Fig. 1. Circuit of Buck Converter
Fig. 2. Parts Placement (a) Top layer of switching parts(case-A) (b) Top layer of switching parts(case-B)
Fig. 3. I/O Measurement (a) case-A (b) case-B
Fig. 4. CE characteristics in Broadband (a) CE Results in Simulation, (b)CE Results of Case-A, (c)CE Results of Case-B
Fig. 5. CE characteristic in Mobile-band (a) CE Results of Case-A, (b) CE Results of Case-B
Fig 6. Radiated Emission Measurement setup
Fig. 7. RE measurement result (a) Simulation result, (b) Results of case-A, (c) Results of case-B
Fig. 8. EMI-bicon Antenna measurement (a) Results of case-A, (b) Results of case-B
Table 1. Input-Output Measurement
Table 2. Results of CE characteristic for plus and return voltage
Table 3. Results of CE characteristic for plus and return voltage
Table 4. Simulations and experimental results decrease value
References
- Soo-sul Hwang, Jae-Deuk Lee, "Investigation and Circuit Analysis for DC-DC Converter", Korea aerospace Research institute, Vol. 5, No. .2 pp. 166-173, Nov. 2006.
- Young-jin Choi, Sang-june Kim, Tae-Kyung Kim, "DC/DC Switching Converter Characteristics", The institute of Electronics Engineers of Korea, pp. 743-746, Nov. 1999.
- Jin-Hong Park, "Analysis of Emission characteristics of DC/DC Converter by Component Placement",Korea Academia-Industrial Cooperation Society, Vol. 19, No. 2, pp. 639-653, 2018.
- Lho, Young Hwan, Lee, Sang Yong, Kim Yoon Ho, "A study on design of PWM DC/DC Power Converter", Korean Society for Railwav, pp. 209 -214, Nov. 2009.
- P.C.Adell, et al,"Total-Dose and Single-Event Effect in DC/DC Converter Control Circuitry", IEEE Transactions on Nuclear Science, Vol. 50, No. 6, Dec. 2003. DOI: http://dx.doi.org/10.1109/TNS.2003.820757
- "MPQ4432 Low Quiescent Current Synchronous Step-Down Converter", Monolithic Power System, Datasheet.