作　　者： ; ;

机构地区： 华南理工大学自动化科学与工程学院

出　　处： 《电源技术》 2011年第7期822-824,共3页

摘　　要： 针对双磁环无极灯电子镇流器因工作频率高难以实现软开关工作的状况,提出一种能简单实现开关管零电压开通的设计方法。首先给出双磁环无极灯的双变压器等效模型及其等效简化模型,并在简化模型基础上得到无极灯电子镇流器的等效电路模型。对该电路模型谐振部分进行频域分析,从而提出一种能简单实现软开关的参数设计方法并通过仿真验证所述方法的正确性。 For design of electronic ballasts for two toroidal ferrite core electrodeless lamps,an design method was proposed which could realize the zero voltage switching of the Mosfet.At first,a two-transformer equivalent model and the equivalent simplified model of two toroidal ferrite core electrodeless lamps was given.Then the equivalent circuit model of the electronic ballasts for two toroidal ferrite core electrodeless lamps was presented based on the equivalent simplified model.The resonance part of the equivalent circuit model was analyzed based on the frequency-domain characteristics.Finally,a parameter design strategy which could realize the soft switching of the Mosfet was presented and a simulation was executed to verify the analysis.

关 键 词： 无极灯 电子镇流器 频域分析 软开关

领　　域： [电气工程]