Influence of DC Bias on the Electrical Characteristics of SMD Inductors
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Zlebic, Cedo J.Kljajic, Dragan R.
Blaz, Nelu V.
Živanov, Ljiljana D
Menicanin, Aleksandar
Damnjanović, Mirjana S.
Article (Published version)
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As the dc bias flows through a ferrite chip surface mount device (SMD) inductor, it tends to premagnetize the core and reduce its inductance and impedance. It is observed that this drop is especially emphasized when the dc current exceeds the safety limit given by the manufacturer. Therefore, it is necessary to investigate and predict the degree of electrical characteristics degradation as well as the dependence of the core losses on core temperature. In this paper, a measurement technique for the investigation of the influence of dc bias on the electrical characteristics of SMD inductors (i.e., inductance, resistance, Q factor, and real and imaginary part of impedance) for printed circuit board applications is presented. Analysis is based on the model of the SMD inductor, which can be presented as a two-port equivalent circuit with intrinsic and extrinsic parameters. For calculation of the parameters of the SMD inductor, extracted from measured S-parameters using vector network analyz...er, the in-house software tool IndCalc was used.
Keywords:
parameter extraction / impedance / frequency response / Electromagnetic devicesSource:
IEEE Transactions on Magnetics, 2015, 51, 1Publisher:
- IEEE-Inst Electrical Electronics Engineers Inc, Piscataway
Funding / projects:
- Innovative electronic components and systems based on inorganic and organic technologies embedded in consumer goods and products (RS-MESTD-Technological Development (TD or TR)-32016)
- Synthesis of nanopowders and processing of ceramics and nanocomposites with specific electric and magnetic properties for application in integrated passive components (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45021)
DOI: 10.1109/TMAG.2014.2356253
ISSN: 0018-9464
WoS: 000349446800061
Scopus: 2-s2.0-84922824237
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Institut za multidisciplinarna istraživanjaTY - JOUR AU - Zlebic, Cedo J. AU - Kljajic, Dragan R. AU - Blaz, Nelu V. AU - Živanov, Ljiljana D AU - Menicanin, Aleksandar AU - Damnjanović, Mirjana S. PY - 2015 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/839 AB - As the dc bias flows through a ferrite chip surface mount device (SMD) inductor, it tends to premagnetize the core and reduce its inductance and impedance. It is observed that this drop is especially emphasized when the dc current exceeds the safety limit given by the manufacturer. Therefore, it is necessary to investigate and predict the degree of electrical characteristics degradation as well as the dependence of the core losses on core temperature. In this paper, a measurement technique for the investigation of the influence of dc bias on the electrical characteristics of SMD inductors (i.e., inductance, resistance, Q factor, and real and imaginary part of impedance) for printed circuit board applications is presented. Analysis is based on the model of the SMD inductor, which can be presented as a two-port equivalent circuit with intrinsic and extrinsic parameters. For calculation of the parameters of the SMD inductor, extracted from measured S-parameters using vector network analyzer, the in-house software tool IndCalc was used. PB - IEEE-Inst Electrical Electronics Engineers Inc, Piscataway T2 - IEEE Transactions on Magnetics T1 - Influence of DC Bias on the Electrical Characteristics of SMD Inductors IS - 1 VL - 51 DO - 10.1109/TMAG.2014.2356253 ER -
@article{ author = "Zlebic, Cedo J. and Kljajic, Dragan R. and Blaz, Nelu V. and Živanov, Ljiljana D and Menicanin, Aleksandar and Damnjanović, Mirjana S.", year = "2015", abstract = "As the dc bias flows through a ferrite chip surface mount device (SMD) inductor, it tends to premagnetize the core and reduce its inductance and impedance. It is observed that this drop is especially emphasized when the dc current exceeds the safety limit given by the manufacturer. Therefore, it is necessary to investigate and predict the degree of electrical characteristics degradation as well as the dependence of the core losses on core temperature. In this paper, a measurement technique for the investigation of the influence of dc bias on the electrical characteristics of SMD inductors (i.e., inductance, resistance, Q factor, and real and imaginary part of impedance) for printed circuit board applications is presented. Analysis is based on the model of the SMD inductor, which can be presented as a two-port equivalent circuit with intrinsic and extrinsic parameters. For calculation of the parameters of the SMD inductor, extracted from measured S-parameters using vector network analyzer, the in-house software tool IndCalc was used.", publisher = "IEEE-Inst Electrical Electronics Engineers Inc, Piscataway", journal = "IEEE Transactions on Magnetics", title = "Influence of DC Bias on the Electrical Characteristics of SMD Inductors", number = "1", volume = "51", doi = "10.1109/TMAG.2014.2356253" }
Zlebic, C. J., Kljajic, D. R., Blaz, N. V., Živanov, L. D., Menicanin, A.,& Damnjanović, M. S.. (2015). Influence of DC Bias on the Electrical Characteristics of SMD Inductors. in IEEE Transactions on Magnetics IEEE-Inst Electrical Electronics Engineers Inc, Piscataway., 51(1). https://doi.org/10.1109/TMAG.2014.2356253
Zlebic CJ, Kljajic DR, Blaz NV, Živanov LD, Menicanin A, Damnjanović MS. Influence of DC Bias on the Electrical Characteristics of SMD Inductors. in IEEE Transactions on Magnetics. 2015;51(1). doi:10.1109/TMAG.2014.2356253 .
Zlebic, Cedo J., Kljajic, Dragan R., Blaz, Nelu V., Živanov, Ljiljana D, Menicanin, Aleksandar, Damnjanović, Mirjana S., "Influence of DC Bias on the Electrical Characteristics of SMD Inductors" in IEEE Transactions on Magnetics, 51, no. 1 (2015), https://doi.org/10.1109/TMAG.2014.2356253 . .