摘要
提出了开关变换器的双频率PWM调制(Bi-frequency Pulse Width Modulation,简称BF-PWM)技术,分析了其工作原理和调制特性,利用PSPICE对双频率PWM调制Buck变换器进行了仿真,并与传统PWM调制Buck变换器的仿真结果进行了比较。仿真和实验结果表明,双频率PWM调制方法具有比传统PWM调制方法优异的抑制电磁干扰(Electro-magnetic Interference,简称EMI)性能。
A novel modulation technique,bi-frequency pulse width modulation（BF-PWM）techniquef,or switching DC/DC converters is proposed and investigated.PSPICE simulation of BF-PWM Buck converter is performed and compared with the conventional pulse width modulation（PWM）Buck converter.Simulation and experimental results show that BF-PWM Buck converter benefits better electromagnetic interference（EMI）performance compared with PWM Buck converter.
出处
《电力电子技术》
CSCD
北大核心
2010年第7期79-80,共2页
Power Electronics
基金
国家自然科学基金资助项目(50677056)~~
关键词
变换器
脉宽调制
电磁干扰
converter
pulse width modulation
electromagnetic interference
