By taking Boost DC/DC converter as an example,this paper studies the effect on reducing EMI level of Boost DC/DC converter by different chaotic sources under the same chaotic modulation modes.

• 以Boost型DC DC变换器为对象,研究在同一混沌调制模式下,不同混沌源对降低开关电源电磁干扰水平效果的影响。