Problem of Excessive CE102 for Interleaved Parallel BUCK Power Supplies and Its Solutions
In view of the problem of excessive conducted noise in the frequency range from 10 kHz to 10 MHz for interleaved parallel BUCK power supplies,the working process,ripple suppression,original noise,and standard limits of interleaved parallel BUCK power supplies were analyzed.A design method for electromagnetic interference(EMI)filters was proposed.By analyzing the high-frequency character-istics and suppression principle of differential mode capacitors,an insertion loss test was conducted,and the selection of differential mode capacitors was optimized.The experimental results show that the interleaved parallel BUCK power supply with EMI filters can meet the testing standards of CE102 in GJB 151B—2013,proving the effectiveness of the design.
interleaved parallel BUCK power supplyEMI filterCE102differential mode capacitor
万方数据
维普
