Description: 开关磁阻电机调速系统的主要研究
“开关磁阻电机(Switched reluctance motor简称SR电动机)”一词源见于美国学者S.A.Nasar1969年所撰论文，它描述了这种电机的两个基本特征：1开关性——电机必须工作在一种连续的开关模式，这是为什么在各种新型半导体器件获得后才得以发展得主要原因；2磁阻性——它是真正的磁阻电机，定、转子具有可变磁阻回路。-SRM system's major "Switched Reluctance Motor (Switched reluc Dance motor referred to the SR motor), "the source found American scholar S.A.Nasar196 9, internally, papers, which described the two basic electrical characteristics : a switch-- motor must work in a continuous mode switch, This is why the various new semiconductor device was developed after they main reason; two Reluctance-- it is the real reluctance motor, the stator and rotor with variable reluctance circuit. Platform: |
Size: 74752 |
Author:松鼠 |
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Description: 本设计为330kV变电站初步设计，分为主变压器选择、主接线、短路电流计算、电气设备的选择等几部分，同时附有电气主接线图等图纸加以说明。-the design of the preliminary design 330kV substation, the main transformer sub-choice, the main wiring, short-circuit current, Electrical equipment options, etc., along with electrical wiring map drawings show. Platform: |
Size: 2159616 |
Author:叶勤 |
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Description: vhdl语言编写的实现uart协议的程序,用于rs232电气接口程序开发.支持比特率从2400-115200.-VHDL languages realize UART protocol procedures, electrical RS232 interface for program development. to support the bit rate from 2400-115200. Platform: |
Size: 5120 |
Author:陈想 |
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Description: 汽车电气线路图读图基础，对于这方面研究的人员很有帮助。-Automotive electrical circuit diagram读图the basis for research in this area very helpful staff. Platform: |
Size: 163840 |
Author:lfw |
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Description: 电脑家电控制系统
本系统是利用电脑通过串口和单片机进行通信，从而通过电脑控制家电的开和关，也可用于其它地方控制其它电器。
此系统制作资料齐全，也很简单。
电脑上位机软件下载
电路原理图和PCB板图下载
源程序下载
1.本系统可以通过PC远程或者在家控制家用电器，为适应各种场合，只需更改上位机相应的LABEL的名称即可！（这点也是这个软件的不足之一，会在以后的时间里，慢慢完善。）
2.硬件原理图中，三端稳压管7805，未加任何散热装置，经实验，由于电流过大，可能会导致7805的损坏！解决办法如下：
（1）加装散热片
（2）在7805的输出端接个大功率三级管来扩流！
3.因涉及到220V市电，实验时，请务必注意人身安全！！！
-Computer control system for home appliances
This system is the use of computers through the serial port and single-chip communication, computer-controlled home appliances through the opening and clearance, can also be used to control other electrical appliances elsewhere.
The production of this system are well documented, but also very simple.
PC computer software downloads
Schematic and PCB circuit board map download
Download source
1. The system or by PC remote control of home appliances at home, in order to adapt to a variety of occasions, just to change the PC name corresponding to the LABEL! (This is also one of the shortcomings of the software will be at a later time, slowly improving.)
2. Hardware schematics, the three-terminal voltage regulator tube 7805, without any cooling device, by the experiment, because the current is too large, may result in damage to 7805! Solution is as follows:
(1) installation of heat sinks
Platform: |
Size: 535552 |
Author:cjwei |
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Description: 各种防雷的电路，可用在不同电器的电源等部分，进行防雷保护。-A variety of lightning protection circuit which can be used in different parts of electrical power, such as, for lightning protection. Platform: |
Size: 156672 |
Author:胡栋 |
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Description: 详细介绍包括直流电动机、同步电动机、无刷电动机、步进电动机等电机的工作原理和应用电路。机器人系统设计必需。-Detail, including DC motors, synchronous motors, brushless motors, stepper motors, such as the work of electrical circuit theory and applications. Necessary for the robot system design. Platform: |
Size: 4067328 |
Author:neversee |
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Description: 这是华北电力大学研究生入学考试历年电路真题，想考这所大学的同学可以有所帮助
00-07年华电电路试题-This is the North China Electric Power University, Graduate Record Examination真题circuit over the years, the university would like to test can be helpful to students 00-07 years electrical circuit test Platform: |
Size: 2172928 |
Author:寇凤海 |
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Description: RF Circuit Design,Theory and Application:
The field of high-frequency circuit design is receiv-
ing significant industrial attention due to a host of radio-frequency }RF) and而crowa}e
(MW} applications. Improved semiconductor devices have made possible a prolifera-
tion of high-speed digital and analog systems as observed in wireless communication,
global positioning, RADAR, and related electrical and computer engineering disci-
plines. This interest has translated into a strong demand for engineers with comprehen-
live knowledge of high-frequency circuit design principles.
-RF Circuit Design,Theory and Application Platform: |
Size: 15368192 |
Author:fuhaijun |
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