确保电解电容器的寿命长-LED灯泡为例
Abstract: Electrolytic capacitors are notorious for short lifetimes in high-temperature applications such asLED light bulbs. The careful selection o...
Abstract: Electrolytic capacitors are notorious for short lifetimes in high-temperature applications such asLED light bulbs. The careful selection o...
A light-emitting diode (LED) is a semiconductor device that emits narrow-spectrum incoherent light when forward-biased.The color of the emitted ligh...
Once relegated to the hinterlands of low cost indicatorlights, the LED is again in the spotlight of the lightingworld. LED lighting is now ...
为提高太阳能的利用率,以ATmega8单片机为控制核心,设计了一套光电跟踪与视日运动轨迹跟踪互补控制的双轴太阳跟踪器。该跟踪器在晴天时,利用光敏电阻采集光强判断太阳位置,控制步进电机实现光电跟踪;在阴天时,采集时钟器件PCF8583的时间信息,计算当前太阳位置来实现视日运动轨迹跟踪。实验表明:该太阳...
介绍一种基于CAN总线的牵引变电站自动化系统通讯规约的设计,CAN通讯规约采用标准帧,报文采用主动发送和发送查询两种处理形式。该设计在城市轻轨与地铁牵引变电站中的应用表明:可实现间隔层和通讯处理层的数据快速、可靠的交换,提高牵引变电站的安全性和稳定性 。 Abstract: This...