查询词典 power amplifier

Compared with the conventional magnetic bearing switching power amplifier, the volume and switching loss is reduced, and the reliability is higher. It can apply in space application better.

与传统类型的磁轴承开关功放相比，减小了体积和开关损耗，提高了可靠性，特别适合于空间环境应用。

To overcome these drawbacks, the application of current mode tri-state modulation technology to the switching power amplifier for magnetic bearings is proposed, as well as its special advantages.

文中首先分析了电流纹波对磁轴承系统的影响，接着分析了电流两态调制技术本身的固有不足及电流三态调制技术在磁轴承开关功放应用中的优势。

The output-input properties of the measurement system, power amplifier and active magnetic actuator when the linear, hamonic and rotating control signal respectly acts on, is investigated and measured.

在转子轴承实验台上，以实验的方法研究了转子振动主动控制系统各环节的输入输出特性以及电磁执行器在线性输入、谐波输入和旋转控制信号作用下的稳态响应特性。

The research results have shown that the configuration of the magnetic bearing reduces overall system size, and has high efficiency. The axial and radial suspension forces have great linearity. The symmetrical characteristic strenuously, and movement of every degree of freedom around balanceable position has no coupling and the control flux of every degree of freedom is independent. It is beneficial to simplify and design the controller and the circuit power amplifier. The magnetic bearings operate stably with decentralized PID controllers.

研究结果表明：这种磁轴承结构合理紧凑，效率高；磁轴承轴向、径向悬浮力具有较好的线性和对称性，有利于控制器及功放电路的简化与设计，并获得良好的拉制性能；各自由度运动和磁路几乎没有耦合，采用分散独立的PID控制器实现了磁轴承的稳定工作。

Design of Phase-shift Power Amplifier for Control of Active Magnetic Bearing;2. A digital control of phase-shift circuit;3. Based on laser interferometer theory,Multi-wave interferometer by phase-shift ing method is applied on high-reflective coated optical flatness measurement.

本文以光干涉原理为基础，分析多光束干涉原理特点及其在平面形貌测量中应用可能，提出应用移相方法对被测镀高反膜表面进行调制，得到一系列被调制的干涉图样，经计算机对干涉图样进行自动采集和图像解包裹，获得被测表面的三维形貌数据，并通过实际测试验证了该方法的可行性和科学性。

Have independent outputs and mix and output the function, can connect the organ stop or the power amplifier

具有独立的输出和混和输出功能，可接调音台或功率放大器

SOI-LDMOS is adopted by RF power amplifier because of its excellent isolation performance and small parasitical effect.

SOI-LDMOS以优良的隔离性能、较小的寄生效应被RF功率放大器所采用。

At least one saturated power amplifier is provided for each of the at least one constant amplitude, phase modulated drive signals.

对至少一个固定幅度相位被调的驱动信号的每一个提供至少一个饱和的功率放大器。

The microwave power amplifier is the key component in communication system.

微波功率放大器是通信系统中的关键器件。

This is pretty much irrelevant to power amplifier design.

这跟功率放大器并没有过多的关联。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。