Coupled planar inductor design for high power density power supplies
Kvist, Jeremia (2023-12-12)
J. Kvist
12.12.2023
© 2023, Jeremia Kvist. Tämä Kohde on tekijänoikeuden ja/tai lähioikeuksien suojaama. Voit käyttää Kohdetta käyttöösi sovellettavan tekijänoikeutta ja lähioikeuksia koskevan lainsäädännön sallimilla tavoilla. Muunlaista käyttöä varten tarvitset oikeudenhaltijoiden luvan.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202312123698
https://urn.fi/URN:NBN:fi:oulu-202312123698
Tiivistelmä
Efficient power conversion is a critical aspect of modern electronics. Switched-mode power supplies (SMPS) play a large role in this domain. This thesis studies the process of designing a custom planar inductor for SMPS applications. The proposed planar inductor is designed to be manufactured in multiple layer printed circuit board (PCB).
The process begins with creating requirements for the inductor by studying the inductor in a demo board, which has an inductor that will be used as a baseline for the custom component. The reference inductor will be replaced by the component produced in the study. From the reference component and its specification, requirements for the planar inductor are created. Initial calculations are performed to get a rough idea of how the inductor should be designed. Based on the calculations, a 3D-model is created. Simulations are performed for the model and the component values are tuned to achieve better similarity between the model and the requirements. After the simulations are accurate enough, a real component is manufactured.
The manufactured component is tested, and the performance is compared against the original inductor. The test results are also compared to the 3D-model and the initial calculations. After gathering the results, the usage of the custom planar inductor in actual designs is discussed.
The main purpose of this thesis is to bridge the gap between conceptual design and real-world applicability. This work also strives to promote a better understanding of planar magnetics. Additionally, it seeks to make the process of designing a multi-layer custom planar inductor for high power applications more available to designers. By shedding light on the process, this work contributes to the advancement of more efficient, more compact power electronics. Lastly, it is wanted to see how much prototyping can be done with simulations and what kind of results and accuracy can be expected.
The process begins with creating requirements for the inductor by studying the inductor in a demo board, which has an inductor that will be used as a baseline for the custom component. The reference inductor will be replaced by the component produced in the study. From the reference component and its specification, requirements for the planar inductor are created. Initial calculations are performed to get a rough idea of how the inductor should be designed. Based on the calculations, a 3D-model is created. Simulations are performed for the model and the component values are tuned to achieve better similarity between the model and the requirements. After the simulations are accurate enough, a real component is manufactured.
The manufactured component is tested, and the performance is compared against the original inductor. The test results are also compared to the 3D-model and the initial calculations. After gathering the results, the usage of the custom planar inductor in actual designs is discussed.
The main purpose of this thesis is to bridge the gap between conceptual design and real-world applicability. This work also strives to promote a better understanding of planar magnetics. Additionally, it seeks to make the process of designing a multi-layer custom planar inductor for high power applications more available to designers. By shedding light on the process, this work contributes to the advancement of more efficient, more compact power electronics. Lastly, it is wanted to see how much prototyping can be done with simulations and what kind of results and accuracy can be expected.
Kokoelmat
- Avoin saatavuus [38841]