HK1045767A1 - 用於無線手機的功率放大器驅動系統 - Google Patents
用於無線手機的功率放大器驅動系統Info
- Publication number
- HK1045767A1 HK1045767A1 HK02106819.4A HK02106819A HK1045767A1 HK 1045767 A1 HK1045767 A1 HK 1045767A1 HK 02106819 A HK02106819 A HK 02106819A HK 1045767 A1 HK1045767 A1 HK 1045767A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- power amplifier
- wireless handset
- driver system
- amplifier driver
- handset
- Prior art date
Links
Classifications
-
- 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
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
- H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
- H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
- H03F3/45085—Long tailed pairs
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/328,927 US6339361B1 (en) | 1999-06-09 | 1999-06-09 | Power amplifier driver system for wireless handset |
PCT/US2000/015684 WO2000076063A1 (en) | 1999-06-09 | 2000-06-08 | Power amplifier driver system for wireless handset |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1045767A1 true HK1045767A1 (zh) | 2002-12-06 |
Family
ID=23283079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK02106819.4A HK1045767A1 (zh) | 1999-06-09 | 2002-09-18 | 用於無線手機的功率放大器驅動系統 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6339361B1 (zh) |
EP (1) | EP1188232A1 (zh) |
JP (1) | JP2003501932A (zh) |
KR (1) | KR100650222B1 (zh) |
CN (1) | CN100384085C (zh) |
AU (1) | AU5599100A (zh) |
HK (1) | HK1045767A1 (zh) |
WO (1) | WO2000076063A1 (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6782244B2 (en) * | 2001-03-16 | 2004-08-24 | Rf Micro Devices, Inc. | Segmented power amplifier and method of control |
US6614300B2 (en) * | 2001-08-27 | 2003-09-02 | Nokia Corporation | Dual current mirror power amplifier bias control |
JP2005506750A (ja) * | 2001-10-16 | 2005-03-03 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 無線周波数電力増幅器回路 |
FR2836306B1 (fr) * | 2002-02-15 | 2004-07-16 | St Microelectronics Sa | Transconducteur a-ab |
FI116870B (fi) * | 2003-06-19 | 2006-03-15 | Nokia Corp | Järjestely energian säästämiseksi lähettimessä sekä radiolaite |
US7439806B2 (en) * | 2007-02-27 | 2008-10-21 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Bias control circuit and method of controlling bias of RF power amplifier |
TWI430565B (zh) * | 2010-12-10 | 2014-03-11 | Novatek Microelectronics Corp | 可調適放大電路 |
CN102545799B (zh) * | 2010-12-30 | 2015-05-20 | 联咏科技股份有限公司 | 可调适放大电路 |
GB2577602B (en) | 2018-08-01 | 2023-01-18 | Skyworks Solutions Inc | Variable power amplifier bias impedance |
US11303255B2 (en) | 2019-07-22 | 2022-04-12 | Skyworks Solutions, Inc. | Apparatus and methods for adaptive power amplifier biasing |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5624410B2 (zh) * | 1973-12-01 | 1981-06-05 | ||
JPS54104760A (en) * | 1978-02-03 | 1979-08-17 | Nec Corp | Amplifier of low power consumption type |
US4257009A (en) * | 1979-05-23 | 1981-03-17 | Rca Corporation | Inhibit circuit for a differential amplifier |
US4446440A (en) * | 1982-01-26 | 1984-05-01 | Hewlett-Packard Company | Dual mode amplifier |
JPH0821819B2 (ja) * | 1990-08-30 | 1996-03-04 | 三洋電機株式会社 | 増幅回路 |
JP2703667B2 (ja) | 1991-01-10 | 1998-01-26 | 三菱電機株式会社 | 電力増幅装置 |
JPH06164249A (ja) | 1992-11-25 | 1994-06-10 | Nec Corp | 可変利得増幅回路 |
US5432473A (en) * | 1993-07-14 | 1995-07-11 | Nokia Mobile Phones, Limited | Dual mode amplifier with bias control |
FR2716313B1 (fr) | 1994-02-11 | 1996-04-12 | Alcatel Mobile Comm France | Dispositif de commande de la polarisation d'un amplificateur. |
US5530923A (en) * | 1994-03-30 | 1996-06-25 | Nokia Mobile Phones Ltd. | Dual mode transmission system with switched linear amplifier |
US5838807A (en) * | 1995-10-19 | 1998-11-17 | Mitel Semiconductor, Inc. | Trimmable variable compression amplifier for hearing aid |
US5880631A (en) * | 1996-02-28 | 1999-03-09 | Qualcomm Incorporated | High dynamic range variable gain amplifier |
US5757230A (en) * | 1996-05-28 | 1998-05-26 | Analog Devices, Inc. | Variable gain CMOS amplifier |
US5907798A (en) * | 1996-06-21 | 1999-05-25 | Lucent Technologies Inc. | Wireless telephone intermodulation performance enhancement techniques |
JPH1022756A (ja) * | 1996-07-04 | 1998-01-23 | Mitsubishi Electric Corp | 無線送信機およびその送信制御方法 |
FI106413B (fi) | 1996-07-11 | 2001-01-31 | Nokia Mobile Phones Ltd | Lineaarisen tehovahvistimen tehonsäätöpiiri |
US6148220A (en) | 1997-04-25 | 2000-11-14 | Triquint Semiconductor, Inc. | Battery life extending technique for mobile wireless applications |
US6107878A (en) * | 1998-08-06 | 2000-08-22 | Qualcomm Incorporated | Automatic gain control circuit for controlling multiple variable gain amplifier stages while estimating received signal power |
-
1999
- 1999-06-09 US US09/328,927 patent/US6339361B1/en not_active Expired - Lifetime
-
2000
- 2000-06-08 CN CNB008101272A patent/CN100384085C/zh not_active Expired - Lifetime
- 2000-06-08 KR KR1020017015828A patent/KR100650222B1/ko active IP Right Grant
- 2000-06-08 AU AU55991/00A patent/AU5599100A/en not_active Abandoned
- 2000-06-08 JP JP2001502229A patent/JP2003501932A/ja active Pending
- 2000-06-08 EP EP00941262A patent/EP1188232A1/en not_active Withdrawn
- 2000-06-08 WO PCT/US2000/015684 patent/WO2000076063A1/en not_active Application Discontinuation
-
2002
- 2002-09-18 HK HK02106819.4A patent/HK1045767A1/zh unknown
Also Published As
Publication number | Publication date |
---|---|
AU5599100A (en) | 2000-12-28 |
CN100384085C (zh) | 2008-04-23 |
US6339361B1 (en) | 2002-01-15 |
JP2003501932A (ja) | 2003-01-14 |
KR20020019459A (ko) | 2002-03-12 |
EP1188232A1 (en) | 2002-03-20 |
WO2000076063A1 (en) | 2000-12-14 |
KR100650222B1 (ko) | 2006-11-24 |
CN1360753A (zh) | 2002-07-24 |
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