EPS용 ECU의 Boost Converter회로 개선을 통한 EMC 향상에 관한 연구

Recently, The development of vehicles lead to increase of electronic products in vehicle. Many electronic products can result in intereference of electromagnetic waves each other. It may occur malfunction and then If worst comes to worst, I might die. This paper propose that EMC performance of ECU is improved by optimizing boost circuit. To improve EMC performance, We consider and look for the noise source of ECU. The result, we found that boost snubber optimizing decease radiated noise. so we can find robust value of R and C in boost snubber at Gate IC. We can know that the RE characteristics of ECU is improved at 80MHz to 100MHz.