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电源技术 高功率PoE PD接口与集成反激式控制器
 
To this day, Power over Ethernet (PoE) continues to gainpopularity in today’s networking world. The 12.95Wdelivered to the Powered Device (PD) input supplied bythe Power Sourcing Equipment (PSE) is a universal supply.Each PD provides its own DC/DC conversion from anominal 48V supply ...
单片机编程 PCA954X家庭的I C SMBus多路复用器与开关
The Philips family of Multiplexers and Switches consists of bi-directional translating switches controlled via the I2C or SMBus to fan out an upstream SCL/SDA pair to 2, 4 or 8 downstream channels of SCx/SDx pairs. The Multiplexers allow only one downstream channel to be selected at a time, while th ...
其他书籍 by Randal L. Schwartz and Tom Phoenix ISBN 0-596-00132-0 Third Edition, published July 2001. (See
by Randal L. Schwartz and Tom Phoenix
ISBN 0-596-00132-0
Third Edition, published July 2001.
(See the catalog page for this book.)
Learning Perl, 3rd Edition.
Table of Contents
Copyright Page
Preface
Chapter 1: Introduction
Chapter 2: Scalar Data
Chapter 3: Lists and Arrays
Chapter 4: Subroutin ...
软件设计/软件工程 MSComm 控件通过串行端口传输和接收数据
MSComm 控件通过串行端口传输和接收数据，为应用程序提供串行通讯功能。MSComm控件在串口编程时非常方便，程序员不必去花时间去了解较为复杂的API函数，而且在VC、VB、Delphi等语言中均可使用。 Microsoft Communications Control（以下简称MSComm）是Microsoft公司提供的简化Windows下串行通信编程的ActiveX控件，它为应用 ...
Java编程 Java媒体播放器 本程序用Java Media Framework制作
Java媒体播放器
本程序用Java Media Framework制作，实现的功能如下：
1、可播放多个文件，并有“全部循环、单曲循环、不循环”三个播放模式。
2、在播放视频文件时，可全屏播放，在视频窗口上单击右键出现控制菜单。
3、播放时可选择“上一曲、下一曲”进行切换。
4、选取多个文件时，用CONTROL、Shift键帮助，用法同其 ...
电子书籍 G UILLAIN-BARRéSYNDROME(GBS)is an uncommon disorder,but one whose impact is far out of proportion
G
UILLAIN-BARRéSYNDROME(GBS)is an uncommon disorder,but one
whose impact is far out of proportion to its incidence.Despite a
usually good prognosis,GBS is a particularly frightening and often life-
altering experience for those diagnosed with the disorder.Many patients
are acutely aware of the rapi ...
书籍 Smart+Grids
n present power system, the engineers face variety of challenges in
planning, construction and operation. In some of the problems, the engineers need
to use managerial talents. In system design or upgrading the entire system into
automatic control instead of slow response of human operator, the engi ...
技术资料 50W隔离型离线式DC.pdf
ABSTRACTThe flyback power stage is a popular choice for single and multiple output dc-to-dc converters at powerlevels of 150 Watts or less. Without the output inductor required in buck derived topologies, such as theforward or push-pull converter, the component count and cost are reduced. This appli ...
技术资料 TI官方对三相三电平SVPWM的解析
   TI官方对三相三电平SVPWM的解析，有助于理解三电平SVPWM的原理，里面还对SVPWM的扇区进行优化处理；标题：Center-Aligned SVPWM Realization for 3- Phase 3- Level Inverter摘要：The space vector pulse width modulation (SVPWM) has been widely used in 3- phaseinverter control system. The most effec ...