GB2405275B - Amplifiers - Google Patents

Amplifiers

Info

Publication number
GB2405275B
GB2405275B GB0417832A GB0417832A GB2405275B GB 2405275 B GB2405275 B GB 2405275B GB 0417832 A GB0417832 A GB 0417832A GB 0417832 A GB0417832 A GB 0417832A GB 2405275 B GB2405275 B GB 2405275B
Authority
GB
United Kingdom
Prior art keywords
amplifiers
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
GB0417832A
Other versions
GB2405275A (en
GB0417832D0 (en
Inventor
William Miller
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.)
Linn Products Ltd
Original Assignee
Linn Products 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 Linn Products Ltd filed Critical Linn Products Ltd
Publication of GB0417832D0 publication Critical patent/GB0417832D0/en
Publication of GB2405275A publication Critical patent/GB2405275A/en
Application granted granted Critical
Publication of GB2405275B publication Critical patent/GB2405275B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several 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
    • 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
    • H03F1/0261—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 polarisation voltage or current, e.g. gliding Class A
    • H03F1/0266—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 polarisation voltage or current, e.g. gliding Class A by using a signal derived from the input signal
    • 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
    • H03F1/0261—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 polarisation voltage or current, e.g. gliding Class A
    • H03F1/0272—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 polarisation voltage or current, e.g. gliding Class A by using a signal derived from the output signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3069—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
GB0417832A 2003-08-22 2004-08-11 Amplifiers Expired - Fee Related GB2405275B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0319706.8A GB0319706D0 (en) 2003-08-22 2003-08-22 Amplifiers

Publications (3)

Publication Number Publication Date
GB0417832D0 GB0417832D0 (en) 2004-09-15
GB2405275A GB2405275A (en) 2005-02-23
GB2405275B true GB2405275B (en) 2006-05-10

Family

ID=28460097

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0319706.8A Ceased GB0319706D0 (en) 2003-08-22 2003-08-22 Amplifiers
GB0417832A Expired - Fee Related GB2405275B (en) 2003-08-22 2004-08-11 Amplifiers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0319706.8A Ceased GB0319706D0 (en) 2003-08-22 2003-08-22 Amplifiers

Country Status (1)

Country Link
GB (2) GB0319706D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10270393B1 (en) * 2018-03-22 2019-04-23 Linear Technology Holding Llc Transconductance amplifier with nonlinear transconductance and low quiescent current

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56103508A (en) * 1980-01-23 1981-08-18 Hitachi Ltd Electric power amplifier
JPH0522048A (en) * 1991-07-12 1993-01-29 N F Kairo Sekkei Block:Kk Complementary amplifier circuit
JP2004260395A (en) * 2003-02-25 2004-09-16 Matsushita Electric Works Ltd Circuit for power line communication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56103508A (en) * 1980-01-23 1981-08-18 Hitachi Ltd Electric power amplifier
JPH0522048A (en) * 1991-07-12 1993-01-29 N F Kairo Sekkei Block:Kk Complementary amplifier circuit
JP2004260395A (en) * 2003-02-25 2004-09-16 Matsushita Electric Works Ltd Circuit for power line communication

Also Published As

Publication number Publication date
GB0319706D0 (en) 2003-09-24
GB2405275A (en) 2005-02-23
GB0417832D0 (en) 2004-09-15

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Legal Events

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

Effective date: 20160811