Small-signal model of LLC LED driver

Ray Lee Lin, Yen Chih Wang, Po Nien Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents the small-signal model of the full-bridge LLC LED driver for system analysis. By using the Taylor series model, a V-I curve lookup table is generated to model the LED. The LED array can be built by a simple equivalent circuit composed of one LED model and two dependence sources for circuit simulation. The frequency modulated signal caused by small-signal perturbation can be demodulated by the LLC resonant tank and the full-wave rectifier to the load. Therefore, the control-to-output transfer function can be derived. A simulation circuit of 576W full-bridge LLC LED driver is built to validate the derived small-signal model.

Original languageEnglish
Title of host publication2018 IEEE Industry Applications Society Annual Meeting, IAS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538645369
DOIs
Publication statusPublished - 2018 Nov 26
Event2018 IEEE Industry Applications Society Annual Meeting, IAS 2018 - Portland, United States
Duration: 2018 Sep 232018 Sep 27

Publication series

Name2018 IEEE Industry Applications Society Annual Meeting, IAS 2018

Other

Other2018 IEEE Industry Applications Society Annual Meeting, IAS 2018
CountryUnited States
CityPortland
Period18-09-2318-09-27

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

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  • Cite this

    Lin, R. L., Wang, Y. C., & Huang, P. N. (2018). Small-signal model of LLC LED driver. In 2018 IEEE Industry Applications Society Annual Meeting, IAS 2018 [8544474] (2018 IEEE Industry Applications Society Annual Meeting, IAS 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IAS.2018.8544474