KR102068105B1 - 조절 가능 루프 필터 특성들을 갖는 클래스 d 오디오 증폭기 - Google Patents

조절 가능 루프 필터 특성들을 갖는 클래스 d 오디오 증폭기 Download PDF

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KR102068105B1
KR102068105B1 KR1020147033787A KR20147033787A KR102068105B1 KR 102068105 B1 KR102068105 B1 KR 102068105B1 KR 1020147033787 A KR1020147033787 A KR 1020147033787A KR 20147033787 A KR20147033787 A KR 20147033787A KR 102068105 B1 KR102068105 B1 KR 102068105B1
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modulation
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KR20150016301A (ko
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미켈 호이어바이
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인피니언 테크놀로지스 오스트리아 아게
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    • 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
    • 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
    • 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
    • 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
    • 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
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
KR1020147033787A 2012-04-30 2013-04-24 조절 가능 루프 필터 특성들을 갖는 클래스 d 오디오 증폭기 Active KR102068105B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261640565P 2012-04-30 2012-04-30
US61/640,565 2012-04-30
PCT/EP2013/058450 WO2013164229A1 (en) 2012-04-30 2013-04-24 Class d audio amplifier with adjustable loop filter characteristics

Publications (2)

Publication Number Publication Date
KR20150016301A KR20150016301A (ko) 2015-02-11
KR102068105B1 true KR102068105B1 (ko) 2020-01-20

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KR1020147033787A Active KR102068105B1 (ko) 2012-04-30 2013-04-24 조절 가능 루프 필터 특성들을 갖는 클래스 d 오디오 증폭기

Country Status (7)

Country Link
US (1) US9564862B2 (enExample)
EP (1) EP2845314B1 (enExample)
JP (1) JP6325526B2 (enExample)
KR (1) KR102068105B1 (enExample)
CN (1) CN104272589B (enExample)
DK (1) DK2845314T3 (enExample)
WO (1) WO2013164229A1 (enExample)

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Also Published As

Publication number Publication date
CN104272589B (zh) 2017-10-24
JP2015515841A (ja) 2015-05-28
DK2845314T3 (en) 2016-10-03
CN104272589A (zh) 2015-01-07
US9564862B2 (en) 2017-02-07
KR20150016301A (ko) 2015-02-11
WO2013164229A1 (en) 2013-11-07
US20150288335A1 (en) 2015-10-08
JP6325526B2 (ja) 2018-05-16
EP2845314A1 (en) 2015-03-11
EP2845314B1 (en) 2016-06-29

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