Purpose: Low frequency power amplifier.
用途： 用于低频放大。
The concept of time - frequency power spectrum is introduced.
引出了时—频功率谱的概念。
PNP epitaxial silicon transistor. Low frequency power amplifier.
PNP外延硅晶体管。低频功率放大器。
Frequency power head, adjusting speed arbitrary, wide speed range.
变频动力头，转速任意调节，作用范围广。
So study of high frequency power supply is delivered in this thesis.
因此本文针对高频电源进行了理论分析和实验研究。
Thyristor medium frequency power supply has been widely used in industrial heating.
晶闸管中频电源已广泛应用于工业加热领域。
A new thyristor medium-frequency power supply startup circuit is introduced in this article.
介绍一种新的晶闸管中频电源启动电路。
A series hybrid active power filter for aeronautical variety-frequency power grid is studied.
研究了一种适用于航空变频电网的串联混合有源电力滤波器。
In this paper, the failure analysis of a type of high frequency power transistor is introduced.
介绍了对某型号高频大功率晶体管进行的失效分析。
The design of the low-frequency power is the key factor to the control process of the mine lift.
在交流提升机的自动控制中，低频电源的设计是低频拖动控制的关键。
The high frequency power supply involves the oscillator, the impedance matching and the power amplifier.
高频信号源包括振荡电路，阻抗匹配电路和功率放大电路。
The power FETs are more and more widely used in radio-frequency power amplification in all-solid state transmitter.
场效应功放管在全固态发射机的射频功放中应用得越来越广泛。
The Raman and FTIR spectra show that the structure and composition of the films change with the radio-frequency power.
拉曼及傅里叶变换红外光谱分析显示，随着射频功率的改变，薄膜的结构和组分也随之变化。
The SA4828 used as SPWM signal generator controls the IPM via driver circuits to produce variable frequency power supply.
它以SA 4828作为SPWM信号发生器，经过驱动电路控制IPM模块，产生三相变频电源。
The outlook of high frequency switch power supply in application to high fidelity audio frequency power amplifier is indicated.
指出了高频开关电源在高保真音频功率放大器中广阔的应用前景。
Introduced the method of multi-transistor modular design, for the output ability are limited in single high-frequency power transistor.
介绍了因单个高频大功率晶体管输出能力有限而采用多管并联运用(积木式)的方法。
A random resonance self-adaptive algorithm is stated and used for fault signal detection in medium frequency power supply with good result.
提出了一种随机共振自适应算法，并运用于中频电源故障信号检测，取得了较好的效果。
This thesis pays more attention to the drive circuit of high frequency power MOSFET, power regulation circuit and frequency-tracing circuit.
本文主要研究高频功率MOSFET的驱动电路、频率跟踪电路以及功率调节电路。
In AC electrical field, the stable homogeneous glow discharge will appear by using dielectric barrier layer and high-frequency power source.
在交流电场中，利用介质阻挡层和高频激励源，可获得稳定均匀的大气压下辉光放电。
An interference adaptive trapper for operating frequency power supply, based on the principle of adaptive noise canceller, has been designed.
本文根据自适应噪声对消器的原理设计出一种性能优良的工频电源干扰自适应陷波器。
Optimal design for the windings of high frequency power transformer in SNIPS can reduce greatly the windings loss to improve SNIPS power density.
高频开关电源功率变压器线圈优化设计技术能有效减小变压器损耗以及尺寸，提高开关电源功率密度。
It is approved that the novel high frequency power transformer can be applied on 50kva soft-switching submerged arc welding inverter successfully.
实践表明，该新型结构的功率变压器可以成功的在50kva软开关埋弧焊逆变器中应用。
High frequency power supply for electrostatic precipitator has some excellences such as high efficiency, short time of spark recovery and small volume.
高频静电除尘电源具有效率高、火花恢复时间短、体积小等一系列优点。
A long field running of the medium-frequency power supply shows that the control system presented in this paper greatly improves its stability and quality.
长期的现场运行表明，这一控制系统大大提高了电源的可靠性及中频电源产品质量。
Temperature sensor will be used to measure the temperature signal and build temperature for PID adjusting to realize the automatic output high frequency power.
利用温度传感器测到被控对象的温度信号与设定温度值进行PID调节，从而控制高频输出功率的大小。
For the purpose of meeting high efficiency and premium efficiency motor tests, a set of static variable frequency power supply test system was researched and designed.
从满足高效和超高效电机的效率测试出发，研究和设计了一套基于静止变频电源的电机效率测试系统。
Plasma was created by dielectric barrier discharge (DBD) system, which consisted of home-made middle frequency power supply and parallel plane electrode configurations.
等离子体的产生采用了自制中频电源和平行板电极结构组成的介质阻挡放电系统。
The research in this thesis is focused on the low harmonic variable-frequency power for the system meeting the needs of wind tunnel propeller model testing requirements.
旨在研究满足螺旋桨飞机模型风洞试验要求的为高功率密度电驱动系统供电的低谐波变频电源。
When frequency converter and PLC is at fault, automatic switch to the original soft start work frequency power operation, ark to ensure the normal work of the compressor.
当变频器及PLC发生故障时，自动切换到原软启动柜工频电源运行，以保证压缩机的正常工作。
The working principle of the parallel contravariant IGBT variable frequency power supply and its application in the quenching process of engine crankshafts are introduced.
介绍了并联逆变式IGBT变频电源的工作原理及在汽车发动机曲轴淬火上的应用情况。
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