新型改进谐振型软开关技术研究  

Study on a new resonant soft switching technique

作　　者：王涌[1] 王威[1] 郑博闻[1] 

机构地区：[1]浙江工业大学信息工程学院电子科学与技术研究所,浙江杭州310023

出　　处：《电路与系统学报》2012年第3期55-59,共5页Journal of Circuits and Systems

基　　金：浙江省科技支撑和引导项目(2008C21096)

摘　　要：设计改进的无源无损软开关拓扑结构,通过电容和电感谐振满足ZVS和ZCS的条件,使开关管的电压和电流在开通和关断时时间错位,功率损耗基本为零,取得了有源软开关技术同样的效果。利用电磁场能量转移定理,理论分析了拓扑电路完整开关周期各个阶段的工作原理和工作条件,并采用Pspice软件对开关管两端的电压和流过的电流进行了仿真和比较。最后将该技术应用在了一台2KW的电除尘顶部电磁振打清灰控制系统中,在N沟道MOSFET开关管的软开关技术中得到了较好的应用和验证。A new topological structure circuit with passive non-destructive soft switching is designed. ZVS and ZCS is achieved when the capacitance and induction resonant. Soft switching makes the voltage and current of switching tube misplaced and power loss approached to zero. Well effective is obtained as same as the active soft switching technique. The operating principle of topology circuit and the staging with full on-off cycle are analyzed by using the energy transfer theorem of electromagnetic field. The voltage and current of the switching tube are simulated by adopting Pspice software. At last, the soft switching technique is well applied and certified in a top shaking control system of 2kw ESP, which uses N-MOSFET as switching tube.

关 键 词：软开关 仿真 谐振 

分 类 号：TN453[电子电信—微电子学与固体电子学]