| Autor: |
Maliha Elma, Madhava Sarma Vemuri, Umamaheswara Rao Tida |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
IEEE Access, Vol 11, Pp 90563-90574 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2023.3281359 |
| Popis: |
Due to heterogeneous integration, there is an increased demand for on-chip DC-DC converters to provide multiple voltage domains for efficient operation of the system. Towards this, planar magnetic-core based inductors gained popularity due to their increased inductance density for on-chip buck converter realization. To ensure proper operation of the converter, the magnetic-core should not saturate, and over-design of the inductor decreases the converter efficiency significantly. Also, the magnetic-core area budget is limited for on-chip design. This paper proposes an optimization framework to design an efficient multi-phase buck converter with the magnetic-core solenoid inductor for the given specifications. We investigate two cost-functions for optimization where Cost function1 considers only power loss reduction, whereas Cost function2 considers both power loss and inductor footprint. Full-wave simulations on commercial tool show that the optimized multi-phase buck converter with $500~mA$ load current achieves 88.13% and 88.06% efficiency for Cost function1 and Cost function2, respectively. The footprint for the optimized inductor with Cost function2 has a 10% reduction compared with the optimized inductor with Cost function1. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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