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1. (CN102265505) Power amplication device

Office : China
Application Number: 200980152649.2 Application Date: 16.12.2009
Publication Number: 102265505 Publication Date: 30.11.2011
Grant Number: 102265505 Grant Date: 23.04.2014
Publication Kind : B
Prior PCT appl.: Application Number:PCTJP2009070949 ; Publication Number:2010073941 Click to see the data
IPC:
H03F 1/02
H03F 1/06
H03F 1/32
H03F 3/24
H04B 1/04
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
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
04
in discharge-tube amplifiers
06
to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
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
32
Modifications of amplifiers to reduce non-linear distortion
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
3
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
20
Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
24
of transmitter output stages
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 1/0222
H03F 1/02
H03F 1/0244
H03F 3/24
H03F 2200/102
H03F 2200/511
H04B 2001/045
Applicants: 日本电气株式会社
Inventors: 国弘和明
山之内慎吾
椎熊一实
Agents: 中原信达知识产权代理有限责任公司 11219
中原信达知识产权代理有限责任公司 11219
Priority Data: 2008-330709 25.12.2008 JP
Title: (EN) Power amplication device
(ZH) 功率放大装置
Abstract: front page image
(EN) A high-frequency amplifier amplifies a modulation signal or a phase modulation component of the modulation signal when outputting the signal. A linear amplifier adds an output voltage to a power source voltage supplied to the high-frequency amplifier and amplifies a difference between the output voltage and the amplitude modulation component of the modulation signal for output. A control signal generation unit detects the direction of flow of the output current in the linear amplification unit and generates a pulse modulation signal based on the current flow direction. A switching amplification unit uses the pulse modulation signal as a control signal for controlling ON/OFF of the DC current so as to amplify by switch amplification the output signal of the linear amplification unit and adds the signal to a predetermined DC voltage to be supplied as a power source voltage to the high-frequency amplifier. A DC current and a predetermined DC voltage are supplied to the switching amplification unit.
(ZH)

高频放大器在输出调制信号时放大调制信号或其相位调制分量。线性放大器使输出电压与提供给高频放大器的电源电压相加,放大输出电压与调制信号的振幅调制分量之间的差以输出。控制信号生成部检测线性放大部的输出电流流动的方向并根据电流的方向来生成脉冲调制信号。切换放大部使用脉冲调制信号作为控制信号,来控制DC电流的接通和断开,以便通过切换放大部对线性放大部的输出信号执行放大,使结果信号与预定DC电压相加以作为电源电压要提供给高频放大器。DC电流和预定DC电压被提供给切换放大部。


Also published as:
EP2372904JPWO2010073941US20110241775WO/2010/073941