介绍了一种新型的压力先导控制伺服阀，该阀的功率放大级采用双阀芯结构代替传统单阀芯结构。
A new servovalve using a pressure control pilot state was introduced, which USES two spools instead of single spool in power magnifying stage.
滑阀是由阀芯和阀套两部分组成，通常用作电液伺服阀的功率放大级，其精度要求高，加工难度大。
Spool valve is composed of valve spool and valve sleeve, and as the power stage of servo valve, it has a high degree of accuracy and is difficult for machining.
一个离合器的作用是给最后一级传动机构，即作为主功率放大器的绞盘，提供正向力矩。
Actuation of one clutch provides positive torque to the final drive, the capstan acting as the main power amplifier.
在功率输出级采用OCL互补对称功率放大电路，并对该功放电路增加电压负反馈，使得输出的正弦电压信号平滑而稳定。
At the power output, OCL complementally and symmetrical power amplifier is adapted. The output sine voltage becomes smooth and stable by adding voltage-negative-feedback to power amplifier.
用途：用于功率放大、驱动级放大。
Purpose: Power amplifier applications, driver stage amplifier applications.
本文对固态线性功率放大器的研制包括：前级放大器的研制、驱动级放大器的研制、末级放大器的研制。
There are three development for the Middle Power Amplifier : the first stage power amplifier, the drive stage power amplifier and the last stage power amplifier .
该纠偏机的特点是控制系统简单，只有一级运算放大器和一级功率放大器，故障机遇少，维修极为方便。
The correction character of this machine is simple for its controlling system. It has only one grade calculating amplifer, one grade power complifer, and so less accidents and easy maintenance.
给出了一种用于发射机末级的大功率脉冲功率放大器的设计方案和测试结果。
A design scheme and test results of a pulse power amplifier used for high-power transmitter is presented.
由于其具有良好的动态和线性特性，可以把此类宽带功放作为推动功率放大器使用，同后级功放一起构成宽带、高增益、高功率放大器。
They could also be served as a driver amplifier because of its good dynamic range and linearity and could be associated with another one to build up a wideband high power amplifier.
两个功率放大器的输出级均采用PMOS和NMOS晶体管特殊设计而成。
Two power amplifier output stage using PMOS and NMOS transistors by the special design.
两个功率放大器的输出级均采用PMOS和NMOS晶体管特殊设计而成。
Two power amplifier output stage using PMOS and NMOS transistors by the special design.
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