KR100704859B1 - 다중 레퍼런스, 고정밀 스위칭 증폭기 - Google Patents

다중 레퍼런스, 고정밀 스위칭 증폭기 Download PDF

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KR100704859B1
KR100704859B1 KR1020017005997A KR20017005997A KR100704859B1 KR 100704859 B1 KR100704859 B1 KR 100704859B1 KR 1020017005997 A KR1020017005997 A KR 1020017005997A KR 20017005997 A KR20017005997 A KR 20017005997A KR 100704859 B1 KR100704859 B1 KR 100704859B1
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voltage reference
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electrically controlled
voltage
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KR20010089447A (ko
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래리 키른
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래리 키른
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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
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/342—Pulse code modulation being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/516—Some amplifier stages of an amplifier use supply voltages of different value

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
KR1020017005997A 1998-11-12 1999-11-12 다중 레퍼런스, 고정밀 스위칭 증폭기 Expired - Fee Related KR100704859B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10794898P 1998-11-12 1998-11-12
US60/107,948 1998-11-12

Publications (2)

Publication Number Publication Date
KR20010089447A KR20010089447A (ko) 2001-10-06
KR100704859B1 true KR100704859B1 (ko) 2007-04-09

Family

ID=22319342

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020017005997A Expired - Fee Related KR100704859B1 (ko) 1998-11-12 1999-11-12 다중 레퍼런스, 고정밀 스위칭 증폭기

Country Status (12)

Country Link
US (1) US6535058B1 (enExample)
EP (1) EP1131886B1 (enExample)
JP (1) JP4707233B2 (enExample)
KR (1) KR100704859B1 (enExample)
CN (1) CN1199349C (enExample)
AT (1) ATE358907T1 (enExample)
AU (1) AU766843B2 (enExample)
BR (1) BR9915269A (enExample)
CA (1) CA2349181A1 (enExample)
DE (1) DE69935731T2 (enExample)
MX (1) MXPA01004786A (enExample)
WO (1) WO2000028658A1 (enExample)

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US7116162B2 (en) 2002-08-27 2006-10-03 Jam Technologies, Llc Reduced output topology for multi-reference switching amplifiers
KR100452767B1 (ko) * 2002-10-24 2004-10-14 월드탑텍(주) 정현파 발생 회로, 이를 이용한 무정전 전원 장치
EP1447907B1 (en) 2003-02-17 2007-11-07 D&M Holdings, Inc. Pulse width modulation amplifier
US7629157B2 (en) * 2003-08-11 2009-12-08 Codexis, Inc. Ketoreductase polypeptides and related polynucleotides
US7132886B2 (en) 2003-08-11 2006-11-07 Jam Technologies, Inc. Detecting load current in multi-reference amplifiers
US7230500B2 (en) 2004-06-28 2007-06-12 Jam Technologies, Inc. Synchronous delay-line amplification technique
US7116168B2 (en) * 2004-12-01 2006-10-03 Creative Technology Ltd Power multiplier system and method
CN101160716B (zh) * 2005-04-07 2012-10-03 Nxp股份有限公司 包括开关放大器和负载的装置
US7948308B2 (en) * 2007-01-30 2011-05-24 JM Electronics Ltd. LLC. Filter compensation for switching amplifiers
WO2008095145A1 (en) * 2007-01-31 2008-08-07 Jm Electronics Ltd. Llc Low rf interference switching amplifier and method
KR101122390B1 (ko) * 2007-02-01 2012-03-23 제이엠 일렉트로닉스 엘티디. 엘엘씨 스위칭 증폭기용 샘플링 주파수를 증가시키기 위한 방법 및 시스템
JP4710870B2 (ja) * 2007-05-10 2011-06-29 ヤマハ株式会社 デジタルアンプ装置およびスピーカ装置
US8330541B2 (en) * 2011-03-01 2012-12-11 Maxim Integrated Products, Inc. Multilevel class-D amplifier
US9413854B1 (en) * 2013-07-15 2016-08-09 Amazon Technologies, Inc. Network-accessible signal processing service
US11102583B1 (en) 2019-03-27 2021-08-24 Cirrus Logic, Inc. Current vectoring to electroacoustic output transducers having multiple voice coils
US11026035B1 (en) 2019-04-19 2021-06-01 Cirrus Logic, Inc. Transducer electrical characteristic and state sensing using multiple voice coils

Citations (2)

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JPH04241836A (ja) * 1991-01-16 1992-08-28 Toshiba Corp 傾斜磁場アンプ装置
US5663647A (en) * 1995-12-29 1997-09-02 General Electric Company Switching gradient amplifier with adjustable DC bus voltage

