A 4 to 40V Wide Input Range and Energy Re-Cycling High Power LiDAR Driver for 5% Efficiency Enhancement and 300m Long-distance Object Detection

Si Yi Li, Zheng Lun Huang, Sheng Cheng Lee, Ke Horng Chen, Kuo Lin Zheng, Ying Hsi Lin, Shian Ru Lin, Tsung Yen Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

In automotive applications, the battery voltage may drop to a low voltage of 4V when a sudden power-on occurs, and immediately rise to a high voltage of 40V during a loading pump. Thus, the paper presents a 4 to 40V wide input range high power LiDAR driver based on an enhancement Gallium Nitride (eGaN) switch. In addition, in the case of high di/dt, the proposed protection re-cycling (PRC) technique is used to re-direct the charge at the gate of the eGaN switch to a storage capacitor, which not only protects the GaN switch but also improves the efficiency by 5%. Experimental results show that the resultant long-distance object detection can be up to 300 meters.

Original languageEnglish
Title of host publicationESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages293-296
Number of pages4
ISBN (Electronic)9781665484947
DOIs
StatePublished - 2022
Event48th IEEE European Solid State Circuits Conference, ESSCIRC 2022 - Milan, Italy
Duration: 19 Sep 202222 Sep 2022

Publication series

NameESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings

Conference

Conference48th IEEE European Solid State Circuits Conference, ESSCIRC 2022
Country/TerritoryItaly
CityMilan
Period19/09/2222/09/22

Keywords

  • Enhancement Gallium Nitride (eGaN)
  • high di/dt
  • protection re-cycling (PRC) technique

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