CN103329431B - 使用多电平脉冲宽度调制的音频放大器 - Google Patents

使用多电平脉冲宽度调制的音频放大器 Download PDF

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Publication number
CN103329431B
CN103329431B CN201180063192.5A CN201180063192A CN103329431B CN 103329431 B CN103329431 B CN 103329431B CN 201180063192 A CN201180063192 A CN 201180063192A CN 103329431 B CN103329431 B CN 103329431B
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China
Prior art keywords
pulse width
control signal
semiconductor switch
signal
switch
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Chinese (zh)
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CN103329431A (zh
Inventor
米克尔·霍耶尔比
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Cirrus Logic International Semiconductor Ltd
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Merus Audio ApS
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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
    • H03F1/0244—Stepped control
    • 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
    • H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/4837—Flying capacitor converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H03F3/187—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only in integrated circuits
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/487—Neutral point clamped inverters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/267—A capacitor based passive circuit, e.g. filter, being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/333—A frequency modulator or demodulator being used in the amplifier circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
CN201180063192.5A 2010-10-27 2011-10-27 使用多电平脉冲宽度调制的音频放大器 Active CN103329431B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610704361.3A CN106330117B (zh) 2010-10-27 2011-10-27 D类音频放大器和声音再现组件

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US40726210P 2010-10-27 2010-10-27
US61/407,262 2010-10-27
PCT/EP2011/068873 WO2012055968A1 (en) 2010-10-27 2011-10-27 Audio amplifier using multi-level pulse width modulation

Related Child Applications (1)

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CN201610704361.3A Division CN106330117B (zh) 2010-10-27 2011-10-27 D类音频放大器和声音再现组件

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CN103329431A CN103329431A (zh) 2013-09-25
CN103329431B true CN103329431B (zh) 2016-09-14

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CN201610704361.3A Active CN106330117B (zh) 2010-10-27 2011-10-27 D类音频放大器和声音再现组件
CN201180063192.5A Active CN103329431B (zh) 2010-10-27 2011-10-27 使用多电平脉冲宽度调制的音频放大器

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US (2) US9515617B2 (enExample)
EP (2) EP2633621B1 (enExample)
JP (2) JP5866369B2 (enExample)
KR (2) KR101815076B1 (enExample)
CN (2) CN106330117B (enExample)
DK (2) DK3048724T3 (enExample)
WO (1) WO2012055968A1 (enExample)

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US20170117851A1 (en) 2017-04-27
CN103329431A (zh) 2013-09-25
KR20180004835A (ko) 2018-01-12
JP2013541305A (ja) 2013-11-07
CN106330117A (zh) 2017-01-11
KR101947597B1 (ko) 2019-02-14
US20130223651A1 (en) 2013-08-29
KR20130132456A (ko) 2013-12-04
JP5866369B2 (ja) 2016-02-17
EP2633621A1 (en) 2013-09-04
WO2012055968A1 (en) 2012-05-03
KR101815076B1 (ko) 2018-01-30
DK2633621T3 (en) 2017-09-25
EP3048724B1 (en) 2017-06-14
JP2016042745A (ja) 2016-03-31
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US9515617B2 (en) 2016-12-06

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