he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with only 2 discrete levels, for example 0V and 5V and a constant period. The current value of this signal at a certain poiTnt of time is proportional to its Duty Cycle. That s the High Time during one period divided by the period. It can also be calculated as the average value during a particular period. That means after low pass filtering, (e.g. RC circuit) the signal becomes analog, with an actual value controlled by the microcontroller. The PWM functionality enables the LPC932 to control for example the speed of DC motors or the brightness of electric lighting.
标签: signal Modulated analog create
上传时间: 2015-05-14
上传用户:CHINA526
用Visual Basic 6.0+Access 做的考试系统源代码
上传时间: 2015-05-14
上传用户:gaome
ANNUAL REPORT TO CONGRESS The Military Power of the People’s Republic of China 2005
标签: CONGRESS Military Republic ANNUAL
上传时间: 2013-12-27
上传用户:zhengzg
This document describes the MPI and MPI standards They are both extensions to the MPI standard The MPI part of the document contains clarications and corrections to the MPI standard and denes MPI The MPI part of the document describes additions to the MPI standard and denes MPI These include miscellaneous topics process creation and management onesided communications extended collective operations external interfaces IO and additional language bindings
标签: MPI extensions describes the
上传时间: 2015-05-15
上传用户:CHENKAI
CSB637 uCOS-II with Visual C
上传时间: 2015-05-15
上传用户:561596
Visual C++程序设计--基础与实例分析 课件
上传时间: 2015-05-15
上传用户:wangzhen1990
用友u8财务源码,用visual basic开发
上传时间: 2013-12-24
上传用户:缥缈
XML 包装模板:将 XML 文档转换为 Visual Basic 类
上传时间: 2015-05-16
上传用户:cjf0304
《Visual C#.NET数据库开发经典案例解析》的配套光盘,包含进销存管理系统、人力资源管理系统、生产管理系统、财务管理系统、图书馆管理系统、酒店管理系统、医院管理系统、教务管理系统。
上传时间: 2013-12-07
上传用户:com1com2
FreeJaPoll is a free software that make possible to add in a simple way a web-survey to your own site. FreeJaPoll is a servlet written in Java programming language the program logo (on the right) shows The Duke (Java mascotte) and a duke-like colored chicken...why? Because the word "Poll" in my native language, Italian, is very similar to the corrispective English word "Chiken" -)
标签: FreeJaPoll web-survey software possible
上传时间: 2015-05-16
上传用户:无聊来刷下