The analyses show that using a low equivalent series resistance (ESR) capacitor with a carefully determined value and raising switching frequency can decrease output voltage fall.
分析表明，采用合适电容值的低等效寄生电阻的滤波电容，并提高开关频率，可减小输出电压跌落。
2
The shortcoming of traditional filter media, such as high and fluctuating resistance, low efficiency for very small size dust, high frequency of regeneration etc.