Influence of Sensing Resistor on IC-level Noise Measurement of DC-DC Converters by 1 Ω Method
This paper presents a method for determining the appropriate sensing resistance value when measuring integrated circuit (IC) noise in DC-DC converter ICs using the 1 Ω method as outlined in IEC 61967-4. By modeling the DC-DC converter circuit as an equivalent RLC resonance loop and accounting for the parasitic inductance of the sensing resistor, we established the permissible range for the sensing resistance. Through circuit simulations, this study examines the impact of sensing resistance and parasitic inductance on the ringing noise of DC-DC converter ICs, ultimately determining the optimal resistance value for accurate IC-level noise measurement.
Authors
- Eakhwan Song (ORCID: https://orcid.org/0000-0003-4176-6179)
- Jiseong Kim (ORCID: https://orcid.org/0000-0001-7333-6427)
- Hyun Ho Park (ORCID: https://orcid.org/0000-0001-8518-1151)
- Hongseok Kim (ORCID: https://orcid.org/0000-0001-5222-619X)
- Sangho Cho (ORCID: https://orcid.org/0000-0001-5764-2555)
Institutions
- Korea Advanced Institute of Science and Technology (KR)
- Kwangwoon University (KR)
- University of Suwon (KR)
Publication Details
- Published
- 2024-10-07
- DOI
- https://doi.org/10.1109/emccompo61192.2024.10742059
- Citations
- 1
- Primary Topic
- Electromagnetic Compatibility and Noise Suppression
- Type
- article
- Field-Weighted Citation Impact
- 0.21
Funders
- LG Electronics