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1. (EP0979551) METHOD AND APPARATUS FOR EFFICIENT SIGNAL POWER AMPLIFICATION

Office : European Patent Office
Application Number: 98920127 Application Date: 30.04.1998
Publication Number: 0979551 Publication Date: 16.02.2000
Publication Kind : A1
Designated States: AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LI, LU, MC, NL, PT, SE
Prior PCT appl.: Application Number:US1998008893 ; Publication Number: Click to see the data
IPC:
H 03F
H03F 3/68
H03F 1/02
H03F 3/60
H04B 1/04
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
3
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
68
Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
3
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
68
Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
1
Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
02
Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
3
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
60
Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
02
Transmitters
04
Circuits
CPC:
H03F 3/602
H03F 1/0294
Applicants: MOTOROLA INC
Inventors: STENGEL ROBERT E
OLSON SCOTT A
Priority Data: 08850541 02.05.1997 US
9808893 30.04.1998 US
Title: (DE) VERFAHREN UND VORRICHTUNG ZUR SIGNALLEISTUNGSVERSTÄRKUNG MIT HOHEM WIRKUNGSGRAD
(EN) METHOD AND APPARATUS FOR EFFICIENT SIGNAL POWER AMPLIFICATION
(FR) PROCEDE ET APPAREIL D'AMPLIFICATION EFFICACE DE LA PUISSANCE DE SIGNAUX
Abstract:
(EN) An apparatus (100) uses power recovery from a combining circuit (125) to improve efficiency. A power combiner (125) generates multiple output signals (127, 133) from a combination of input signals (113, 114). One of the output signals from the power combiner is coupled to a power recovery circuit (135), and energy is recovered and preferably stored for later use.
(FR) L'invention concerne un appareil (100) utilisant la récupération de puissance d'un circuit combinateur (125) pour améliorer l'efficacité. Un combinateur (125) de puissance fournit plusieurs signaux de sortie (127, 133) à partir d'une conbinaison de signaux d'entrée (113, 114). L'un des signaux de sortie fourni par le combinateur de puissance est couplé à un circuit (135) de récupération de puissance, et de l'énergie est récupérée puis de préférence stockée pour utilisation ultérieure.
Also published as:
KR1020010012138JP2001527722 CN1254453AU1998072769WO/1998/051007