-
2015全国大学生电子设计竞赛风力摆
说明: 脉冲宽度调制是一种模拟控制方式,根据相应载荷的变化来调制晶体管基极或MOS管栅极的偏置,来实现晶体管或MOS管导通时间的改变,从而实现开关稳压电源输出的改变。这种方式能使电源的输出电压在工作条件变化时保持恒定,是利用微处理器的数字信号对模拟电路进行控制的一种非常有效的技术。脉冲宽度调制是利用微处理器的数字输出来对模拟电路进行控制的一种非常有效的技术,广泛应用在从测量、通信到功率控制与变换的许多领域中。(Pulse width modulation (PWM) is an analog control method, which modulates the bias of transistor base or MOS gate according to the change of load, so as to change the turn-on time of transistor or MOS and realize the change of output of switching regulated power supply. This method can keep the output voltage of the power supply constant when the working conditions change. It is a very effective technology to control the analog circuit by using the digital signal of the microprocessor. Pulse width modulation (PWM) is a very effective technology to control analog circuits by using the digital output of microprocessors. It is widely used in many fields, from measurement, communication to power control and conversion.)
- 2020-06-22 16:20:02下载
- 积分:1
-
android 倒计时闹钟例子源码
用timetasker每秒执行一次并且按照时间显示常规减去分或秒
- 2014-10-17下载
- 积分:1
-
java
手机源码 android手机开发的源码,例子比较的多,有需要的可以下载(Source android mobile phone)
- 2010-12-29 10:57:48下载
- 积分:1
-
h264+pcm转为avi文件
【实例简介】将h264码流和pcm文件转为avi文件
- 2021-08-11 00:31:02下载
- 积分:1
-
android调用 webservice的两种方法 示例源码下载
android调用 webservice的两种方法 示例源码下载
- 2013-10-23下载
- 积分:1
-
Acvooding
说明: 根据蒙特卡罗仿真原理,对QPSK及QDPSK进行误码率仿真分析里面有7个程序(According to Monte Carlo simulation principle, there are 7 programs in BER simulation analysis of QPSK and QDPSK.)
- 2019-03-28 05:37:53下载
- 积分:1
-
android 下载管理
android 下载管理
- 2015-05-15下载
- 积分:1
-
OV9655-datasheet
ov9655 datasheet user guide(ov9655 pdf datasheet for user guide including V4 and V5 settings. At the same time it include the timing fig and register configure information)
- 2009-05-08 23:36:01下载
- 积分:1
-
AutoCompleteTextViewSimple
Auto Complete Text View Simple Source Code for Andriod.
- 2013-10-23 23:00:26下载
- 积分:1
-
Weather
一个基于android平台开发的天气更新软件,很实用(Based on android platform development weather update software, is very practical
)
- 2012-04-16 17:25:21下载
- 积分:1