KR900002332B1 - 송신기의 출력전력 제어장치 - Google Patents
송신기의 출력전력 제어장치 Download PDFInfo
- Publication number
- KR900002332B1 KR900002332B1 KR1019850008214A KR850008214A KR900002332B1 KR 900002332 B1 KR900002332 B1 KR 900002332B1 KR 1019850008214 A KR1019850008214 A KR 1019850008214A KR 850008214 A KR850008214 A KR 850008214A KR 900002332 B1 KR900002332 B1 KR 900002332B1
- Authority
- KR
- South Korea
- Prior art keywords
- voltage
- output
- amplifier
- high frequency
- transmission power
- 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
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (1)
- 송신되는 고주파 신호를 증폭하여 송신전력을 출력하는 전력증폭기(1)와, 상기 송신 전력을 검출하여 그 송신전력 강도에 따른 검출출력을 출력하는 결합기(2)와, 상기 검출출력에 의하여 상기 송신전력 강도에 대응하는 값의 검파전압을 출력하는 검파기(4)와, 상기 검파전압과 기준전압을 비교하여 양전압간의 차전압을 증폭하는 비교증폭기(5)와, 이 비교증폭기의 출력전압을 도입하여 상기 전력증폭기의 송신전력강도를 제어하는 전압제어회로(6)를 갖춘 송신기의 출력전력 제어장치에 있어서, 상기 검파기(4)의 검파전압의 대소에 따라 감쇄량이 대소로 가변되는 가변 고주파감쇄기(16)를 상기 비교증폭기(5)의 전단에 설치함과 동시에 상기 기준전압은 상기 송신전력강도에 대응하여 설정하므로서 상기 비교증폭기(5)의 다이나믹 레인지를 확대하는 것을 특징으로 하는 송신기의 출력전력 제어장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60051302A JPS61210728A (ja) | 1985-03-14 | 1985-03-14 | 送信機の出力電力制御装置 |
JP85-51302 | 1985-03-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR860007795A KR860007795A (ko) | 1986-10-17 |
KR900002332B1 true KR900002332B1 (ko) | 1990-04-11 |
Family
ID=12883120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019850008214A Expired KR900002332B1 (ko) | 1985-03-14 | 1985-11-04 | 송신기의 출력전력 제어장치 |
Country Status (3)
Country | Link |
---|---|
US (1) | US4709403A (ko) |
JP (1) | JPS61210728A (ko) |
KR (1) | KR900002332B1 (ko) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63226124A (ja) * | 1986-10-29 | 1988-09-20 | Oki Electric Ind Co Ltd | 無線装置用レベル制御回路 |
US4939786A (en) * | 1987-03-09 | 1990-07-03 | Motorola, Inc. | Adaptive thermal protection for a power amplifier by remote sense |
JPH02147939U (ko) * | 1989-05-17 | 1990-12-17 | ||
US5006812A (en) * | 1989-08-01 | 1991-04-09 | Rockwell International Corporation | Power amplifier with built-in test circuit |
JP2647730B2 (ja) * | 1990-06-01 | 1997-08-27 | ソニー株式会社 | 移動電話装置 |
JPH04103207A (ja) * | 1990-08-22 | 1992-04-06 | Mitsubishi Electric Corp | リニア変調波自動電力制御装置 |
JP2871889B2 (ja) * | 1991-04-16 | 1999-03-17 | 三菱電機株式会社 | 高周波電力増幅装置 |
JP2776071B2 (ja) * | 1991-07-19 | 1998-07-16 | 松下電器産業株式会社 | 送信出力包絡線検波回路および線形送信回路 |
US5303394A (en) * | 1991-08-09 | 1994-04-12 | Rockwell International | Feedback stabilized Q multiplier filter circuit |
US5204637A (en) * | 1992-04-17 | 1993-04-20 | Hughes Aircraft Company | Power detection technique for automatic amplifier power control |
JPH08501197A (ja) * | 1993-03-26 | 1996-02-06 | クァルコム・インコーポレーテッド | 電力増幅器バイアス制御回路および方法 |
US5669066A (en) * | 1993-05-14 | 1997-09-16 | Telefonaktiebolaget Lm Ericsson | Dynamic control of transmitting power at a transmitter and attenuation at a receiver |
US5339046A (en) * | 1993-06-03 | 1994-08-16 | Alps Electric Co., Ltd. | Temperature compensated variable gain amplifier |
FI97177C (fi) * | 1993-09-06 | 1996-10-25 | Nokia Telecommunications Oy | Menetelmä ja järjestely suurtaajuustehovahvistimen toiminnan ohjaamiseen |
FR2708399B1 (fr) * | 1993-06-30 | 1995-08-25 | Alcatel Telspace | Système de commande de la polarisation d'un amplificateur. |
CA2135816C (en) * | 1993-11-19 | 2000-02-15 | Takashi Enoki | Transmission circuit with improved gain control loop |
KR970007602B1 (ko) * | 1994-05-31 | 1997-05-13 | 삼성전자 주식회사 | 전송기의 출력전력을 제어 및 측정하기 위한 장치 및 그에 따른 방법 |
