基于频谱分散的声谐振抑制电路研究  

Circuit Simulation of Acoustic Resonance Suppression based on Spectrum Spread Technique

作　　者：傅钟炜[1] 程为彬[1] 郭颖娜[1] 

机构地区：[1]西安石油大学,陕西西安710065

出　　处：《电力电子技术》2007年第10期36-38,共3页Power Electronics

摘　　要：基于高强度气体放电(High IntensityDischarge,简称HID)灯高频电子镇流器中抑制声谐振现象的需要,设计了一种参数扰动频率调制电路,分析了频率调制的特征。应用SABER仿真软件,进行时域和频域仿真,并讨论了输出频谱对扰动参数的敏感特性。结果表明,参数扰动的频率调制技术可以增加PWM波的输出频率成份,减小各次谐波幅值,达到频谱分散抑制声谐振的目的。A kind of frequency modulation circuit with perturbed parameter was designed to suppress the acoustic resonance in electronic ballast for High Intensity Discharge （HID） lamp operating at high frequency.The characteristics of frequency modulation are analyzed.The simulation was taken in the Time-domain and the Frequency-domain with SABER software.The sensitivity of output spectrum to perturbed parameter is discussed.It is shown by the simulation results,that frequency modulation with perturbed parameter can increase the output frequencies, decrease the amplitudes of various harmonics,so as to suppress the acoustic resonance by spreading the PWM spectrum.

关 键 词：谐振:频谱分析 调频/高强度气体放电灯 

分 类 号：TN781[电子电信—电路与系统]