GB2357915B - A scheme for correcting distortion in an all-digital power amplifier - Google Patents

A scheme for correcting distortion in an all-digital power amplifier

Info

Publication number
GB2357915B
GB2357915B GB9930860A GB9930860A GB2357915B GB 2357915 B GB2357915 B GB 2357915B GB 9930860 A GB9930860 A GB 9930860A GB 9930860 A GB9930860 A GB 9930860A GB 2357915 B GB2357915 B GB 2357915B
Authority
GB
United Kingdom
Prior art keywords
scheme
power amplifier
digital power
correcting distortion
correcting
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.)
Expired - Fee Related
Application number
GB9930860A
Other versions
GB9930860D0 (en
GB2357915A (en
Inventor
John Francis Hope
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9930860A priority Critical patent/GB2357915B/en
Publication of GB9930860D0 publication Critical patent/GB9930860D0/en
Publication of GB2357915A publication Critical patent/GB2357915A/en
Application granted granted Critical
Publication of GB2357915B publication Critical patent/GB2357915B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3264—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits in audio amplifiers
    • 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)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
GB9930860A 1999-12-30 1999-12-30 A scheme for correcting distortion in an all-digital power amplifier Expired - Fee Related GB2357915B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9930860A GB2357915B (en) 1999-12-30 1999-12-30 A scheme for correcting distortion in an all-digital power amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9930860A GB2357915B (en) 1999-12-30 1999-12-30 A scheme for correcting distortion in an all-digital power amplifier

Publications (3)

Publication Number Publication Date
GB9930860D0 GB9930860D0 (en) 2000-02-16
GB2357915A GB2357915A (en) 2001-07-04
GB2357915B true GB2357915B (en) 2001-12-05

Family

ID=10867184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9930860A Expired - Fee Related GB2357915B (en) 1999-12-30 1999-12-30 A scheme for correcting distortion in an all-digital power amplifier

Country Status (1)

Country Link
GB (1) GB2357915B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6593806B1 (en) * 2001-08-10 2003-07-15 Cirrus Logic, Inc. Circuits and methods for compensating switched mode amplifiers
US6795004B2 (en) * 2001-09-28 2004-09-21 Sony Corporation Delta-sigma modulation apparatus and signal amplification apparatus
CN103069714B (en) 2010-08-13 2016-05-04 皇家飞利浦电子股份有限公司 The power supply unit of switch mode and method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
GB9930860D0 (en) 2000-02-16
GB2357915A (en) 2001-07-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20041230