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http://dx.doi.org/10.22156/CS4SMB.2020.10.08.047

A Simulation Investigation on the Spurious Emission Reduction of the Automotive DC-DC Converter  

Chae, Gyoo-Soo (Division of Information Communication Technology, Baekseok University)
Publication Information
Journal of Convergence for Information Technology / v.10, no.8, 2020 , pp. 47-52 More about this Journal
Abstract
In this study, a simulation investigation was conducted on the method of reducing switching noise and spurious emission among design methods for step-down DC-DC converter modules for automotive. A typical 4-layer converter circuit using a PMIC(Power Management Integrated Circuit) chip was presented, and the simulation results of conductive emissions at two input terminals (+, -) and the point between the input filter and the PMIC was performed in the 1.0~5.0MHz band and the 100MHz band. The results for the conducted and radiated emissions in the HF(3~30MHz) and VHF(30-300MHz) bands were presented. It showed an improvement of about 10dB over the bands by routing the output terminal placed on the 3 or 4-layer in the opposite direction to the input terminal. The result of this study is expected to be useful in the design of the DC-DC converter modules in the future because it gives a better improvement compared to the existing methods.
Keywords
Automotive; DC-DC converter; Conductive emission; Simulation; EMI;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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