AU2002220114A1 - Multiple-voltage supply power amplifier with dynamic headroom control - Google Patents

Multiple-voltage supply power amplifier with dynamic headroom control

Info

Publication number
AU2002220114A1
AU2002220114A1 AU2002220114A AU2011402A AU2002220114A1 AU 2002220114 A1 AU2002220114 A1 AU 2002220114A1 AU 2002220114 A AU2002220114 A AU 2002220114A AU 2011402 A AU2011402 A AU 2011402A AU 2002220114 A1 AU2002220114 A1 AU 2002220114A1
Authority
AU
Australia
Prior art keywords
voltage
output
stage
switch
headroom
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.)
Abandoned
Application number
AU2002220114A
Inventor
Lanny Lewyn
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.)
Lewyn Consulting Inc
Original Assignee
Lewyn Consulting Inc
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.)
Filing date
Publication date
Application filed by Lewyn Consulting Inc filed Critical Lewyn Consulting Inc
Publication of AU2002220114A1 publication Critical patent/AU2002220114A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3069—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output
    • H03F3/3076—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output with symmetrical driving of the end stage
    • 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
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • 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
    • H03F3/45094—Folded cascode stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • 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
    • H03F2203/30—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor
    • H03F2203/30078—A resistor being added in the pull stage of the SEPP amplifier
    • 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
    • H03F2203/30—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor
    • H03F2203/30111—A resistor being added in the push stage of the SEPP amplifier
    • 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
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45631—Indexing scheme relating to differential amplifiers the LC comprising one or more capacitors, e.g. coupling capacitors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

A monolithic integrated circuit amplifier has a gain stage and a buffer stage. The buffer stage includes an output stage and two separate voltage supplies, the second of which has a greater magnitude than the first. Switching circuitry is included that is connected to the output stage via a regulator bus. When an output demand voltage is less than a switch-over threshold, current to the output stage is provided substantially from the first voltage supply; when the output demand voltage is greater than the switch-over threshold, current to the output stage is provided substantially from the second voltage supply. Collector voltage at the output stage is dynamically controlled to be greater than the emitter voltage by a difference voltage that increases proportionally as output voltage increases above the switch-over threshold. This difference voltage is commonly referred to as "headroom." The dynamic headroom control circuitry preferably includes means for predictably setting and controlling the headroom voltage at switch-over and smoothly increasing the headroom voltage up to maximum output voltage.
AU2002220114A 2000-11-01 2001-11-01 Multiple-voltage supply power amplifier with dynamic headroom control Abandoned AU2002220114A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US09704452 2000-11-01
US09/704,452 US6417736B1 (en) 2000-11-01 2000-11-01 Multiple-voltage supply power amplifier with dynamic headroom control
US09/704,452 2000-11-01
PCT/US2001/045737 WO2002037672A2 (en) 2000-11-01 2001-11-01 Multiple-voltage supply power amplifier with dynamic headroom control

Publications (1)

Publication Number Publication Date
AU2002220114A1 true AU2002220114A1 (en) 2002-05-15

Family

ID=24829548

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002220114A Abandoned AU2002220114A1 (en) 2000-11-01 2001-11-01 Multiple-voltage supply power amplifier with dynamic headroom control

Country Status (8)

Country Link
US (1) US6417736B1 (en)
EP (1) EP1330871B1 (en)
JP (1) JP2004513553A (en)
AT (1) ATE262748T1 (en)
AU (1) AU2002220114A1 (en)
CA (1) CA2425668C (en)
DE (1) DE60102486T2 (en)
WO (1) WO2002037672A2 (en)

