Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorQu, Yongen_US
dc.contributor.authorShu, Weien_US
dc.contributor.authorChang, Joseph Sylvesteren_US
dc.identifier.citationQu, Y., Shu, W. & Chang, J. S. (2019). A fully soft switched point-of-load converter for resource constraint drone applications. IEEE Transactions On Power Electronics, 35(3), 2705-2713.
dc.description.abstractThe power efficiency and weight of present point-of-load (POL) dc-dc converters for drone applications are often compromised because they suffer from large switching losses at continuous conduction mode for heavy loads and excessive hardware overheads at discontinuous conduction mode for light loads. This paper presents a boundary conduction mode (BCM) control scheme for POL converters embodying a single operation mode. This is achieved by means of a hysteresis voltage controller to turn on/off the output power stage when necessary. The proposed BCM control scheme achieves high power efficiency (≥91.2%) over a wide load range (5 mA-1 A) by means of fully soft switching. Specifically, a hysteretic current controller is proposed to realize ZCS, and an adaptive dead time controller is proposed to realize ZVS. Further, the proposed BCM control scheme requires a small output inductor (0.82 μH) by means of designing the customizable peak inductor current. To verify the proposed BCM control scheme, we realize a BCM-based POL converter that features an input voltage range of 5-16 V, output voltage range of 2.5-8 V, switching frequency of 1.5 MHz, peak power efficiency of 96.8%, and ≤35 mV output voltage undershoot/overshoot for 1-A load step. When being benchmarked against state-of-The-Art counterparts, the proposed design features the lowest voltage undershoot/overshoot, the highest switching frequency, ∼5.7× smaller inductor, and ∼11% higher power efficiency at light loads.en_US
dc.relation.ispartofIEEE Transactions on Power Electronicsen_US
dc.rights© 2019 IEEE. All rights reserved.en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleA fully soft switched point-of-load converter for resource constraint drone applicationsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.subject.keywordsBoundary Conduction Modeen_US
dc.subject.keywordsFully Soft Switchingen_US
item.fulltextNo Fulltext-
Appears in Collections:EEE Journal Articles

Citations 20

Updated on Nov 28, 2023

Web of ScienceTM
Citations 20

Updated on Oct 24, 2023

Page view(s)

Updated on Dec 3, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.