【摘要】 介绍一种具有自动定时调光功能的路灯用高压钠灯电子镇流器,论述电路的基本工作原理和控制策略,通过单片机控制实现电子镇流器的点火、恒功率、调光和保护控制。然后给出一个额定功率为400W的高压钠灯电子镇流器的实验结果。更多还原

【Abstract】 A digital controlled electronic ballast for high pressure sodium lamps is presented. Its digital controller includes some functions for soft starting, lamp fault protection, power control for dimming, frequency modulation.The circuit offers the capability of dimming the lamp power from 100% to 50%. The experimental results are given by testing a digital electronic ballast for 400W HPS lamp.更多还原