WO2002029969A3 - Power control of switched-mode power amplifiers with one or more stages - Google Patents

Power control of switched-mode power amplifiers with one or more stages Download PDF

Info

Publication number
WO2002029969A3
WO2002029969A3 PCT/US2001/031523 US0131523W WO0229969A3 WO 2002029969 A3 WO2002029969 A3 WO 2002029969A3 US 0131523 W US0131523 W US 0131523W WO 0229969 A3 WO0229969 A3 WO 0229969A3
Authority
WO
WIPO (PCT)
Prior art keywords
amplifier
switched
hard
stages
amplification stage
Prior art date
Application number
PCT/US2001/031523
Other languages
French (fr)
Other versions
WO2002029969A2 (en
Inventor
Stephan V Schell
Wendell B Sander
Ronald A Meck
Original Assignee
Tropian Inc
Stephan V Schell
Wendell B Sander
Ronald A Meck
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 Tropian Inc, Stephan V Schell, Wendell B Sander, Ronald A Meck filed Critical Tropian Inc
Priority to AU2001296740A priority Critical patent/AU2001296740A1/en
Priority to EP01977635A priority patent/EP1362415A2/en
Priority to KR1020037004889A priority patent/KR100831149B1/en
Priority to JP2002533469A priority patent/JP2004529514A/en
Publication of WO2002029969A2 publication Critical patent/WO2002029969A2/en
Publication of WO2002029969A3 publication Critical patent/WO2002029969A3/en

Links

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
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C5/00—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal
    • 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
    • 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
    • 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
    • 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
    • H03F1/0244—Stepped control
    • 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
    • H03F1/0244—Stepped control
    • H03F1/025—Stepped 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
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2178—Class D power amplifiers; Switching amplifiers using more than one switch or switching amplifier in parallel or in series
    • 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
    • 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
    • H03G3/3047—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers for intermittent signals, e.g. burst signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/324—An amplitude modulator or demodulator being used in the amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/405—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising more than three power stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/504—Indexing scheme relating to amplifiers the supply voltage or current being continuously controlled by a controlling signal, e.g. the controlling signal of a transistor implemented as variable resistor in a supply path for, an IC-block showed amplifier

Abstract

This invention controls and modulates switched-mode power amplifiers to enable the production of signals that include amplitude modulation (and possibly, but not necessarily, phase modulation), the average power of which may be controlled over a potentially wide range. The signal applied to the power supply port of the amplifier (1211,1201) is varied to control the modulation characteristics of the amplifier output signal. A final amplification stage (1201) is repeatedly driven by a drive signal between hard-on and hard-off states, without operating in a linear operating region for a specific period. The amplification stage (1211,1201) is controlled without continuous frequent measurement and feedback adjustement of variable output signal of amplifier.
PCT/US2001/031523 2000-10-06 2001-10-09 Power control of switched-mode power amplifiers with one or more stages WO2002029969A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2001296740A AU2001296740A1 (en) 2000-10-06 2001-10-09 Power control of switched-mode power amplifiers with one or more stages
EP01977635A EP1362415A2 (en) 2000-10-06 2001-10-09 Power control of switched-mode power amplifiers with one or more stages
KR1020037004889A KR100831149B1 (en) 2000-10-06 2001-10-09 Power control and modulation of switched-mode power amplifiers with one or more stages
JP2002533469A JP2004529514A (en) 2000-10-06 2001-10-09 Power control and modulation of switching power amplifiers with one or more stages

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/684,497 2000-10-06
US09/684,497 US6734724B1 (en) 2000-10-06 2000-10-06 Power control and modulation of switched-mode power amplifiers with one or more stages

Publications (2)

Publication Number Publication Date
WO2002029969A2 WO2002029969A2 (en) 2002-04-11
WO2002029969A3 true WO2002029969A3 (en) 2003-09-12

Family

ID=24748282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/031523 WO2002029969A2 (en) 2000-10-06 2001-10-09 Power control of switched-mode power amplifiers with one or more stages

Country Status (8)

Country Link
US (6) US6734724B1 (en)
EP (1) EP1362415A2 (en)
JP (1) JP2004529514A (en)
KR (1) KR100831149B1 (en)
CN (2) CN100413213C (en)
AU (1) AU2001296740A1 (en)
TW (1) TWI266473B (en)
WO (1) WO2002029969A2 (en)

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US20050127992A1 (en) 2005-06-16
JP2004529514A (en) 2004-09-24
CN1470102A (en) 2004-01-21
AU2001296740A1 (en) 2002-04-15
US7042282B2 (en) 2006-05-09
US7292105B2 (en) 2007-11-06
WO2002029969A2 (en) 2002-04-11
US7755422B2 (en) 2010-07-13
US7212069B2 (en) 2007-05-01
CN101320959A (en) 2008-12-10
US20080094137A1 (en) 2008-04-24
US6734724B1 (en) 2004-05-11
TWI266473B (en) 2006-11-11
US20070063765A1 (en) 2007-03-22
CN100413213C (en) 2008-08-20
EP1362415A2 (en) 2003-11-19
US20060244523A1 (en) 2006-11-02
KR20030045820A (en) 2003-06-11
US6844776B2 (en) 2005-01-18
KR100831149B1 (en) 2008-05-20

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