SE9903454L - Circuit device for power amplification - Google Patents
Circuit device for power amplificationInfo
- Publication number
- SE9903454L SE9903454L SE9903454A SE9903454A SE9903454L SE 9903454 L SE9903454 L SE 9903454L SE 9903454 A SE9903454 A SE 9903454A SE 9903454 A SE9903454 A SE 9903454A SE 9903454 L SE9903454 L SE 9903454L
- Authority
- SE
- Sweden
- Prior art keywords
- power amplification
- circuit
- amplifier
- circuit device
- amplification circuit
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The amplification circuit has at least two parallel signal paths connected between the circuit input (IN) and the circuit output (OUT), each containing an amplifier (V1,V2,V3) operated in a saturation mode. The amplifiers provide respective power output values (Pout) and are individually activated and de-activated via control signals (s1,s2,s3). Preferably a frequency selective load (L) is used to terminate the amplifier. An Independent claim for an application of the power amplification circuit in a cordless communication system is also included.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998143784 DE19843784A1 (en) | 1998-09-24 | 1998-09-24 | Power amplification circuit for communications signals, has parallel signal paths containing saturation amplifiers with different power output values operated selectively dependent on required power output |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9903454D0 SE9903454D0 (en) | 1999-09-23 |
SE9903454L true SE9903454L (en) | 2000-03-25 |
Family
ID=7882072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9903454A SE9903454L (en) | 1998-09-24 | 1999-09-23 | Circuit device for power amplification |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE19843784A1 (en) |
FI (1) | FI19992035A (en) |
SE (1) | SE9903454L (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100758854B1 (en) * | 2005-03-29 | 2007-09-19 | 인티그런트 테크놀로지즈(주) | Low noise amplifier and differential amplifier with variable gain mode |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6902320U (en) * | 1969-01-21 | 1969-05-14 | Westinghouse Bremsen Apparate | SINGLE-ACTING HYDRAULIC OR PNEUMATIC WORK CYLINDER |
JPS5387656A (en) * | 1977-01-12 | 1978-08-02 | Seiko Epson Corp | Amplfier |
JPS6419037A (en) * | 1987-07-14 | 1989-01-23 | Mitsui Toatsu Chemicals | Oxidation of 2-chloropropionaldehyde |
MX9303557A (en) * | 1992-08-06 | 1994-03-31 | Beta Pharm Co | METHOD FOR ADMINISTRATION OF AN ANTI-ANDROGEN, IN PARTICULAR, SPIRONOLACTONE, THROUGH THE SKIN. |
-
1998
- 1998-09-24 DE DE1998143784 patent/DE19843784A1/en not_active Withdrawn
-
1999
- 1999-09-23 FI FI992035A patent/FI19992035A/en unknown
- 1999-09-23 SE SE9903454A patent/SE9903454L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE19843784A1 (en) | 2000-04-20 |
SE9903454D0 (en) | 1999-09-23 |
FI19992035A (en) | 2000-03-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
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