A Low Power Single-stage LED Driver Operating between Discontinuous Conduction Mode and Critical Conduction Mode

Faris Al-Naemi,Jianbo Yang,Weiping Zhang

doi:10.1016/j.egypro.2015.07.817

A Low Power Single-stage LED Driver Operating between Discontinuous Conduction Mode and Critical Conduction Mode

Faris Al-Naemi, Jianbo Yang + Show 1 more

Open Access

https://doi.org/10.1016/j.egypro.2015.07.817

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Journal: Energy Procedia	Publication Date: Aug 1, 2015
Citations: 2	License type: cc-by-nc-nd

Affiliation: Sheffield Hallam University, North China University of Technology

#Critical Conduction Mode #Discontinuous Conduction Mode + Show 8 more

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Abstract

A novel single-stage single-switch (S4) LED driver is proposed in this paper. The paper focuses on the operation principles of the power stage circuit with an operation switched between Critical Conduction Mode (CRM) and Discontinuous Conduction Mode (DCM), including steady state analysis, simulation and backed up by experimental results. The results verify that this proposed LED driver can obtain a high power factor (PF) and the dc output is relatively stable.

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