AU2002223882A1 - Amplifier circuit - Google Patents

Amplifier circuit

Info

Publication number: AU2002223882A1
Authority: AU; Australia
Prior art keywords: amplifier circuit; amplifier; circuit
Prior art date: 2000-11-24
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.): Abandoned

Application number

AU2002223882A

Inventor

Mark Harris

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Qualcomm Inc

Original Assignee

Qualcomm UK Ltd

Priority date (The priority date 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 date listed.)

2000-11-24

Filing date

2001-11-23

Publication date

2002-06-03

2001-11-23 Application filed by Qualcomm UK Ltd filed Critical Qualcomm UK Ltd

2002-06-03 Publication of AU2002223882A1 publication Critical patent/AU2002223882A1/en

Status Abandoned legal-status Critical Current

Classifications

- 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
- H03F1/0211—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 supply voltage or current
- H03F1/0216—Continuous control
- H03F1/0233—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Amplifiers (AREA)

AU2002223882A 2000-11-24 2001-11-23 Amplifier circuit Abandoned AU2002223882A1 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
GBGB0028689.8A GB0028689D0 (en)	2000-11-24	2000-11-24	Amplifier circuit
GB0028689		2000-11-24
PCT/GB2001/005182 WO2002043240A1 (en)	2000-11-24	2001-11-23	Amplifier circuit

Publications (1)

Publication Number	Publication Date
AU2002223882A1 true AU2002223882A1 (en)	2002-06-03

Family

ID=9903818

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU2002223882A Abandoned AU2002223882A1 (en)	2000-11-24	2001-11-23	Amplifier circuit

Country Status (10)

Country	Link
US (1)	US7196584B2 (en)
EP (1)	EP1348254B1 (en)
JP (2)	JP2004515101A (en)
CN (1)	CN100347951C (en)
AU (1)	AU2002223882A1 (en)
BR (1)	BR0115599A (en)
CA (1)	CA2429740A1 (en)
GB (1)	GB0028689D0 (en)
IL (1)	IL156052A0 (en)
WO (1)	WO2002043240A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6725021B1 (en) *	2002-06-20	2004-04-20	Motorola, Inc.	Method for tuning an envelope tracking amplification system
GB2427772B (en)	2002-09-26	2007-04-11	Qualcomm Inc	A transmitter
US7221907B2 (en)	2003-02-12	2007-05-22	The Boeing Company	On orbit variable power high power amplifiers for a satellite communications system
US8024055B1 (en)	2004-05-15	2011-09-20	Sonos, Inc.	Method and system for controlling amplifiers
FI119575B (en)	2004-06-29	2008-12-31	Esju Oy	The power supply and method adjust the operating power
GB2425418B (en) *	2005-04-22	2007-09-19	Motorola Inc	Amplifier circuit and rf transmitter incorporating the circuit
DE102005061572B4 (en) *	2005-06-28	2008-05-29	Infineon Technologies Ag	Power amplifier arrangement, in particular for mobile radio, and method for determining a performance parameter
US7443244B2 (en) *	2005-07-14	2008-10-28	Motorola, Inc.	Method and apparatus for controlling a power amplifier supply voltage
GB2446351B (en) *	2005-11-28	2011-07-20	Paragon Comm Ltd	Method and apparatus for optimizing current consumption of amplifiers with power control
US8258872B1 (en)	2007-06-11	2012-09-04	Sonos, Inc.	Multi-tier power supply for audio amplifiers
GB0715254D0 (en)	2007-08-03	2007-09-12	Wolfson Ltd	Amplifier circuit
US8378746B2 (en) *	2008-07-11	2013-02-19	Integrated Device Technology, Inc	Voltage-mode line driving circuit having adaptive impedance matching
US9166533B2 (en)	2009-07-30	2015-10-20	Qualcomm Incorporated	Bias current monitor and control mechanism for amplifiers
US8816775B2 (en) *	2012-09-13	2014-08-26	Freescale Semiconductor, Inc.	Quiescent current determination using in-package voltage measurements
US9136809B2 (en)	2012-11-30	2015-09-15	Qualcomm Incorporated	Digital bias adjustment in a variable supply radio frequency power amplifier
CN103248328B (en) *	2013-05-15	2017-05-24	海能达通信股份有限公司	Power amplifier and utilization method
US9244516B2 (en)	2013-09-30	2016-01-26	Sonos, Inc.	Media playback system using standby mode in a mesh network

Family Cites Families (23)