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US3900823A (en) * 1973-03-28 1975-08-19 Nathan O Sokal Amplifying and processing apparatus for modulated carrier signals
JPH029374Y2 (enExample) * 1979-01-31 1990-03-08
GB2064901B (en) * 1979-11-30 1984-11-07 Harris Corp Digital high power amplifier
US4404526A (en) 1981-02-02 1983-09-13 Kirn Larry J High fidelity audio encoder/amplifier
JPS6225504A (ja) * 1985-07-20 1987-02-03 リツエンツイア・パテント−フエルヴアルツングス−ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング 切換増幅器
JPS6260306A (ja) * 1985-09-10 1987-03-17 Toshiba Corp Ｐｗｍドライブ回路
EP0250718A1 (de) * 1986-06-30 1988-01-07 Siemens Aktiengesellschaft Stromversorgung für einen induktiven Verbraucher, insbesondere eine Gradientenspule, mit Steuer- und Regeleinrichtung
JPS63194597A (ja) * 1987-02-04 1988-08-11 Mitsubishi Electric Corp 直流モ−タ制御装置
US4748421A (en) * 1987-04-08 1988-05-31 Scs Telecom, Inc. Enhanced class SM power amplifier
US4773096A (en) 1987-07-20 1988-09-20 Kirn Larry J Digital switching power amplifier
JP2959810B2 (ja) * 1990-06-11 1999-10-06 三菱電機株式会社 パルス幅変調増幅器
JP3130919B2 (ja) * 1990-11-06 2001-01-31 三菱電機株式会社 パルス幅変調増幅器
US5309297A (en) 1991-10-16 1994-05-03 Rohm Co., Ltd. Digital cassette tape reproducing device including novel drive circuit
JPH05269102A (ja) * 1991-11-28 1993-10-19 Toshiba Corp 傾斜磁場アンプ装置
US5270657A (en) * 1992-03-23 1993-12-14 General Electric Company Split gradient amplifier for an MRI system
US5610553A (en) 1993-03-02 1997-03-11 Kirn; Larry Switching amplifier with impedance transformation output stage
US5382915A (en) * 1993-07-06 1995-01-17 Motorola, Inc. Pulsewidth-modulated amplifier having analog mode
DE4401609C1 (de) * 1994-01-20 1994-12-22 Siemens Ag Leistungsverstärker für die Speisung einer induktiven Last mit geschalteten Transistoren
US5398003A (en) 1994-03-30 1995-03-14 Apple Computer, Inc. Pulse width modulation speaker amplifier
US5613010A (en) 1994-03-30 1997-03-18 Apple Computer, Inc. Apparatus for reproducing sound with a reduced dynamic range
JP3313256B2 (ja) * 1995-01-09 2002-08-12 松下電器産業株式会社 Ｄ級電力増幅器
US5617058A (en) * 1995-11-13 1997-04-01 Apogee Technology, Inc. Digital signal processing for linearization of small input signals to a tri-state power switch
US5777512A (en) * 1996-06-20 1998-07-07 Tripath Technology, Inc. Method and apparatus for oversampled, noise-shaping, mixed-signal processing
JPH10145887A (ja) 1996-11-07 1998-05-29 Sony Corp スピーカ装置
IT1291783B1 (it) * 1997-02-21 1999-01-21 Claudio Lastrucci Un filtro di ricostruzione per l'eliminazione del residuo di commutazione in un sistema a commutazione o simile
US5886572A (en) 1997-07-25 1999-03-23 Motorola, Inc. Method and apparatus for reducing distortion in a power amplifier
US5909153A (en) 1998-02-05 1999-06-01 Tripath Technology, Inc. Method and apparatus for compensating for delays in modulator loops
US5949282A (en) 1998-02-25 1999-09-07 National Semiconductor Corporation Class D amplifier no low pass filter feedback with zero phase delay
DE19837439C2 (de) 1998-08-18 2000-07-13 Siemens Ag Verfahren und Vorrichtung zum Erzeugen von Ansteuersignalen für eine Leistungsendstufe und Leistungsendstufe
US6441685B1 (en) * 2000-03-17 2002-08-27 Jl Audio, Inc. Amplifier circuit and method for providing negative feedback thereto

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04241836A (ja) * 1991-01-16 1992-08-28 Toshiba Corp 傾斜磁場アンプ装置
US5663647A (en) * 1995-12-29 1997-09-02 General Electric Company Switching gradient amplifier with adjustable DC bus voltage

Also Published As

Publication number Publication date
AU766843B2 (en) 2003-10-23
CN1199349C (zh) 2005-04-27
DE69935731D1 (de) 2007-05-16
US6535058B1 (en) 2003-03-18
CN1326613A (zh) 2001-12-12
WO2000028658A9 (en) 2001-01-04
AU3099300A (en) 2000-05-29
DE69935731T2 (de) 2007-12-27
EP1131886B1 (en) 2007-04-04
CA2349181A1 (en) 2000-05-18
JP2002530000A (ja) 2002-09-10
MXPA01004786A (es) 2002-09-18
EP1131886A1 (en) 2001-09-12
BR9915269A (pt) 2001-08-07
JP4707233B2 (ja) 2011-06-22
WO2000028658A1 (en) 2000-05-18
KR20010089447A (ko) 2001-10-06
ATE358907T1 (de) 2007-04-15
EP1131886A4 (en) 2003-12-03

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