混凝土配料控制中的控制.

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

一种低噪声可变增益放大器。文中介绍了以AD603 为核心构成的低噪声可变增益放大器的实用电路, 通过模式选择、 引脚编程, 可选择不同的带宽, 以及得到不同的增益。通过对增益控制方式的选择, 可得到最佳的信 噪比。-A low noise variable gain amplifier. In this paper, in order to AD603 as the core consisting of low-noise variable gain amplifier circuit of the practical, through mode selection, lead programming, choice of different bandwidth, as well as different gain. Way to gain control through the choice of the best available signal to noise ratio.

在IEEE网站上下载的混沌方面的论文希望对大家在混沌通信方面有极大帮助-In the IEEE website chaotic papers hope all of you in the chaotic communication has greatly helped

C语言小程序，可在C++环境下正常运行，无需修改-C language applet can C++ Environment normal operation, no need to modify

AT收发短信的标准指令，对需要编写收发短信的朋友都有帮助，通俗易懂。-Standards for sending and receiving SMS AT commands, send and receive text messages on the need to write a friend have a help, easy to understand.

说明书关于电力电子器件的说明书说明书 关于电力电子器件的说明书-Manual on the power electronic devices on the Manual Manual Manual of power electronic devices

api函数库，适用于利用api编程-api libraries, applicable to the use of api programming

如何快速有效的开发高质量代码，是每个程序员的梦想，看看吧，对你有帮助-how rapid and effective development of high-quality code that is the dream of every programmer, let"s see it, and for your help

想更深地理解VC++编程，这本书将是你最好的选择，本书较详细地介绍了MFC类库的程序结构。 -to a deeper understanding of VC program, this book will be your best choice, the book more detailed description of the procedures MFC structure.

使用在机顶盒和数字电视一体机的dvbci标准-Used in set-top boxes and integrated digital television standard machine dvbci