AU2005310334B2 - A power multiplier apparatus and method - Google Patents

A power multiplier apparatus and method Download PDF

Info

Publication number
AU2005310334B2
AU2005310334B2 AU2005310334A AU2005310334A AU2005310334B2 AU 2005310334 B2 AU2005310334 B2 AU 2005310334B2 AU 2005310334 A AU2005310334 A AU 2005310334A AU 2005310334 A AU2005310334 A AU 2005310334A AU 2005310334 B2 AU2005310334 B2 AU 2005310334B2
Authority
AU
Australia
Prior art keywords
stage
amplitude
amplifier
multiplied
input
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.)
Ceased
Application number
AU2005310334A
Other languages
English (en)
Other versions
AU2005310334A1 (en
Inventor
Jun Makino
Boon Ghee Ting
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.)
Creative Technology Ltd
Original Assignee
Creative Technology Ltd
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 Creative Technology Ltd filed Critical Creative Technology Ltd
Publication of AU2005310334A1 publication Critical patent/AU2005310334A1/en
Application granted granted Critical
Publication of AU2005310334B2 publication Critical patent/AU2005310334B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • H03F3/20—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
    • 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
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
    • 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
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
  • Control Of Charge By Means Of Generators (AREA)
AU2005310334A 2004-12-01 2005-11-28 A power multiplier apparatus and method Ceased AU2005310334B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/001,723 2004-12-01
US11/001,723 US7116168B2 (en) 2004-12-01 2004-12-01 Power multiplier system and method
PCT/SG2005/000406 WO2006059956A1 (en) 2004-12-01 2005-11-28 A power multiplier apparatus and method

Publications (2)

Publication Number Publication Date
AU2005310334A1 AU2005310334A1 (en) 2006-06-08
AU2005310334B2 true AU2005310334B2 (en) 2010-08-12

Family

ID=36565333

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2005310334A Ceased AU2005310334B2 (en) 2004-12-01 2005-11-28 A power multiplier apparatus and method

Country Status (8)

Country Link
US (1) US7116168B2 (enExample)
EP (1) EP1825592B1 (enExample)
JP (1) JP5042031B2 (enExample)
KR (1) KR101124802B1 (enExample)
CN (1) CN100547912C (enExample)
AT (1) ATE509426T1 (enExample)
AU (1) AU2005310334B2 (enExample)
WO (1) WO2006059956A1 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7746935B2 (en) * 2005-05-13 2010-06-29 Xienetics, Inc. Digital amplifier system for driving a capacitive load
KR100770747B1 (ko) * 2006-08-23 2007-10-29 삼성전자주식회사 디지털 앰프 및 음성 재생 방법
GB2441218B (en) * 2006-08-23 2011-08-10 Samsung Electronics Co Ltd Method,apparatus and system for reducing dc coupling capacitance at switching amplifier
US7573330B2 (en) * 2006-10-30 2009-08-11 Nortel Networks Limited High efficiency digital power amplifier
KR20080080874A (ko) 2007-03-02 2008-09-05 삼성전자주식회사 가상 접지를 이용한 오디오 파워 앰프 및 그 신호 처리방법
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
TWI350708B (en) * 2007-06-26 2011-10-11 Wolo Mfg Corp Computer controlled amplifier and speaker system with power conservation feature
JP2009240151A (ja) * 2008-03-07 2009-10-15 Seiko Epson Corp 駆動信号供給制御用半導体装置
CN101834570B (zh) * 2010-05-19 2012-03-14 成都九洲迪飞科技有限责任公司 发射机信号放大电路

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668904A (en) * 1983-04-22 1987-05-26 Instrumentarium Corp. Controlled source of current
US5077539A (en) * 1990-12-26 1991-12-31 Apogee Technology, Inc. Switching amplifier
US5157347A (en) * 1991-01-24 1992-10-20 U.S. Philips Corporation Switching bridge amplifier
US5617030A (en) * 1995-03-30 1997-04-01 Siemens Aktiengesellschaft Method and apparatus for gradient power supply for a nuclear magnetic resonance tomography apparatus
US5991179A (en) * 1997-03-10 1999-11-23 Siemens Aktiengesellschaft Power amplifier with multiple, switched output stages, and method and driver for driving the output stages using different pattern signals groups
US6535058B1 (en) * 1998-11-12 2003-03-18 Jam Technologies, Llc Multi-reference, high-accuracy switching amplifier

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5667194A (en) 1992-11-10 1994-06-08 Motorola, Inc. Switching regulator and amplifier system
US5506493A (en) 1992-11-10 1996-04-09 Motorola, Inc. Switching regulator and amplifier system
US5410592A (en) 1993-06-04 1995-04-25 Harris Corporation Class `D` audio speaker amplifier circuit with state variable feedback control
US5329245A (en) * 1993-06-28 1994-07-12 The United States Of America As Represented By The Secretary Of The Navy Hybrid high power amplifier
JP3522969B2 (ja) * 1995-10-25 2004-04-26 パイオニア株式会社 Ｂｔｌ増幅器装置
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
US5838193A (en) * 1996-11-26 1998-11-17 Motorola, Inc. Time-delay compensating wideband class-s modulator and method therefor
US5963086A (en) 1997-08-08 1999-10-05 Velodyne Acoustics, Inc. Class D amplifier with switching control
DK0998048T3 (da) 1998-10-27 2002-11-04 Bosch Gmbh Robert Fremgangsmåde og apparat til styring af energiforbruget i et mobilt radioapparatur
AU4777700A (en) * 1999-05-18 2000-12-05 Lucent Technologies Inc. Digital amplifier
YU49097B (sh) 1999-11-23 2003-12-31 dr. Milan Prokin Polumostni pojačavač sa podizačem napona
JP2002374128A (ja) * 2001-06-14 2002-12-26 Hitachi Ltd 電力増幅器
JP3907982B2 (ja) * 2001-07-30 2007-04-18 株式会社ディーアンドエムホールディングス 増幅器
JP2003092515A (ja) * 2001-09-17 2003-03-28 Denon Ltd 増幅器
JP2003110428A (ja) * 2001-09-27 2003-04-11 Denon Ltd 増幅器
JP2003348826A (ja) * 2002-05-24 2003-12-05 Fuji Electric Co Ltd 電源制御装置
US6765436B1 (en) * 2002-09-04 2004-07-20 Cirrus Logic, Inc. Power supply based audio compression for digital audio amplifier
US6741123B1 (en) * 2002-12-26 2004-05-25 Cirrus Logic, Inc. Delta-sigma amplifiers with output stage supply voltage variation compensation and methods and digital amplifier systems using the same
TW200503412A (en) 2003-05-07 2005-01-16 Rohm Co Ltd Audio amplifier circuit and audio IC having the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668904A (en) * 1983-04-22 1987-05-26 Instrumentarium Corp. Controlled source of current
US5077539A (en) * 1990-12-26 1991-12-31 Apogee Technology, Inc. Switching amplifier
US5157347A (en) * 1991-01-24 1992-10-20 U.S. Philips Corporation Switching bridge amplifier
US5617030A (en) * 1995-03-30 1997-04-01 Siemens Aktiengesellschaft Method and apparatus for gradient power supply for a nuclear magnetic resonance tomography apparatus
US5991179A (en) * 1997-03-10 1999-11-23 Siemens Aktiengesellschaft Power amplifier with multiple, switched output stages, and method and driver for driving the output stages using different pattern signals groups
US6535058B1 (en) * 1998-11-12 2003-03-18 Jam Technologies, Llc Multi-reference, high-accuracy switching amplifier

Also Published As

Publication number Publication date
CN100547912C (zh) 2009-10-07
JP2008522544A (ja) 2008-06-26
JP5042031B2 (ja) 2012-10-03
ATE509426T1 (de) 2011-05-15
EP1825592A1 (en) 2007-08-29
EP1825592A4 (en) 2009-06-03
CN1881786A (zh) 2006-12-20
WO2006059956A1 (en) 2006-06-08
AU2005310334A1 (en) 2006-06-08
KR101124802B1 (ko) 2012-03-23
HK1099417A1 (zh) 2007-08-10
US20060114057A1 (en) 2006-06-01
EP1825592B1 (en) 2011-05-11
US7116168B2 (en) 2006-10-03
KR20070084057A (ko) 2007-08-24

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Legal Events

Date Code Title Description
FGA Letters patent sealed or granted (standard patent)
MK14 Patent ceased section 143(a) (annual fees not paid) or expired