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半导体知识,放大电路分析基础、场效应管放大电路、负反馈放大电路、集成运算放大器、集成运算放大器的应用。波形发生与变换电路、低频功率放大电路、-semiconductor knowledge, amplifying circuit analysis based FET amplifier, negative-feedback amplifier, integrated amplifier, integrated operational amplifier applications. Occurre
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控制显示采用MAX530的数控开关型连续激光电源 9.7 利用ICL232的液晶显示器负电源电路 9.8 利用单片机实现智能控制 9.9 一种单片机控制的智能化盲人拐杖 9.10 I 2C总线在工业仪表中的应用 9.11 计算机智能时频测量卡的设计-control shows that using a MAX530 NC Switching Power CW Laser 9.7 use of ICL232 LCD negative supply circuit using SCM 9.8 Int
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论频谱中负频率成分的物理意义,希望对大家理解负频率有帮助-On the negative frequency components of the spectrum in the physical sense, we want to help understand the negative frequency
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带正负的同频率周期信号的相位差测量机的FPGA实现-With positive and negative periodic signals with frequency phase measuring machine FPGA Implementation
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某单位负反馈控制系统的开环传递函数为 ,要求闭环系统对斜坡输入 ,响应的稳态误差小于 ,相角裕量为 ,剪切频率 为10rad/s时。请采用超前网络来校正原有系统。-A unit negative feedback control system for open-loop transfer function, the slope requirements of the closed-loop system input, in response to the steady-state error i
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数字驱动由于其控制算法的灵活性可以有效地提高科氏质量流量计的工作性能。针对数字驱动的启振问题,本文基于模型分析和实验仿真,提出了正负阶跃交替激励启振方法。该方法通过跟踪检测传感器自激输出信号相位进行正负阶跃交替激励,使流量管的振动幅值持续、可靠地快速增大,进而结合非线性幅值控制算法和频率估计,可使流量管启振时间大幅度地缩短,克服了传统启振方法的局限性。-Digital drive control algorithm because of its flexibility can improve t
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低频频率计,选用24MHz的晶体,主频可达2MHz。用T1产生100us的时标,T0作信号脉冲计数器。假设晶体频率没有误差,而且稳定不变(实际上可达万分之一);被测信号是周期性矩形波(正负脉冲宽度都不能小于0.5us),频率小于1MHz,大于1Hz。要求测量时标1S,测量精度为0.1 -Low frequency, use 24MHz crystal, frequency up to 2MHz. Generate 100us with a time scale T1, T0 for the si
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应用VHDL语言编写设计一个正负脉宽可控的4分频的分频器。程序简单易懂;-Application of VHDL language to design a controlled positive and negative pulse frequency divider 4. Procedures are simple and easy to understand
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应用VHDL语言编写设计一个正负脉宽可控的4分频的分频器。程序简单易懂;-Application of VHDL language to design a controlled positive and negative pulse frequency divider 4. Procedures are simple and easy to understand
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纯水的负折射率计算,使用LH模型,适用频率范围小于3THz,可用于计算雨滴衰减模型-Negative refractive index of pure water calculated using the LH model for the frequency range is less than 3THz, can be used to calculate the rain attenuation model
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信号、系统及频率响应,离散时间傅立叶正反变换,离散LTI系统的频率响应-Signals, systems and frequency response, both positive and negative discrete-time Fourier transform, discrete frequency response of LTI system
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此实验中,实现了4连体共阴数码管的动态显示。被显示的数据是以2Hz的频率递增的。每个数码管中的小数点也会以2Hz的频率循环点亮。-This experiment, to achieve the 4 piece of negative dynamic digital display. The data is being displayed increasing the frequency of 2Hz. Each LED will take a decimal point in the cycle
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通过对 TIM1 定时器进行控制,使之各通道输出插入死区的互补PWM 输出,
各通道输出频率均为17.57KHz。
其中,通道1 输出的占空比为50 ,通道2 输出的占空比为25 ,通道3 输
出的占空比为12.5 。各通道互补输出为反相输出。
TIM1 定时器的通道1 到3 的输出分别对应PA.08、PA.09、PA.10 引脚,而通
道1 到3 的互补输出分别对应PB.13、PB.14 和PB.15 引脚,将这些引脚分别接
入示波器正接线,GND 引脚接示波器负接线,
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利用函数建立非负矩形脉冲,然后利用频谱分析函数对该矩形脉冲进行频谱分析,并进行频率移位修正(利用FFTSHIFT),观察该脉冲频谱。-Use function to create a non-negative rectangular pulse, and then use the spectral analysis of the rectangular pulse function spectral analysis, and the frequency shift correction (us
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巴特沃斯滤波器是电子滤波器的一种。巴特沃斯滤波器的特点是通频带内的频率响应曲线最大限度平坦,没有起伏,而在阻频带则逐渐下降为零。 在振幅 的对数对角频率的波特图 上,从某一边界角频率开始,振幅随着角频率的增加而逐步减少,趋向负无穷大。该段代码就是巴特沃斯高通和低通滤波器的设计。-Bart wo filter is a kind of electronic filters. Bart wo filter is characteristic of the passband frequency res
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一篇极好的关于傅立叶变换中负频率问题的研究文献。-the physical meaning of spectrum of negative frequency
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雷达测伪距 采用的正负调频法 matlab仿真源码 -The radar measured pseudorange positive and negative frequency modulation method matlab simulation source code
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Its Discrete s transform with only positive frequency and negative frequency in 3 different ways-Its Discrete s transform with only positive frequency and negative frequency in 3 different ways
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雷达测伪距 采用的正负调频法 matlab仿真源码 -The radar measured pseudorange positive and negative frequency modulation method matlab simulation source code
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NEGATIVE FREQUENCY CONCEPT
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