GB0400614D0 - Power amplifier arrangement - Google Patents
Power amplifier arrangementInfo
- Publication number
- GB0400614D0 GB0400614D0 GB0400614A GB0400614A GB0400614D0 GB 0400614 D0 GB0400614 D0 GB 0400614D0 GB 0400614 A GB0400614 A GB 0400614A GB 0400614 A GB0400614 A GB 0400614A GB 0400614 D0 GB0400614 D0 GB 0400614D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- power amplifier
- amplifier arrangement
- arrangement
- power
- amplifier
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
- H03F1/307—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in push-pull 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
- H03F1/0261—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
-
- 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
- H03F1/3217—Modifications of amplifiers to reduce non-linear distortion in single ended push-pull amplifiers
-
- 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
- H03F3/3066—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the collectors of complementary power transistors being connected to the output
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/30—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor
- H03F2203/30015—An input signal dependent control signal controls the bias of an output stage in the SEPP
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/30—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor
- H03F2203/30027—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor the SEPP bias voltage being controlled by a control signal from a feedback circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/30—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor
- H03F2203/30078—A resistor being added in the pull stage of the SEPP amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/30—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor
- H03F2203/30111—A resistor being added in the push stage of the SEPP amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0400614A GB2410142A (en) | 2004-01-13 | 2004-01-13 | An audio power amplifier with automatic class selection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0400614A GB2410142A (en) | 2004-01-13 | 2004-01-13 | An audio power amplifier with automatic class selection |
Publications (2)
Publication Number | Publication Date |
---|---|
GB0400614D0 true GB0400614D0 (en) | 2004-02-11 |
GB2410142A GB2410142A (en) | 2005-07-20 |
Family
ID=31503776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0400614A Withdrawn GB2410142A (en) | 2004-01-13 | 2004-01-13 | An audio power amplifier with automatic class selection |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2410142A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7679450B2 (en) | 2008-02-14 | 2010-03-16 | Infineon Technologies Ag | Amplifier auto biasing |
GB2462445A (en) * | 2008-08-06 | 2010-02-10 | Kbo Dynamics Ltd | Microprocessor-controlled bias adjustment in a thermionic valve audio amplifier |
GB2547707B (en) | 2016-02-26 | 2020-04-08 | Entotem Ltd | Controlling a power amplification stage of an audio signal amplifier |
GR1008934B (en) * | 2016-04-25 | 2017-01-24 | Κωνσταντινος Γεωργιου Παπαχρηστου | Electronic arrangement for the automatic regulation of current polarisation in transistors of single-supply audio amplifiers |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5422859B2 (en) * | 1972-12-30 | 1979-08-09 | ||
JPS5832801B2 (en) * | 1976-02-10 | 1983-07-15 | ヤマハ株式会社 | power amplifier |
JPS5797209A (en) * | 1980-12-08 | 1982-06-16 | Marantz Japan Inc | Power amplifying circuit |
JPS58114608A (en) * | 1981-12-28 | 1983-07-08 | Nec Home Electronics Ltd | Variable bias circuit |
JPH0865061A (en) * | 1994-08-24 | 1996-03-08 | Nippon Columbia Co Ltd | Idling current control circuit |
JPH1127059A (en) * | 1997-06-27 | 1999-01-29 | Kenwood Corp | Idling control circuit for a-class amplifier |
JP3460040B2 (en) * | 1997-06-27 | 2003-10-27 | 株式会社ケンウッド | Amplifier circuit |
JPH1127056A (en) * | 1997-06-27 | 1999-01-29 | Kenwood Corp | Idling control circuit for a-class amplifier |
JP3508813B2 (en) * | 1997-06-27 | 2004-03-22 | 株式会社ケンウッド | Idling adjustment circuit of class A amplifier |
JP3460041B2 (en) * | 1997-08-29 | 2003-10-27 | 株式会社ケンウッド | Amplifier circuit |
GB2374220B (en) * | 2001-01-17 | 2004-08-04 | Jeffrey Peter Macaulay | Simple efficient class a output stage |
-
2004
- 2004-01-13 GB GB0400614A patent/GB2410142A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB2410142A (en) | 2005-07-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |