收机 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0653753A (ja) | 1992-07-29 | 1994-02-25 | Nec Corp | 電力増幅装置 |
JPH06196955A (ja) | 1992-12-24 | 1994-07-15 | Oki Electric Ind Co Ltd | 電力増幅装置 |
US5530923A (en) * | 1994-03-30 | 1996-06-25 | Nokia Mobile Phones Ltd. | Dual mode transmission system with switched linear amplifier |
JPH09148852A (ja) | 1995-11-24 | 1997-06-06 | Matsushita Electric Ind Co Ltd | 送信出力可変装置 |
JPH09205333A (ja) * | 1996-01-24 | 1997-08-05 | Sony Corp | 電力増幅回路 |
-
1998
- 1998-06-23 JP JP17610198A patent/JP3314806B2/ja not_active Expired - Fee Related
-
1999
- 1999-05-24 US US09/317,190 patent/US6201440B1/en not_active Expired - Fee Related
- 1999-06-23 CN CNB991085396A patent/CN1139183C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2000013163A (ja) | 2000-01-14 |
JP3314806B2 (ja) | 2002-08-19 |
CN1244066A (zh) | 2000-02-09 |
US6201440B1 (en) | 2001-03-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1139183C (zh) | 功率放大器及其控制电路 | |
EP1020026B1 (en) | Apparatus and method for amplifying a signal | |
CA2505189C (en) | Systems and methods of dynamic bias switching for radio frequency power amplifiers | |
US7466195B2 (en) | Error driven RF power amplifier control with increased efficiency | |
US5936464A (en) | Method and apparatus for reducing distortion in a high efficiency power amplifier | |
US7965140B2 (en) | Power amplifier | |
US20050233714A1 (en) | Variable gain amplifier for use in communications | |
US6696866B2 (en) | Method and apparatus for providing a supply voltage based on an envelope of a radio frequency signal | |
US9112463B2 (en) | Pulsed dynamic load modulation power amplifier circuit | |
KR20000005267A (ko) | 채널 심볼 조절을 이용하여 디지탈 변조 신호를 조절하는 방법및 장치ㅠ | |
CN1069003C (zh) | 放大器电路以及用于控制射频通讯系统中的放大器的方法 | |
CN1992549A (zh) | 用于优化射频放大器的栅极偏压的装置及其方法 | |
US20030164735A1 (en) | Method of adjusting gain and current consumption of a power amplifier circuit while maintaining linearity | |
EP0982851B1 (en) | A linear amplifier arrangement | |
CN1251399C (zh) | 用于补偿非线性失真的前馈放大设备 | |
CN1199502C (zh) | 自动增益控制电路的温度补偿电路 | |
CN1723615A (zh) | 通过动态调节增益和相位来保持无隔离器的功率放大器的线性 | |
US20070146077A1 (en) | Radio frequency power amplifier | |
US7023278B1 (en) | Digital power amplifier level control | |
KR101122383B1 (ko) | 선형성 개선을 위한 멀티 모드용 전력 증폭기 | |
CN1723613A (zh) | 通过动态切换有源器件来保持无隔离器的功率放大器的线性 | |
US20030119463A1 (en) | Apparatus and method for maintaining linearity of an RF receiver in a mobile communication system | |
CN1639967A (zh) | 具有不同模式的前级放大器 | |
CN1270571C (zh) | 移动通信终端的传输设备 | |
KR100381783B1 (ko) | 다단자동이득제어증폭단을제어하는디지탈제어회로 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: LENOVO INNOVATION CO., LTD. (HONGKONG) Free format text: FORMER OWNER: NEC CORP. Effective date: 20141127 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; TO: HONG KONG, CHINA |
|
TR01 | Transfer of patent right |
Effective date of registration: 20141127 Address after: Hongkong, China Patentee after: LENOVO INNOVATIONS Co.,Ltd.(HONG KONG) Address before: Tokyo, Japan Patentee before: NEC Corp. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040218 Termination date: 20150623 |
|
EXPY | Termination of patent right or utility model |