GB2425418B - Amplifier circuit and rf transmitter incorporating the circuit - Google Patents
Amplifier circuit and rf transmitter incorporating the circuitInfo
- Publication number
- GB2425418B GB2425418B GB0508049A GB0508049A GB2425418B GB 2425418 B GB2425418 B GB 2425418B GB 0508049 A GB0508049 A GB 0508049A GB 0508049 A GB0508049 A GB 0508049A GB 2425418 B GB2425418 B GB 2425418B
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- transmitter incorporating
- amplifier
- amplifier circuit
- incorporating
- 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
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
- H03F1/0216—Continuous control
- H03F1/0233—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply
- H03F1/0238—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply using supply converters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/504—Indexing scheme relating to amplifiers the supply voltage or current being continuously controlled by a controlling signal, e.g. the controlling signal of a transistor implemented as variable resistor in a supply path for, an IC-block showed amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0508049A GB2425418B (en) | 2005-04-22 | 2005-04-22 | Amplifier circuit and rf transmitter incorporating the circuit |
PCT/US2006/014395 WO2006115879A2 (en) | 2005-04-22 | 2006-04-18 | Amplifier circuit and rf transmitter incorporating the circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0508049A GB2425418B (en) | 2005-04-22 | 2005-04-22 | Amplifier circuit and rf transmitter incorporating the circuit |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0508049D0 GB0508049D0 (en) | 2005-05-25 |
GB2425418A GB2425418A (en) | 2006-10-25 |
GB2425418B true GB2425418B (en) | 2007-09-19 |
Family
ID=34631033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0508049A Expired - Fee Related GB2425418B (en) | 2005-04-22 | 2005-04-22 | Amplifier circuit and rf transmitter incorporating the circuit |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2425418B (en) |
WO (1) | WO2006115879A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015007696B3 (en) * | 2015-06-18 | 2016-12-15 | Iie Gmbh & Co. Kg | Voltage source for modulated DC voltages |
KR102696312B1 (en) * | 2017-01-06 | 2024-08-20 | 삼성전자 주식회사 | Power amplifier device and terminal or base station including the power amplifier device |
CN112865730B (en) * | 2019-11-27 | 2024-08-02 | 瑞昱半导体股份有限公司 | Class-D amplifier circuit and audio amplification method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3996524A (en) * | 1975-11-05 | 1976-12-07 | Rca Corporation | Linear amplifier utilizing adaptive biasing |
US20020060608A1 (en) * | 1999-03-30 | 2002-05-23 | Chabas Jean A. | Electronic apparatus comprising a power amplifier |
US6566944B1 (en) * | 2002-02-21 | 2003-05-20 | Ericsson Inc. | Current modulator with dynamic amplifier impedance compensation |
US20040113695A1 (en) * | 2000-11-24 | 2004-06-17 | Harris Mark V. | Amplifier circuit |
GB2398648A (en) * | 2003-02-19 | 2004-08-25 | Nujira Ltd | Amplifier power supply whose voltage tracks a signal envelope |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6081161A (en) * | 1998-05-18 | 2000-06-27 | Omnipoint Corporation | Amplifier with dynamatically adaptable supply voltage |
-
2005
- 2005-04-22 GB GB0508049A patent/GB2425418B/en not_active Expired - Fee Related
-
2006
- 2006-04-18 WO PCT/US2006/014395 patent/WO2006115879A2/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3996524A (en) * | 1975-11-05 | 1976-12-07 | Rca Corporation | Linear amplifier utilizing adaptive biasing |
US20020060608A1 (en) * | 1999-03-30 | 2002-05-23 | Chabas Jean A. | Electronic apparatus comprising a power amplifier |
US20040113695A1 (en) * | 2000-11-24 | 2004-06-17 | Harris Mark V. | Amplifier circuit |
US6566944B1 (en) * | 2002-02-21 | 2003-05-20 | Ericsson Inc. | Current modulator with dynamic amplifier impedance compensation |
GB2398648A (en) * | 2003-02-19 | 2004-08-25 | Nujira Ltd | Amplifier power supply whose voltage tracks a signal envelope |
Also Published As
Publication number | Publication date |
---|---|
WO2006115879A2 (en) | 2006-11-02 |
GB2425418A (en) | 2006-10-25 |
GB0508049D0 (en) | 2005-05-25 |
WO2006115879A3 (en) | 2006-12-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20120419 AND 20120425 |
|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20220422 |