HK1099417A1 - A power multiplier system and method - Google Patents

A power multiplier system and method

Info

Publication number
HK1099417A1
HK1099417A1 HK07105405.1A HK07105405A HK1099417A1 HK 1099417 A1 HK1099417 A1 HK 1099417A1 HK 07105405 A HK07105405 A HK 07105405A HK 1099417 A1 HK1099417 A1 HK 1099417A1
Authority
HK
Hong Kong
Prior art keywords
stage
power multiplier
connectable
output terminal
amplifier
Prior art date
Application number
HK07105405.1A
Other languages
English (en)
Inventor
Ting Boon Gee
Jun Makino
Original Assignee
Creative Tech 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 Tech Ltd filed Critical Creative Tech Ltd
Publication of HK1099417A1 publication Critical patent/HK1099417A1/xx

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)
HK07105405.1A 2004-12-01 2007-05-22 A power multiplier system and method HK1099417A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/001,723 US7116168B2 (en) 2004-12-01 2004-12-01 Power multiplier system and method

Publications (1)

Publication Number Publication Date
HK1099417A1 true HK1099417A1 (en) 2007-08-10

Family

ID=36565333

Family Applications (1)

Application Number Title Priority Date Filing Date
HK07105405.1A HK1099417A1 (en) 2004-12-01 2007-05-22 A power multiplier system and method

Country Status (9)

Country Link
US (1) US7116168B2 (xx)
EP (1) EP1825592B1 (xx)
JP (1) JP5042031B2 (xx)
KR (1) KR101124802B1 (xx)
CN (1) CN100547912C (xx)
AT (1) ATE509426T1 (xx)
AU (1) AU2005310334B2 (xx)
HK (1) HK1099417A1 (xx)
WO (1) WO2006059956A1 (xx)

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
GB2441218B (en) * 2006-08-23 2011-08-10 Samsung Electronics Co Ltd Method,apparatus and system for reducing dc coupling capacitance at switching amplifier
KR100770747B1 (ko) * 2006-08-23 2007-10-29 삼성전자주식회사 디지털 앰프 및 음성 재생 방법
WO2008054797A2 (en) * 2006-10-30 2008-05-08 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

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI75701C (fi) * 1983-04-22 1988-07-11 Instrumentarium Oy Kontrollerad stroemkaella.
US5077539A (en) * 1990-12-26 1991-12-31 Apogee Technology, Inc. Switching amplifier
NL9100115A (nl) 1991-01-24 1992-08-17 Philips Nv Schakelende brugversterker.
US5506493A (en) 1992-11-10 1996-04-09 Motorola, Inc. Switching regulator and amplifier system
AU5667194A (en) 1992-11-10 1994-06-08 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
DE19511832C2 (de) * 1995-03-30 1997-01-30 Siemens Ag Verfahren und Vorrichtung zur Gradientenstromversorgung für ein Kernspintomographiegerät
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
DE19709767C1 (de) * 1997-03-10 1998-04-23 Siemens Ag Verfahren zum Ansteuern mehrerer Schaltendstufen, Ansteuereinrichtung und Leistungsverstärker
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
CA2349181A1 (en) * 1998-11-12 2000-05-18 Larry Kirn Multi-reference, high-accuracy switching amplifier
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

Also Published As

Publication number Publication date
KR20070084057A (ko) 2007-08-24
ATE509426T1 (de) 2011-05-15
JP2008522544A (ja) 2008-06-26
JP5042031B2 (ja) 2012-10-03
WO2006059956A1 (en) 2006-06-08
CN100547912C (zh) 2009-10-07
KR101124802B1 (ko) 2012-03-23
US20060114057A1 (en) 2006-06-01
EP1825592A1 (en) 2007-08-29
AU2005310334B2 (en) 2010-08-12
US7116168B2 (en) 2006-10-03
AU2005310334A1 (en) 2006-06-08
EP1825592B1 (en) 2011-05-11
CN1881786A (zh) 2006-12-20
EP1825592A4 (en) 2009-06-03

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20181112