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Publication number	Priority date	Publication date	Assignee	Title
JPH0669002B2 (en) *	1986-05-23	1994-08-31	日本電信電話株式会社	High frequency amplifier
US5081425A (en) *	1990-05-24	1992-01-14	E-Systems, Inc.	Vswr adaptive power amplifier system
US5642378A (en) *	1994-11-17	1997-06-24	Denheyer; Brian John	Dual mode analog and digital cellular phone
GB2345211B (en) *	1995-05-25	2000-08-09	Motorola Gmbh	Programming means for setting optimal bias voltages
US5710523A (en) *	1996-01-16	1998-01-20	Trw Inc.	Low noise-low distortion hemt low noise amplifier (LNA) with monolithic tunable HBT active feedback
GB2316561B (en) *	1996-08-22	2001-01-03	Motorola Ltd	Improved power amplifier and related method
JPH10242770A (en) *	1997-02-28	1998-09-11	Akita Denshi Kk	Amplifier circuit and its control method, amplifier circuit module and portable telephone set
US6148220A (en) *	1997-04-25	2000-11-14	Triquint Semiconductor, Inc.	Battery life extending technique for mobile wireless applications
JPH10322144A (en) *	1997-05-16	1998-12-04	Matsushita Electric Ind Co Ltd	Power amplifier and method for adjusting the same
DE19732437C1 (en) *	1997-07-28	1998-12-24	Siemens Ag	Transistor amplifier stage
US5977883A (en) *	1997-07-30	1999-11-02	Leonard; William H.	Traffic light control apparatus for emergency vehicles
US6025754A (en) *	1997-11-03	2000-02-15	Harris Corporation	Envelope modulated amplifier bias control and method
US6223056B1 (en) *	1997-12-31	2001-04-24	Samsung Electronics Co., Ltd.	Systems and methods for dynamically controlling a variable power amplifier
US6081161A (en) *	1998-05-18	2000-06-27	Omnipoint Corporation	Amplifier with dynamatically adaptable supply voltage
JP3314724B2 (en) *	1998-06-02	2002-08-12	日本電気株式会社	Power amplifier circuit and automatic power control method
US6327462B1 (en) *	1998-12-29	2001-12-04	Conexant Systems, Inc.	System and method for dynamically varying operational parameters of an amplifier
US6043707A (en) *	1999-01-07	2000-03-28	Motorola, Inc.	Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier
US6198347B1 (en) *	1999-07-29	2001-03-06	Tropian, Inc.	Driving circuits for switch mode RF power amplifiers
US6630867B2 (en) *	2000-02-24	2003-10-07	Skyworks Solutions, Inc.	Power amplifier with provisions for varying operating voltage based upon power amplifier output power
JP2002151982A (en) *	2000-11-15	2002-05-24	Hitachi Ltd	High frequency power amplifier circuit and wireless communication unit, and wireless communication system
US6614309B1 (en) *	2002-02-21	2003-09-02	Ericsson Inc.	Dynamic bias controller for power amplifier circuits
US6794935B2 (en) *	2002-10-17	2004-09-21	Motorola Inc.	Power amplification circuit and method for supplying power at a plurality of desired power output levels
US6897730B2 (en) *	2003-03-04	2005-05-24	Silicon Laboratories Inc.	Method and apparatus for controlling the output power of a power amplifier

2000
- 2000-11-24 GB GBGB0028689.8A patent/GB0028689D0/en not_active Ceased
2001
- 2001-11-23 CA CA002429740A patent/CA2429740A1/en not_active Abandoned
- 2001-11-23 JP JP2002544847A patent/JP2004515101A/en not_active Withdrawn
- 2001-11-23 WO PCT/GB2001/005182 patent/WO2002043240A1/en active Application Filing
- 2001-11-23 BR BR0115599-7A patent/BR0115599A/en not_active Application Discontinuation
- 2001-11-23 IL IL15605201A patent/IL156052A0/en unknown
- 2001-11-23 US US10/432,802 patent/US7196584B2/en not_active Expired - Lifetime
- 2001-11-23 CN CNB018222145A patent/CN100347951C/en not_active Expired - Fee Related
- 2001-11-23 EP EP01997889.9A patent/EP1348254B1/en not_active Expired - Lifetime
- 2001-11-23 AU AU2002223882A patent/AU2002223882A1/en not_active Abandoned
2009
- 2009-08-14 JP JP2009188030A patent/JP5155265B2/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
CN100347951C (en)	2007-11-07
EP1348254B1 (en)	2014-11-05
WO2002043240A1 (en)	2002-05-30
GB0028689D0 (en)	2001-01-10
CA2429740A1 (en)	2002-05-30
JP2004515101A (en)	2004-05-20
JP2009296633A (en)	2009-12-17
JP5155265B2 (en)	2013-03-06
IL156052A0 (en)	2003-12-23
BR0115599A (en)	2003-09-02
US7196584B2 (en)	2007-03-27
EP1348254A1 (en)	2003-10-01
CN1488189A (en)	2004-04-07
US20040113695A1 (en)	2004-06-17

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EP1292020A4 (en)	2004-12-29	Amplifier circuit
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AU2001258255A1 (en)	2001-11-29	Substituted benzoylcyclohexenones
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AU1658301A (en)	2001-05-30	Multi-stage amplifier circuit
AUPR752101A0 (en)	2001-09-27	Amplifier improvements
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AU4430101A (en)	2001-10-03	Loudspeakers
AU2002223604A1 (en)	2002-07-11	Substituted phenyluracils
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GB9906973D0 (en)	1999-05-19	Sense amplifier circuit
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AU2001276507A1 (en)	2002-03-04	Power amplifier arrangement
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