Design and modeling of high performance LED dimming driver with reduced current spikes using turn-on snubber across power MOSFET

Borra, Venkata

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dc.contributor.author	Borra, Venkata	en_US
dc.date.accessioned	2014-10-27T15:12:34Z
dc.date.accessioned	2019-09-08T02:51:19Z
dc.date.available	2014-10-27T15:12:34Z
dc.date.available	2019-09-08T02:51:19Z
dc.date.issued	2014
dc.identifier	892917952	en_US
dc.identifier.other	b21475684	en_US
dc.identifier.uri	http://hdl.handle.net/1989/11393
dc.description	x, 66 leaves : illustrations ; 29 cm.	en_US
dc.description.abstract	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.	en_US
dc.description.statementofresponsibility	by Venkata Shesha Vamsi Borra.	en_US
dc.language.iso	en_US	en_US
dc.relation.ispartofseries	Master's Theses no. 1448	en_US
dc.subject.lcsh	Light emitting diodes.	en_US
dc.subject.lcsh	Metal oxide semiconductor field-effect transistors.	en_US
dc.subject.lcsh	Pulse-duration modulation.	en_US
dc.subject.lcsh	Electric lighting--Control.	en_US
dc.title	Design and modeling of high performance LED dimming driver with reduced current spikes using turn-on snubber across power MOSFET	en_US
dc.type	Thesis	en_US

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