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电源技术 PCCM下推挽正激变换器的研究与实现
提出了一种24V/15A 直流变换器的设计方法。主电路采用推挽正激电路，通过在传统推挽电路的基础上增加一个箝位电容，起到抑制偏磁和开关管关断电压尖峰的作用。控制采用峰值电流控制方式（Peak CurrentControlled Model，简称PCCM），为了克服其对占空比要求的限制，加入了斜坡补偿环节。在进行详细的理论分析基础上，给出了 ...
数据结构 The government of a small but important country has decided that the alphabet needs to be streamline
The government of a small but important country has decided that the alphabet needs to be streamlined and reordered. Uppercase letters will be eliminated. They will issue a royal decree in the form of a String of B and A characters. The first character in the decree specifies whether a must come ( B ...
其他书籍 With a worldwide community of users and more than a million dedicated programmers, Perl has proven t
With a worldwide community of users and more than a million dedicated programmers, Perl has proven to be the most effective language for the latest trends in computing and business.
Every programmer must keep up with the latest tools and techniques. This updated version of Advanced Perl Programmin ...
其他 功能：多线程、E-mail转发、自动隐藏
功能：多线程、E-mail转发、自动隐藏，huffman、JPEG压缩，全屏、指定区域或最前窗口抓图，窗口或全屏控制方式，彩色或黑白显示，修改注册表、取密码、记录键盘信息等等。
缺点：控制端在WIN98下运行，每抓一幅图会吃掉几十K内存，不知道为什么，在WIN2000下运行没有发现这种情况，知道原因请通知我。E-mail:KelvinSpace@21 ...
书籍 Spread-Spectrum+Communication+Systems+2nd
Spread-spectrum communication is a core area within the field of digital
communication. Originally used in military networks as countermeasures against
the threats of jamming and interception, spread-spectrum systems are now widely
used in commercial applications and are part of several wireless and ...
技术资料 sony CMOS传感器 IMX178LQJ-C dataSheet
sony CMOS传感器datasheet，IMX178LQJ-C_Data_SheetDescriptionThe IMX178LQJ-C is a diagonal 8.92 mm (Type 1/1.8) CMOS active pixel type image sensor with a square pixelarray and 6.44 M effective pixels. This chip operates with analog 2.9 V, digital 1.2 V and interface 1.8 V triple powersupply, and has ...
技术资料 基于TPS54340的汽车类5V/2.1A USB充电器设计包括BOM及原理图
描述   This USB 3.0 charger provides 5V @ 2.1A over an automotive input range of 8V - 40V. It uses the integrated FET TPS54340 PWM Buck controller and implements cable voltage droop compensation. A TPS2546 charging port controller provides data line switching plus an integrated FET with du ...
传感与控制 6位数微电脑型计数器（48*96mm）
特点 最高輸入頻率 10KHz 计数速度 50/10000脈波/秒可选择 四种输入模式可选择(加算,減算,加減算,90度相位差加減算) 90度相位差加減算具有提高解析度4倍功能 输入脈波具有预设刻度功能 计数暂时停止功能 3组报警功能 15BIT类比输出功能 数位RS-485界面 2:主要規格 脈波輸入型式: Jump-pin selectable current sourcing(NPN) ...
软件工程 Managing Humans is a selection of the best essays from Michael Lopps web site, Rands In Repose. Draw
Managing Humans is a selection of the best essays from Michael Lopps web site, Rands In Repose. Drawing on Lopp s management experiences at Apple, Netscape, Symantec, and Borland, this book is full of stories based on companies in the Silicon Valley where people have been known to yell at each other ...
技术资料 PW2163D.pdf规格书下载
The PW2163D is a high frequency, synchronous, rectified, step-down, switch-mode converter withinternal powerMOSFETs. It offers a very compact solution to provide a 3A continuous current over awide input supply range,with excellent load and line regulation.The PW2163D requires a minimal number of rea ...