TY - GEN
T1 - Analysis of EMI reduction methods of DC-DC buck converter
AU - Park, Sanghyeok
AU - Huynh, Hai Au
AU - Kim, Soyoung
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/12/15
Y1 - 2015/12/15
N2 - The electromagnetic interference (EMI) generated from the DC-DC buck converter effects the performance of integrated circuits which receive power supply from the buck converter. In this paper, the EMI reduction techniques of DC-DC buck converter are presented. The damping resistor is applied to reduce the output noise of the buck converter. In time domain, this damping resistor technique reduces the output noise of the buck converter significantly but is not effective in reducing high frequency noise components. To resolve this issue, PCB design is modified to contain separate planes for input, output, switching, and ground ports. The TEM-cell, measurement results show that with this modification in addition to the damping resistor, the EMI is significantly reduced over a wide range frequency up to 1GHz.
AB - The electromagnetic interference (EMI) generated from the DC-DC buck converter effects the performance of integrated circuits which receive power supply from the buck converter. In this paper, the EMI reduction techniques of DC-DC buck converter are presented. The damping resistor is applied to reduce the output noise of the buck converter. In time domain, this damping resistor technique reduces the output noise of the buck converter significantly but is not effective in reducing high frequency noise components. To resolve this issue, PCB design is modified to contain separate planes for input, output, switching, and ground ports. The TEM-cell, measurement results show that with this modification in addition to the damping resistor, the EMI is significantly reduced over a wide range frequency up to 1GHz.
KW - damping resistor
KW - DC-DC buck converter
KW - EMI
KW - EMI measurement
KW - noise reduction
KW - PCB
KW - TEM-cell
UR - https://www.scopus.com/pages/publications/84964047842
U2 - 10.1109/EMCCompo.2015.7358337
DO - 10.1109/EMCCompo.2015.7358337
M3 - Conference contribution
AN - SCOPUS:84964047842
T3 - EMC Compo 2015 - 2015 10th International Workshop on the Electromagnetic Compatibility of Integrated Circuits
SP - 92
EP - 96
BT - EMC Compo 2015 - 2015 10th International Workshop on the Electromagnetic Compatibility of Integrated Circuits
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMC Compo 2015
Y2 - 10 November 2015 through 13 November 2015
ER -