Nguyen, V.-T. and Pham, T. and Luu, T.-H. and Nguyen, T.-L. and Nguyen, H.-T. and Hoang, V.-P. and Tran, X.-N. and Nguyen, V.-H. and Nguyen, V.-H. (2022) High-Efficient DC-DC Converter Based on Hybrid SI-SC Topology for Portable Devices. In: Conference of 2022 IEEE International Conference on IC Design and Technology, ICICDT 2022, 21 September 2022 Through 23 September 2022, Hanoi.
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This paper presents a DC-DC converter circuit using a hybrid switched inductor-switched capacitor (SI -SC) topology for Li-Ion battery powered devices. This is a combination structure of 3-level converter and traditional buck converter. Thanks to redistributing the charging of the parasitic capacitor to another flying capacitor in the opposite-phase SC instead of discharging to ground, the power efficiency can be improved. Simulation results indicate that the maximum efficiency can be achieved is 88 which is 17 higher than that of the traditional circuit under the same conditions. The ripple of the output voltage and the current on the inductor are reduced in comparison to those of the traditional circuit. At the output voltage of 1 V, the output voltage ripple gains less than 5 of the output voltage while on-inductor current ripple anticipated less than 7.8 of the average current. © 2022 IEEE.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Divisions: | Faculties > Faculty of Radio-Electronic Engineering |
| Identification Number: | 10.1109/ICICDT56182.2022.9933120 |
| Uncontrolled Keywords: | Efficiency; Electric inductors; Lithium-ion batteries; Silicon; Topology, 3 levels; 3-level buck converter; Buck converters; High efficient; Higher efficiency; Hybrid DC-DC converter; Output voltages; Portable device; SI-SC, Buck converter |
| Additional Information: | Conference of 2022 IEEE International Conference on IC Design and Technology, ICICDT 2022 ; Conference Date: 21 September 2022 Through 23 September 2022; Conference Code:184070 |
| URI: | http://eprints.lqdtu.edu.vn/id/eprint/10617 |
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