DE69529395T2 (de) * | 1994-12-29 | 2003-11-20 | At & T Corp., New York | Leistungsverstärker mit grosser Dynamik |
US5678209A (en) * | 1995-03-31 | 1997-10-14 | Lucent Technologies Inc. | Transmit power level detection circuit with enhanced gain characteristics |
US5872481A (en) * | 1995-12-27 | 1999-02-16 | Qualcomm Incorporated | Efficient parallel-stage power amplifier |
US5974041A (en) * | 1995-12-27 | 1999-10-26 | Qualcomm Incorporated | Efficient parallel-stage power amplifier |
KR100212053B1 (ko) * | 1995-12-30 | 1999-08-02 | 윤종용 | 기지국 송출전력 자동 제어 장치 및 방법 |
US5854972A (en) * | 1996-05-16 | 1998-12-29 | Motorola, Inc. | Circuit for adjusting transmit power |
US6236863B1 (en) * | 1997-03-31 | 2001-05-22 | Oki Telecom, Inc. | Comprehensive transmitter power control system for radio telephones |
US6069525A (en) * | 1997-04-17 | 2000-05-30 | Qualcomm Incorporated | Dual-mode amplifier with high efficiency and high linearity |
US6928559B1 (en) * | 1997-06-27 | 2005-08-09 | Broadcom Corporation | Battery powered device with dynamic power and performance management |
JP2926576B1 (ja) * | 1998-04-03 | 1999-07-28 | 埼玉日本電気株式会社 | 無線電話装置 |
US6069526A (en) * | 1998-08-04 | 2000-05-30 | Qualcomm Incorporated | Partial or complete amplifier bypass |
US6466772B1 (en) * | 1998-09-25 | 2002-10-15 | Skyworks Solutions, Inc. | Apparatus and method for improving power control loop linearity |
KR100365793B1 (ko) * | 1999-12-31 | 2002-12-26 | 삼성전자 주식회사 | 무선단말기의 전력증폭기 전압제어 장치 |
DE50103752D1 (de) * | 2000-03-03 | 2004-10-28 | Siemens Ag | Verfahren und sendeschaltung zur erzeugung eines sendesignals |
JP2002152059A (ja) * | 2000-11-14 | 2002-05-24 | Sharp Corp | 送信電力制御回路 |
US20050032494A1 (en) * | 2003-08-04 | 2005-02-10 | Swant John M. | Receiver test system |
US7512386B2 (en) * | 2003-08-29 | 2009-03-31 | Nokia Corporation | Method and apparatus providing integrated load matching using adaptive power amplifier compensation |
US8536950B2 (en) | 2009-08-03 | 2013-09-17 | Qualcomm Incorporated | Multi-stage impedance matching |
US8102205B2 (en) | 2009-08-04 | 2012-01-24 | Qualcomm, Incorporated | Amplifier module with multiple operating modes |
US8929843B2 (en) | 2011-09-20 | 2015-01-06 | Qualcomm Incorporated | Antenna power coupler having a variable coupling factor |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3486128A (en) * | 1968-02-07 | 1969-12-23 | Us Army | Power amplifier for amplitude modulated transmitter |
US3662290A (en) * | 1970-08-05 | 1972-05-09 | Collins Radio Co | Automatic control for amplitude-modulated signal source |
US3900823A (en) * | 1973-03-28 | 1975-08-19 | Nathan O Sokal | Amplifying and processing apparatus for modulated carrier signals |
US4066965A (en) * | 1976-09-28 | 1978-01-03 | The United States Of America As Represented By The Secretary Of The Navy | RF GTWT Saturating circuit |
JPS54112111A (en) * | 1978-02-22 | 1979-09-01 | Nec Corp | Automatic power control system |
JPS6110327Y2 (ko) * | 1980-01-10 | 1986-04-03 | ||
JPS6041821A (ja) * | 1983-08-18 | 1985-03-05 | Nec Corp | 送信出力電力制御装置 |
-
1985
- 1985-03-14 JP JP60051302A patent/JPS61210728A/ja active Pending
- 1985-11-04 KR KR1019850008214A patent/KR900002332B1/ko not_active Expired
-
1986
- 1986-03-14 US US06/840,323 patent/US4709403A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR860007795A (ko) | 1986-10-17 |
US4709403A (en) | 1987-11-24 |
JPS61210728A (ja) | 1986-09-18 |
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