Research Article
Efficiency Comparison of Different DC-DC Converter Architectures for a Power Supply of a LiDAR System
@INPROCEEDINGS{10.1007/978-3-030-73585-2_7, author={Ruben E. Figueiredo and Vitor Monteiro and Jose A. Afonso and J. G. Pinto and Jose A. Salgado and Luiz A. Lisboa Cardoso and Miguel Nogueira and Aderito Abreu and Joao L. Afonso}, title={Efficiency Comparison of Different DC-DC Converter Architectures for a Power Supply of a LiDAR System}, proceedings={Sustainable Energy for Smart Cities. Second EAI International Conference, SESC 2020, Viana do Castelo, Portugal, December 4, 2020, Proceedings}, proceedings_a={SESC}, year={2021}, month={4}, keywords={LiDAR DC-DC converters Efficiency comparison Synchronous buck Switched mode power supply}, doi={10.1007/978-3-030-73585-2_7} }- Ruben E. Figueiredo
Vitor Monteiro
Jose A. Afonso
J. G. Pinto
Jose A. Salgado
Luiz A. Lisboa Cardoso
Miguel Nogueira
Aderito Abreu
Joao L. Afonso
Year: 2021
Efficiency Comparison of Different DC-DC Converter Architectures for a Power Supply of a LiDAR System
SESC
Springer
DOI: 10.1007/978-3-030-73585-2_7
Abstract
LiDAR (Light Detection And Ranging) is a technology used to measure distances to objects. Internally, a LiDAR system is constituted by several components, including a power supply, which is responsible to provide the distinct voltage levels necessary for all the components. In this context, this paper presents an efficiency comparison of three different DC-DC converter architectures for a LiDAR system, each one composed of three DC-DC converters: in parallel; in cascade; and hybrid (mix of parallel and cascade). The topology of the adopted integrated DC-DC converters is the synchronous buck Switched-Mode Power Supply (SMPS), which is a modified version of the basic buck SMPS topology. Three distinct SMPSs were considered: LM5146-Q1, LM5116, and TPS548A20RVER. These SMPSs were selected according to the requirements of voltage levels, namely, 12 V, 5 V, and 3.3 V. Along the paper, the principle of operation of the SMPSs is presented, as well as the evaluation results obtained for different operating powers, allowing to establish a comprehensive efficiency comparison.
