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电源技术 LED的电源管理
A light-emitting diode (LED) is a semiconductor device that emits narrow-spectrum incoherent light when forward-biased.The color of the emitted light depends on the chemical composition of the semiconductor material used, and can benear-ultraviolet, visible or infrared. LEDs are more prevalent tod ...
电源技术 离线式LED照明简述
 
As environmental concerns over traditional lighting increaseand the price of LEDs decreases, high power LEDsare fast becoming a popular lighting solution for offl ineapplications. In order to meet the requirements of offl inelighting—such as high power factor, high effi ciency, isol ...
电源技术 DN445微型模块LED驱动器
 
Once relegated to the hinterlands of low cost indicatorlights, the LED is again in the spotlight of the lightingworld. LED lighting is now ubiquitous, from car headlightsto USB-powered lava lamps. Car headlights exemplifyapplications that capitalize on the LED’s clear advantages&mda ...
单片机编程 C8051F320列车安全巡检仪的设计
提出了一种基于C8051F320的列车安全巡检仪的设计方案，详细阐述了巡检仪的各个模块的硬、软件设计。巡检仪集信息采集、轴温检测、照明和记录存储等功能于一体，实现了对列车安全巡检工作有效的监督和科学管理。系统软件采用C51编写，对单片机进行有效的电源管理，保证了巡检仪的稳定性、可靠性和低功耗性。
Abstract:
&n ...
测试测量 智能照明控制器测量环境光线
Abstract: This application note explains how to design an intelligent lighting controller that senses and measures the ambient lightlevel with an ambient light sensor (ALS). Equipped with a real-time clock (RTC), the controller also knows when to turn lighting on oroff at specified times. The syst ...
其他嵌入式/单片机内容 he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with on
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 perio ...
Windows Mobile The goal of this project is to explore the idea of point-based radiosity, which is a shooting radio
The goal of this project is to explore the idea of point-based
radiosity, which is a shooting radiosity technique suggested by Mark
Harris at UNC. The primary idea is that features available in
graphics hardware can be utilized to perform radiosity calculations.
Facilities such as flat shading, diff ...
文件格式 We propose a novel approach for head tracking, which combines particle filters with Isomap. The part
We propose a novel approach for head tracking, which combines particle filters with Isomap. The particle filter works on the low-dimensional embedding of training images. It indexes into the Isomap with its state variables to find the closest template for each particle. The most weighted particle ap ...
单片机开发 This demonstration shows how a ZigBee coordinator can be set up. This demo allows the Demonstratio
This demonstration shows how a ZigBee coordinator can be set up. This demo allows
the Demonstration Board (PICDEM Z or Explorer 16) to act as either a "Switching Load
Controller" (e.g. a light) or a "Switching Remote Control" (e.g. a switch) as defined by
the Home Controls, Lighting profile. It ...
系统设计方案 Programming the USB2DMX by Jan Menzel 3rd January 2002 Abstract This document describes how the
Programming the USB2DMX
by Jan Menzel
3rd January 2002
Abstract
This document describes how the USB2DMX DMX512 interface for the USB-port by Lighting-
Solutions1 has to be programmed. It includes all information the software engineer has to supply to the
operating systems USB-stack to talk to the US ...