On Energy Efficiency of Switched-Capacitor Converters

published_or_final_versio

Data clustering with cluster size constraints using a modified k-means algorithm

2014-2015 > Academic research: refereed > Refereed conference paperAccepted ManuscriptPublishe

Rapidly replanning A*

2016-2017 > Academic research: refereed > Refereed conference paper201804_a bcmaAccepted ManuscriptPublishe

Classification of Auxiliary Circuit Schemes for Feeding Fast Load Transients in Switching Power Supplies

published_or_final_versio

A constraint-aware heuristic path planner for finding energy-efficient paths on uneven terrains

2014-2015 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Multiobjective path planning on uneven terrains based on NAMOA*

2015-2016 > Academic research: refereed > Refereed conference paperAccepted ManuscriptPublishe

A Constant-Power Battery Charger with Inherent Soft Switching and Power Factor Correction

A battery charging circuit, which operates as a constant power source, is proposed in this paper. By maintaining a constant output power throughout the charging process, the circuit reduces the size of thermal installation which would normally be required in the cases of constant-voltage or constant-current charging. The proposed circuit takes the form of a half-bridge converter with an additional small inductor and two extra diodes connected in parallel to two dividing capacitors. Constant power delivery is achieved by the discontinuous-voltage-mode operation of the two dividing capacitors, each of which is connected in parallel with a diode. The circuit enjoys low voltage and current stresses, and achieves soft switching with no extra components. When used off-line, the converter maintains a high input power factor and a low level of input current harmonic distortion that meets international regulations. All the above characteristics are determined only by the values of the circuit parameters, the control mechanism being noncritical. A 12 V 65 W prototype was built to demonstrate the merits of this circuit.published_or_final_versio

A Survey, Classification and Critical Review of Light-Emitting Diode Drivers

Based on a survey on over 1400 commercial LED drivers and a literature review, a range of LED driver topologies are classified according to their applications, power ratings, performance and their energy storage and regulatory requirements. Both passive and active LED drivers are included in the review and their advantages and disadvantages are discussed. This paper also presents an overall view on the technical and cost aspects of the LED technology, which is useful to both researchers and engineers in the lighting industry. Some general guidelines for selecting driver topologies are included to aid design engineers to make appropriate choices.published_or_final_versio

Effects of correlation-based VM allocation criteria to cloud data centers

2016-2017 > Academic research: refereed > Refereed conference paper201804_a bcmapreprint_postprin

Rapid replanning of energy-efficient paths for navigation on uneven terrains

2015-2016 > Academic research: refereed > Refereed conference paperAccepted ManuscriptPublishe