Title :
A single-stage high power factor LED driver in continuous conduction mode
Author :
Mohamadi, A. ; Afjei, E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Shahid Beheshti Univ., Tehran, Iran
Abstract :
A single stage LED driver for street-lighting application with power-factor-correction is proposed in this paper. The presented driver is the integration of PFC boost which operates in continuous conduction mode (CCM) and push-pull dc-dc converter. Both the active switches can turn on with ZVS, which results in lower switching losses. Asymmetrical pulse-width-modulation control scheme is used to control the converter under constant switching frequency operation. The proposed single-stage converter has the features of cost-effectiveness, simple structure, high power factor, low input current ripples and minimum component count.
Keywords :
DC-DC power convertors; driver circuits; light emitting diodes; power factor correction; street lighting; zero voltage switching; CCM; ZVS; active switches; asymmetrical pulse width modulation control; constant switching frequency operation; continuous conduction mode; current ripples; high power factor LED driver; power factor correction boost; push-pull dc-dc converter; single stage LED driver; street lighting; switching loss; zero voltage switching; Control systems; Inductors; Light emitting diodes; Reactive power; Switching circuits; Asymmetrical PWM control; CCM boost PFC; LED driver; push-pull converter; single-stage; zero-voltage switching (ZVS);
Conference_Titel :
Power Electronics, Drives Systems & Technologies Conference (PEDSTC), 2015 6th
Conference_Location :
Tehran
Print_ISBN :
978-1-4799-7652-2
DOI :
10.1109/PEDSTC.2015.7093319
