PCB的特殊材料基板性能特点 特种材料及基板性能简介-PCB substrate material to the special features and special materials on the substrate properties

控制信号由接收机的通道进入信号调制芯片，获得直流偏置电压。它内部有一个基准电路，产生周期为20ms，宽度为1.5ms的基准信号，将获得的直流偏置电压与电位器的电压比较，获得电压差输出。最后，电压差的正负输出到电机驱动芯片决定电机的正反转。当电机转速一定时，通过级联减速齿轮带动电位器旋转，使得电压差为0，电机停止转动。当然我们可以不用去了解它的具体工作原理，知道它的控制原理就够了。就象我们使用晶体管一样，知道可以拿它来做开关管或放大管就行了，至于管内的电子具体怎么流动是可以完全不用去考虑的。-Control signal from the receiver into the signal modulation of the channel chip, access to the DC bias voltage. It has a base internal circuit, resulting in a period of 20ms, the base width of 1.5ms signal, will be the DC bias voltage and the voltage comparator potentiometer to obtain the output voltage difference. Finally, the positive and negative output voltage difference to the motor driver chip motor positive decision. When the motor speed must, through the reduction gear drive cascading rotary potentiometers, the voltage difference is 0, motor to stop rotating. Of course, we do not have to understand the principle of its work, the control principle to know its enough. As we use the same transistors that can switch it to do or to enlarge

徐士良《C常用算法程序集》第2版 第2部分-"C algorithms procedures set" second edition, Part 2

c语言高级编程与实例剖析,包括全书所以代码，很不错的c编程书籍-c program code

C++经典语法与应用，类的编写与应用，构造与析构函数，函数的重载，类的继承，函数覆盖，基类与派生类的构造函数、析构函数先后调用顺序，如何在派生类构造函数中向基类的构造函数传递参数，this成员变量，类型转换的内幕，虚拟函数与多态性,引用和指针变量的区别与共同处。VC工程的编译原理与过程，将工程中不同的类拆分到不同的文件中，每一个类由一个.h和.cpp文件共同完成，头文件重复定义问题的解决，培养了学员良好的编程习惯，也为以后分析MFC AppWizard生成的工程奠定了良好基础。-classical grammar and C applications, such as preparation of the application structure and destructor function, and the heavy-duty, class inheritance, function coverage, the base class and the derived class constructor and destructor function has the calling sequence, how the derived class constructor function to the base class constructor function transmission parameters, this member variable, Insider type conversion, virtual functions and polymorphism, and the indicators used variables and the differences between common point. VC works compiler theory and the process of engineering Resolution different types of different documents, every one by one category. h and. cpp document completed, the first document to repeat the definition of the solutio

这是一本photoshop基础教程,对初学者有帮助-This is the basis for a photoshop tutorial for beginners has to help

个人编程技巧收集整理(Delphi)-Collection of personal programming skills (Delphi)

方便阅读收藏的C语言函数速查帮助文件格式电子书-User-friendly collection of C language function help file format e-book Info

本文档是（作者：钱能）《C＋＋程序设计教程》课后习题答案。 选题编辑：张朝阳 责任编辑：徐培忠、林庆嘉 -(Author : Money can), "C++ Programming Guide" to get answers to the questions. Topics Editor : Zhang Chaoyang Editor : Xupeizhong, along she Baker

一个不错的VC小册子-a good VC booklet