Security and stability in the two-frequency circuit design.
安全、稳定的二分频电路设计。
Widely used in electronic ballast and other high voltage, high frequency circuit.
广泛用于节能灯、电子整流器以及其它高频、高压电路。
Widely used in electronic ballast and other and other high voltage, high frequency circuit.
广泛用于节能灯，电子镇流器以及其它高频、高压电路。
What are the current critical technical difficulties for radio frequency circuit developing?
目前射频电路开发的主要技术难点是什么？
Now the full integrated PLL (phase locked loop) chip is used widely in radio frequency circuit.
全集成锁相环芯片目前在射频电路中应用很广泛。
The intermediate frequency circuit includes QPSK modulation based on HFA3724, PLL circuit based on MB1502.
中频部分主要由HFA3724正交调制解调器和基于MB1502的锁相频率合成电路等组成。
Then some ways and means raising the stability of the high frequency circuit are provided to prevent and obviate the interferences.
指出了提高高频电路稳定性的途径和方法，用于预防和排除干扰。
A circuit network or element to vary the frequency response of an audio-frequency circuit, thus varying the quality of the sound reproduction.
一种改变音频电路的频率响应能力的电路网络或器件，通过这种改变可以调整声音重放的质量。
If the processing of PCB craft is improper, it is impossible to result the sending and receiving of the radio frequency circuit work normally.
PCB工艺如果处理不当，可能造成射频电路的发射和接收无法正常工作。
This paper describes the principle of WCDMA Radio Frequency circuit, introduces the content and method in the Radio Frequency Measure of Mobile System.
本文描述了WCDMA射频电路的原理，阐述了移动终端射频测试的内容和方法。
How to reduce the influences of cell phones electromagnetic radiation on human bodies, while promoting radio frequency circuit and wireless preferences?
如何实现在提升射频电路和天线的性能的同时，降低手机电磁辐射对人的影响？
The incremental magnetic rotary encoder, as a corner position sensor, can be improved its measure accuracy by the way of quadruplicated frequency circuit.
增量式磁旋转编码器作为转角位置传感器，可以用四倍频的方法提高其测量精度。
The teaching was based on the network and the research topics was designed mainly in the area of the key technolgy of the radio frequency circuit and antenna.
根据研究性教学的特点、学习观和教学理念，本文对“射频电路与天线”课程的研究性教学进行了探索与实践。
The capacitor coupling circuits are applied in the high frequency circuit. It concern the coupling coefficient that the resonance property and frequency property.
在高频电路中，有时用到电容耦合回路，其调谐特性和频率特性与耦合系数直接相关。
Supported by Hebei Natural Science Foundation under grant No. 503624, The high frequency circuit model of the transformer windings in GIS is researched in this paper.
本文结合河北省自然科学基金项目“特快速瞬态过电压对变压器的影响”（项目编号503624），重点研究了GIS中变压器绕组高频电路模型的建立方法。
The associated key technology of electron apparatus's front analog input circuit is deeply researched, including high frequency circuit theoretic and high speed amplifier.
本文还对仪器前端模拟输入通道所涉及的一些关键技术进行了深入研究，研究内容主要包括高频电路设计理论和高速放大器技术。
Industrial high performance foams fine celled polyurethane foams cellular silicone foams liquid silicone rubber high frequency circuit materials flexible circuit materials.
工业用高性能泡绵、微细孔聚氨脂泡沫材料、多孔硅泡沫材料、液体硅橡胶、高频印刷线路板材料、柔性印刷线路板材料。
Industrial high performance foams, fine celled polyurethane foams, cellular silicone foams, liquid silicone rubber, high frequency circuit materials, flexible circuit materials.
工业用高性能泡绵、细孔聚氨脂泡沫材料、孔硅泡沫材料、体硅橡胶、频印刷线路板材料、性印刷线路板材料。
The diode string structure can be used in a radio frequency circuit or a common analog circuit of the circuit using forward diode string and an electrostatic protection circuit.
上述二极管串结构可应用于射频电路或使用正向的二极管串的电路的普通模拟电路和静电保护电路中。
By imitating of the design characters of the high frequency circuit, the origin and the classification of the noise interferences of the low field NMR circuit system are analyzed.
此外本文参照高频电路的设计特点，分析了低场磁共振信号放大电路的噪声干扰来源，给出了一些减少噪声干扰的具体措施。
This kind of material is already extensive now to be used for common mode choke of high frequency circuit changer, high frequency dc-to-ac converter, zero order mutual-inductor and etc.
这种材料现已广泛用于共模扼流圈、高频开关电源、高频逆变器、零序互感器等许多电器元件。
For the design of low frequency circuit, the mutual link relations can be regard as lumped parameters, and the influence of line's mutual link and board layer's property can be neglected.
对于低频电路设计，互连关系视为集总参数，线迹互连和板层特性的影响可以不考虑。
Introduces the basic principle of phase-locked loop and NE564 PLL circuit structure and properties, and the use of phase-locked NE564 demodulating circuit and phase-locked frequency circuit.
介绍了锁相环的基本原理和锁相环ne564的电路结构和性能，及其用ne564构成的锁相解调电路和锁相倍频电路。
In allusion to the problems mentioned above, firstly, the paper models the distribution parameter circuit of the cable and the high frequency circuit of motor through the transmission theory.
针对上述问题，本文首先通过传输线理论建立了机车用电缆的分布参数模型，以及变频调速牵引电机的高频等效电路。
The second reason is that it is difficult to make these circuit voltage controllable over a large frequency range.
第二个理由是很难做到将这些电路的电压控制在一个很大的频率范围内。
If the frequency in the energy-transmitter's circuit is different from that of the receiver's circuit, they are non-resonant.
位于能量传输电路中的这个频率，如果和接收器电路中的频率不同，则两者没有共振。
Also, American Systems will support integrated circuit design and testing for analog, digital and radio frequency applications.
另外，美国系统将支持集成电路设计和模拟测试，数字和射频应用。
The design of target doppler frequency measurement circuit is very important in phase coded MMW radar system because of the high measurement precision requirement of target speed.
在某相位编码毫米波雷达系统中，要求很高的目标速度测量精度，因而目标多普勒频率测量电路的设计比较重要。
This paper tries to discuss the work principle of frequency transformation on the circuit where diodes work on on-off speciality.
该文系统地讨论二极管工作在开关特性下所组成电路的频率变换的工作原理。
This paper tries to discuss the work principle of frequency transformation on the circuit where diodes work on on-off speciality.
该文系统地讨论二极管工作在开关特性下所组成电路的频率变换的工作原理。
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