پديدآورندگان :
Shirinzad Mahsa shirinzad_9@yahoo.com B.S. Student Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran , Soleimani Saeed s.soleimani1993@gmail.com B.S. Student Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan Iran, 84156-83111 , Adib Ehsan e.adib@cc.iut.ac.ir Associate Professor Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
چكيده فارسي :
This paper presents a single switch soft switched buckboost resonant converter for LED drive applications. Zero current switching condition results in high efficiency. The proposed circuit provides a constant average output current independent of output voltage which makes it suitable for LED drive applications. The average output current is independent of output voltage and is a function of switching frequency, resonance capacitor and input voltage. Thus in a specific output current the circuit works with a constant frequency and duty cycle, which makes the control circuit very simple. The circuit is suitable for cost sensitive applications due to minimized number of components. Boosting capability makes this converter proper to be connected to photovoltaic cells as the input power source. Simulation results for a 12V/60V converter are presented
