The application of the variode in frequency modulation circuit are discussed.
讨论变容二极管在调频电路中的应用。
The paper has introduced the properties, principle of operation of CD4046 and the frequency modulation circuit.
介绍了芯片CD40 4 6的特点、工作原理以及由其构成的调频电路。
Have designed the frequency modulation circuit in the CIC-CPPFC electronic ballast circuit, which would decrease the crest factor of circuit.
设计了用于电流输入连续型电荷泵功率因数校正电子镇流器的调频电路，以减小电路的峰值系数。
In order to improve the frequency stability of the frequency modulation circuit and the crystal oscillator, using the temperature compensation circuit is extremely effective method.
为了提高调频电路和晶体振荡器的频率稳定度，采用温度补偿电路是一种极其有效的方法。
In the paper it was studied that the frequency synthesizer and multiplier and the phase modulation circuit of the rubidium atomic frequency standards (RAFS).
本论文重点是研究被动型铷原子频标中的调制电路、频率合成电路和倍频电路。
A pulse frequency modulation (PFM) circuit for retinal prosthesis, which generates electrical pulses with frequency proportional to the intensity of incident light, is presented.
提出了一种用于视网膜修复的脉冲频率调制电路结构。
The phase-lock technique is widely used in many fields, such as modulation and demodulation circuit and frequency synthesizer circuit.
锁相技术在调制和解调、频率合成电路等很多领域应用极其广泛。
The remote control device crystal frequency stabilization using pulse amplitude modulation transmitter, A simpler circuit, high frequency stability, launched 28MHZ are continuous carrier amplitude.
该遥控装置采用晶体稳频脉冲调幅发射机，电路较简单，频率稳定度高，发射的是间断的28MHZ等幅载波。
Any subtle change of capacitance can be measured through the method of modulation on high-frequency harmonic oscillation return circuit.
电容的微小变化可通过对高频谐振回路调制的方法进行测量。
The system adopts AGC circuit, uses DDS technology to realize such functions as frequency modulation, amplitude modulation, ASK, PSK, etc.
系统采用自动增益控制电路，并运用DDS技术实现调频、调幅，ASK、PSK等功能。
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。
Adopt high frequency multi voltage circuit, PWM pulse width modulation technology and high-power IGBT devices.
采用高频倍压电路，应用PW M脉宽调制技术和大功率IGBT器件。
The laser beam modulation frequency has been increased to achieve better accuracy. The circuit has been designed in a simple manner to reduce unexpected error and debugging complexity.
采用同相放大电路成功实现了对微弱调制光电信号的接收，并采取简单但行之有效的方法滤除了偏置电压引入的噪声干扰；
Oscillation modulation circuit which can provide the signal carrier with stable frequency is the key point in the subject.
本课题重点在于设计能给发射机电路提供稳定频率的振荡调制电路。
Functions such as frequency modulation and circuit reset are achieved with different buttons and shown on the LED digital display tube.
并且通过不同按键可以实现调频，电路复位等功能并在LED数码显示管上进行显示出来。
Functions such as frequency modulation and circuit reset are achieved with different buttons and shown on the LED digital display tube.
并且通过不同按键可以实现调频，电路复位等功能并在LED数码显示管上进行显示出来。
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