-
Internet-based-examination-system
研究基于互联网的在线考试系统的设计与实现，解决在线考试系统中存在的试题仓库，智能组卷，自动保存等问题。(Of Internet-based online examination system design and implementation of online examination system to resolve questions that exist in the warehouse, intelligent test paper, auto-save and other issues.)
- 2011-09-20 23:34:33下载
- 积分：1
-
fmradiosystems
又一篇关于音频动态范围压缩的相关珍贵论文，这是一个很实用但是又很少有人关注的领域，希望对大家有帮助！这是第15篇(And an audio dynamic range compression on the relevance of valuable papers, it is a very pragmatic but also very few areas of concern, and they hope to have everyone help! This is the first 15)
- 2009-03-30 10:24:53下载
- 积分：1
-
MATI一AB仿真和实验结果表明了所定义和推广的电流检测方法的正确性和有效性。
FBD
为了更好地进行谐波和无功功率的补偿与控制，叶FBD(Fryze一Buchholz一DPenbrock)法的定
义进行了完善，并给出了补偿电流检测的直接法和间接法，在三相电力系统中对FBD间接法进行
了推广研究，利用参考电压进行投影变换，不仅可以检测出功率电流和零功率电流，还可以检测出
基波有功电流、基波无功电流、谐波电流以及任意次谐波电流等，大大拓展了FBD法的应用范围和领域。MATI一AB仿真和实验结果表明了所定义和推广的电流检测方法的正确性和有效性。
(In order to improve the performance of active power filter(APF) harmonic current detection method, a harmonic current detection based on FBD(Fryze-Buchholz-Dpenbrock) algorithm was proposed. Reference voltage was generated by phase locked loop(PLL), and load current was projected to reference voltage, and then the active power fundamental current, reactive power fundamental current, harmonic current, fundamental negative sequence current, any harmonic current and so on can be detected accurately by using low-pass filter(LPF), and in the case of distorted voltage, the method was also applicable. The simulation results verify the fast dynamic speed, high detection accuracy, simple implement and good project value of the proposed algorithm. MATLAB simulation results confirm the feasibility and validity of the method.)
- 2013-08-16 16:14:36下载
- 积分：1
-
theory-and-application-of-IC
本课件是集成电路原理，对于学电子类的同学很有帮助。课件内容丰富。(The courseware is integrated circuit principle, very helpful for learning electronics students. Courseware is rich in content.)
- 2013-04-25 10:23:34下载
- 积分：1
-
BLDCM
无刷直流电机结构图，用visio画的，可以粘贴到论文中(Brushless DC motor structure diagram)
- 2018-03-20 21:13:43下载
- 积分：1
-
PEM-project
本论文结合“太阳能电解水制氢系统”，通过建立系统相关的数学模型和运用MATAB软件对系统进行理论分析研究
(This paper combines the "Solar water electrolysis hydrogen production system," related to the system through the establishment of a mathematical model of the system software and application MATAB theoretical analysis)
- 2014-07-24 13:59:15下载
- 积分：1
-
s-tranformandinverse_st
关于s变换的和反变换代码，也是做毕业论文时搜到的，希望大家没能用到(A basis for efficient representation of the S-transform invert S-transform ,also have some examples)
- 2014-05-06 10:57:16下载
- 积分：1
-
1383
：介绍了一种基于数字信号处理器（DSP）的移相调频（Phase-Shifted and Frequency-Varied，PSFV）PWM控制
逆变电源，给出了主电路拓扑结构，分析了其控制原理并设计了其控制程序流程图。新颖的PSFV 控制能够实现输出
电压90％的调整率，输出电流波动小于单纯移相调功PWM方式，并在轻载时保持连续。功率开关器件零电压零电流
通断（Zero-Voltage-Zero-Current Switching，ZVZCS）软开关的实现，有利于进一步提高开关频率和降低开关损耗。采用
高性能的专用DSP 芯片TMS320F2812 实现了系统的数字控制，满足了系统控制的灵活性和实时性，减小了系统的
体积和生产成本。仿真分析和实验结果证明了此控制模式的可行性与合理性。()
- 2008-03-28 20:26:19下载
- 积分：1
-
A-novel-algorithm-implementing-PLL
设计了一种新颖的三相锁相环的设计算法，可以用于不平衡电压的相位检测和跟踪。(A modified soft phase lock loop algorithm improving the performance inDynamic phase tracking and detection of unbalanced voltage)
- 2012-03-07 16:30:43下载
- 积分：1
-
danbihuanboost
boost变换器闭环控制设计方案及仿真模型(Boost converter closed-loop control design scheme and simulation model)
- 2020-11-07 17:19:50下载
- 积分：1
