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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
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LanVisa
内网管理
相对应SQL 2000数据库文件
相对应SQL 2000数据库文件(相对应SQL 2000数据库文件)
- 2009-11-15 12:33:05下载
- 积分：1
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Flight-control-Law
介绍了飞机纵向和横航向控制律设计，给出了设计过程，设计细节作了详细论述(the control law for logititude and direction is introduced , the design process is gived,the design details is demostrated.)
- 2020-10-12 22:47:32下载
- 积分：1
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ed2_prac5_conta_finfin
program in hdl that this open mind in digital resources
- 2009-06-27 08:08:08下载
- 积分：1
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GNSS_R-Remote-Sensing-of-Ocean.caj
关于利用gnss反射测量技术对海洋进行遥感探测的博士论文，非常值得学习(On the use of gnss reflection measurement of marine remote sensing detection of doctoral thesis, is worth learning)
- 2016-10-05 10:33:03下载
- 积分：1
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ACS800
ABB变频器的资料，是ＡＣＳ８００的，非常实用，在工控调速领域都能用上．(ABB Inverter information ACS800 very practical in the field of industrial control speed can use.)
- 2008-07-23 09:41:00下载
- 积分：1
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Experts-recommend
一个BBS专家推荐系统的设计文档,BBS上PHP网站,实现的使用。asp . net实现了. . PHP网站和MYsql数据库。 net是用sql2005
(A BBS experts recommend system design documents, BBS is PHP website, realize is to use. Asp.net realized.. PHP website with MYsql database,. Asp.net is to use sql2005
)
- 2011-06-23 15:19:36下载
- 积分：1
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Desivices
说明： 电力电子装置故障录波器设计Design of fault recorder power electronic devices(Design of fault recorder power electronic devices)
- 2011-02-25 14:43:11下载
- 积分：1
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移动支付方案v1.3
中国某电信公司电子商务平台分为两层：支撑层和业务层，支撑层为电子商务业务的开展提供支撑功能，包括认证系统、支付系统、移动终端安全系统以及整个电子商务业务的计费和结算系统；业务层包括各种具体的电子商务业务以及为各种业务提供公共服务功能的业务平台。(a Chinese telecommunications company e-commerce platform is divided into two tiers : the supporting layer and the business layer, layer support for the development of e-commerce to provide business support functions, including authentication systems, payment systems, mobile terminals and security systems throughout the e-commerce business billing and settlement systems; Layer including business specific business and e-commerce operations for the full range of public services business platform.)
- 2005-07-25 15:06:29下载
- 积分：1
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cjcoHOSHcjco
站长，不好意思...
我将我的信箱写错了...
写成：ddccbbaa@sina.cn了...
前面我传输的文件是：“qibaoshanplan.doc”这个文件，并且，是我的一篇论文底稿，我还想您提出了建议“增加创意文案的文件上载”的类型。
我的名字叫：褚江。
这篇文建，我又重新上传了一下...
我会为我的错误买单，马上我再传一篇论文，是我在《云计算》的课堂上书写的...
希望站长，能够将弟我，重新添加到PUDN的大家庭中。(Master, I am sorry ... I was wrong ... in my mailbox written: ddccbbaa@sina.cn up ... in front of my files transferred are: " qibaoshanplan.doc" the file, and it is my a thesis papers, I would like your recommendations " to increase creative copy of the file upload" type. My name is: Chu River. This CCA, I re-uploaded it ... I' ll pay for my mistake, I immediately re-transmission of a thesis, I was in the " cloud computing" classroom writing ... hope that the station can be The brother I re-added to PUDN the family.)
- 2013-07-12 02:15:04下载
- 积分：1
