搜索资源列表
-
0下载：
Design Guide for Rectifier Use
A transformer s required secondary A.C. voltage varies greatly with the type of rectifier chosen and filter arrangement.
Use the formulas below as a guide based on the D.C. voltage you require and the rectifier/filt
-
-
0下载：
PECTRUM of the input current drawn by the electric
drive from the network is affected by the used type of the
input rectifier. In the case of the diode rectifier, the number of
its pulses is decisive. Standard AC adjustable speed drives
utili
-
-
0下载：
本论文设计了由AT89C52单片机为控制核心,用红外线为监测装置的防盗报警系统。该系统中红外对管作为红外线的发射和接收部分。发射部分采用红外发光二极管，而使用光敏三极管作为接收部分，接收红外发光二极管发出的红外线（不可见光）。单片机将通过内部的软件系统检测到接收管的导通或截止状态,并根据检测到的信号状态,进行判断并输出报警信号, 直至按复位按钮或电源开关。声光报警信号由9014三极管驱动构成声光报警电路,进行声光同时报警。电源部分采用变压器将220V交流市经变压器降压，桥式整流器整流，电解
-
-
0下载：
This work shows the results of applying a shunt active power filter to compensate the harmonic currents generated by a three-phase controlled rectifier full wave, with the load linear circuits (RL).
-