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DE10135993A1 (en) * 2001-07-24 2003-05-08 Siemens Ag Method for reducing the power loss in linear amplifiers and associated device
US6611169B2 (en) * 2001-10-01 2003-08-26 Gibson Guitar Corp. Power supply regulation and protection circuit for audio power amplifier
US6614306B1 (en) * 2001-10-19 2003-09-02 National Semiconductor Corporation Bias circuit for class AB high frequency amplifiers
CA2361967A1 (en) * 2001-11-14 2003-05-14 Catena Networks Canada Inc. A system and method for reducing power dissipation for dsl circuits
US7064602B2 (en) * 2004-05-05 2006-06-20 Rambus Inc. Dynamic gain compensation and calibration
US8521204B2 (en) * 2004-09-30 2013-08-27 Motorola Mobility Llc Signal configuration based transmitter adjustment in wireless communication devices
WO2006086652A2 (en) 2005-02-07 2006-08-17 California Micro Devices Automatic voltage selection for series driven leds
WO2007035883A2 (en) * 2005-09-20 2007-03-29 California Micro Devices Corporation Driving parallel strings of series connected leds
JP2007150380A (en) * 2005-11-24 2007-06-14 Hitachi High-Technologies Corp Operational amplifier and scanning electron microscope using the same
US7408414B2 (en) * 2006-03-21 2008-08-05 Leadis Technology, Inc. Distributed class G type amplifier switching method
US20070236295A1 (en) * 2006-03-21 2007-10-11 Leadis Technology, Inc. FM Power Amplifier With Antenna Power Control
US20070285176A1 (en) * 2006-03-21 2007-12-13 Leadis Technology, Inc. Phase-Slipping Phase-Locked Loop
US7498880B2 (en) * 2006-03-21 2009-03-03 Leadis Technology, Inc. Class L amplifier
US7522433B2 (en) * 2006-03-21 2009-04-21 Fairchild Semiconductor Corporation Efficient voltage rail generation
US8081785B2 (en) * 2006-03-21 2011-12-20 Fairchild Semiconductor Corporation High efficiency converter providing switching amplifier bias
US8081777B2 (en) 2006-03-21 2011-12-20 Fairchild Semiconductor Corporation Volume-based adaptive biasing
US8670876B2 (en) * 2006-04-04 2014-03-11 Utilidata, Inc. Electric power control system and process
US9622190B2 (en) 2006-07-25 2017-04-11 Google Technology Holdings LLC Spectrum emission level variation in schedulable wireless communication terminal
US8179372B1 (en) 2007-10-01 2012-05-15 Integrated Device Technology, Inc. Electronic display with array context-sensitive search (ACS) technology
US7733178B1 (en) 2007-10-24 2010-06-08 Fairchild Semiconductor Corporation High efficiency audio amplifier
US7750732B1 (en) 2007-12-04 2010-07-06 Fairchild Semiconductor Corporation Adaptive rail amplifier (ARA) technology
US7768353B2 (en) 2008-06-13 2010-08-03 Samsung Electro-Mechanics Company, Ltd. Systems and methods for switching mode power amplifier control
US8363822B2 (en) * 2009-08-07 2013-01-29 Microsemi Semiconductor (U.S.) Inc. Method and apparatus for battery switching during ringing
US9565655B2 (en) 2011-04-13 2017-02-07 Google Technology Holdings LLC Method and apparatus to detect the transmission bandwidth configuration of a channel in connection with reducing interference between channels in wireless communication systems
US8874052B2 (en) 2012-11-15 2014-10-28 Motorola Mobility Llc Method and apparatus for improving efficiency and distortion leakage in a wireless power amplifier
US8866547B2 (en) * 2013-01-28 2014-10-21 Qualcomm Incorporated Dynamic headroom for envelope tracking
US8923492B2 (en) * 2013-03-05 2014-12-30 Broadcom Corporation Integrated CMOS multi-mode drivers
US9319495B2 (en) 2013-08-06 2016-04-19 Aura Semiconductor Pvt. Ltd Power amplifier providing high efficiency
US9729964B2 (en) 2014-06-26 2017-08-08 Apple Inc. Audio apparatus having dynamic ground break resistance
US9397621B2 (en) * 2014-07-30 2016-07-19 Eridan Communications, Inc. Limiting driver for switch-mode power amplifier
US9886048B2 (en) 2016-05-04 2018-02-06 Qualcomm Incorporated Headroom control in regulator systems
GB2560045B (en) * 2017-02-28 2019-10-30 Cirrus Logic Int Semiconductor Ltd Amplifiers
WO2019082793A1 (en) * 2017-10-23 2019-05-02 株式会社村田製作所 High-frequency power amplification circuit and communication device
CN116937960B (en) * 2023-09-18 2023-11-28 新誉集团有限公司 Voltage compensation method and system of inverter, electronic equipment and storage medium

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3376388A (en) * 1963-09-26 1968-04-02 Martin G. Reiffin Direct-current-coupled transistor power amplifiers
NL8500769A (en) * 1985-03-18 1986-10-16 Philips Nv AMPLIFIER CIRCUIT.
US4961032A (en) * 1988-12-29 1990-10-02 Rca Licensing Corporation Dual power source output amplifier
US5510754A (en) * 1994-11-18 1996-04-23 National Semiconductor Corporation Fast slewing amplifier using dynamic current mirrors
US5942941A (en) * 1997-06-17 1999-08-24 Texas Instruments Incorporated Base-current compensation circuit to reduce input offset voltage in a bipolar operational amplifier
US6028486A (en) * 1997-10-07 2000-02-22 Telefonaktiebolaget Lm Ericsson Method and apparatus for reducing power dissipation in multi-carrier amplifiers
US6236273B1 (en) * 1999-11-18 2001-05-22 Pairgain Technologies, Inc. High efficiency power amplifier

Also Published As

Publication number Publication date
EP1330871B1 (en) 2004-03-24
CA2425668A1 (en) 2002-05-10
JP2004513553A (en) 2004-04-30
DE60102486D1 (en) 2004-04-29
ATE262748T1 (en) 2004-04-15
US6417736B1 (en) 2002-07-09
WO2002037672A3 (en) 2002-07-18
WO2002037672A2 (en) 2002-05-10
DE60102486T2 (en) 2005-02-24
EP1330871A2 (en) 2003-07-30
CA2425668C (en) 2010-09-28

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