一种带电流检测非互补式PWM产生电路设计

龙源期刊网 https://www.360docs.net/doc/bc18958937.html,

作者：林涛, 李德银,马荣兵,崔训军

来源：《现代电子技术》2010年第18期

摘要:高压钠灯是城市照明的重要设备,其供电电源对照明节能的效果和钠灯工作的可靠性具有十分重要的意义。针对交流调压电源应用于城市路灯节能照明这一特殊场合,分析了其带

电流检测的非互补式控制方式的工作过程,并采用CPLD设计了一种相应的PWM时序产生电路,节能照明电源采用此种斩波时序电路后可以带感性、阻性、容性负载,工作稳定。关键词:交流斩波调压; 节能; 城市照明; 非互补控制

中图分类号:TN919-34文献标识码:A

文章编号:1004-373X(2010)18-0208-03

Design of Non-complementary PWM Control Circuit with Current Detection

LIN Tao, LI De-yin, MA Rong-bing, CUI Xun-jun

(Energy-saving Department of No.50 Research Institute, China Electronics Technology Group Corporation, Shanghai 200063, China)

Abstract: The HPS lamp is an important city lighting equipment, whose electric power supply has the extremely vital significance to the energy-saveing effect of illumination and the working reliability of sodium lamp. The application of AC voltage regulation in city energy-saving, lighting is described. The working process of the non-complementary PWM control mode with current detection is analyzed. A corresponding PWM sequence generation circuit is designed with CPLD. The energy-saving illumination power supply with such a chopping sequence driving circuit can work stably in the inductive load, resistive load and capacitive load.Keywords: voltage regulator with AC chopper; energy saving; city lighting; non-complementary control

0 引言

近年来,城市的照明节能工作,已经引起了各地、各级政府的高度关注,并对城市照明节能提出更高要求。在早期的降压节能产品中主要经历了自耦变压器调压、补偿变压器调压、可控硅调压等几个阶段,但因其各自的缺点越来越不适合城市照明节能更高的要求,随着IGBT的出现