AU4777700A - Digital amplifier - Google Patents

Digital amplifier

Info

Publication number
AU4777700A
AU4777700A AU47777/00A AU4777700A AU4777700A AU 4777700 A AU4777700 A AU 4777700A AU 47777/00 A AU47777/00 A AU 47777/00A AU 4777700 A AU4777700 A AU 4777700A AU 4777700 A AU4777700 A AU 4777700A
Authority
AU
Australia
Prior art keywords
digital amplifier
amplifier
digital
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.)
Abandoned
Application number
AU47777/00A
Inventor
Hiroyuki Kimura
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.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of AU4777700A publication Critical patent/AU4777700A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated 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
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/331—Sigma delta modulation being used in an amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
AU47777/00A 1999-05-18 2000-05-18 Digital amplifier Abandoned AU4777700A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP13781099 1999-05-18
JP11/137810 1999-05-18
PCT/JP2000/003187 WO2000070752A1 (en) 1999-05-18 2000-05-18 Digital amplifier

Publications (1)

Publication Number Publication Date
AU4777700A true AU4777700A (en) 2000-12-05

Family

ID=15207393

Family Applications (1)

Application Number Title Priority Date Filing Date
AU47777/00A Abandoned AU4777700A (en) 1999-05-18 2000-05-18 Digital amplifier

Country Status (2)

Country Link
AU (1) AU4777700A (en)
WO (1) WO2000070752A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4078543B2 (en) * 2002-12-20 2008-04-23 ソニー株式会社 Audio amplifier
CN100344166C (en) * 2003-04-16 2007-10-17 华为技术有限公司 Modulation demodulation method and device
JP4566566B2 (en) * 2004-01-21 2010-10-20 パナソニック株式会社 Power amplifier
US7116168B2 (en) * 2004-12-01 2006-10-03 Creative Technology Ltd Power multiplier system and method
JP4350075B2 (en) 2005-08-29 2009-10-21 富士通マイクロエレクトロニクス株式会社 DC-DC converter control circuit and control method thereof
TWI419462B (en) * 2006-06-16 2013-12-11 Mstar Semiconductor Inc Class d amplifier
JP4955580B2 (en) * 2008-01-18 2012-06-20 旭化成エレクトロニクス株式会社 Switching amplifier
JP6609904B2 (en) * 2014-10-15 2019-11-27 オンキヨー株式会社 Digital amplifier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2880372B2 (en) * 1993-05-18 1999-04-05 シャープ株式会社 Speaker drive
JP3369425B2 (en) * 1997-02-20 2003-01-20 シャープ株式会社 Driving method of digital switching amplifier
JP3453279B2 (en) * 1997-04-02 2003-10-06 シャープ株式会社 Method and apparatus for controlling volume of 1-bit digital signal

Also Published As

Publication number Publication date
WO2000070752A1 (en) 2000-11-23

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase