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Design and Modeling of High Performance LED Dimming Driver with Reduced Current Spikes using Turn-On Snubber across Power MOSFET

Borra, Venkata Shesha Vamsi
http://rave.ohiolink.edu/etdc/view?acc_num=ysu1402958388

Abstract Details

2014, Master of Science in Engineering, Youngstown State University, Department of Electrical and Computer Engineering.
The LEVEL-3 power MOSFET SPICE model (IRF034) is used to design and model the LED driver. Three LED drivers are designed and their efficiency values are compared for picking the optimum driver among them. The switching frequency of 20 kHz to 40 kHz to the MOSFET indeed produce sharp current spikes across the MOSFET which are at least 30-40 times more than the desired value around 2A. To resolve this problem an efficient turn-on Snubber circuit is designed for the driver for safe operation. The efficiency of the LED driver is enhanced by modeling the LED's PSpice model and reconfiguring the circuit elements. The simulation results of the designed driver propose an efficiency value of 92.2%. The efficiency is calculated to be 88% when the designed model is replaced by a commercial LED model.
Frank X. Li, PhD (Advisor)
Faramarz Mossayebi, PhD (Committee Member)
Jalal Jalali, PhD (Committee Member)
76 p.
Electrical Engineering
Dimming; Pulse Width Modulation; LED Driver; Modeling; PSpice; MOSFET; Snubber circuit; efficiency

Recommended Citations

Citations

  • Borra, V. S. V. (2014). Design and Modeling of High Performance LED Dimming Driver with Reduced Current Spikes using Turn-On Snubber across Power MOSFET [Master's thesis, Youngstown State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1402958388

    APA Style (7th edition)

  • Borra, Venkata Shesha Vamsi. Design and Modeling of High Performance LED Dimming Driver with Reduced Current Spikes using Turn-On Snubber across Power MOSFET. 2014. Youngstown State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ysu1402958388.

    MLA Style (8th edition)

  • Borra, Venkata Shesha Vamsi. "Design and Modeling of High Performance LED Dimming Driver with Reduced Current Spikes using Turn-On Snubber across Power MOSFET." Master's thesis, Youngstown State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1402958388

    Chicago Manual of Style (17th edition)

ysu1402958388
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© 2014, all rights reserved.
This open access ETD is published by Youngstown State University and OhioLINK.