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A Universal Electronic Ballast Design Using A PSpice Model For T5 Fluorescent Lamp

Posted on:2008-11-20Degree:MasterType:Thesis
Country:ChinaCandidate:B JiangFull Text:PDF
GTID:2132360212476936Subject:IC design and manufacturing
Abstract/Summary:PDF Full Text Request
With global energy shortage, more and more lighting electronic products are required to have better energy-saving features. Since T5 fluorescent lamps are new generation products and have better energy-saving features, they are widely applied to illumination fixture designs currently. As T5 fluorescent lamps still belong to Gas Discharge Lamp, it is impossible for them to work normally without the electronic ballasts. However, the current situation is that when the ballast design engineers utilize the simulation tool PSpice to do the circuit design, there are no similar fluorescent lamp devices available in the PSpice library. As a result, what the ballast design engineers can do is to replace the fluorescent lamps with a single resistor or other similar devices to do the circuit simulation, which caused significant difference from the actual experimental results. This situation impact the product design seriously. As a result, the simulation model construction for T5 fluorescent becomes extremely urgent to design engineers.Based on the working principle and electrical characteristics of the T5 fluorescent lamps, this thesis has investigated modeling, verification and application of the dynamic features of the T5 fluorescent lamps. The detailed research includes the following steps: Firstly, the V-I characteristics by electronic reference ballast are measured, then the curve fitting technique is used to find mathematical functions that model the measured data. Secondly, the fitting function is carried out by using controlled devices in PSpice, then the PSpice fluorescent lamp model is constructed accordingly. After that, the PSpice model is verified by comparing the actual experimental data to the simulation data, results are shown to agree closely with each other. Thirdly, based on this PSpice model, a universal electronic ballast compatible with T5 14/21/28/35W lamps is introduced. With the established...
Keywords/Search Tags:T5, Fluorescent, PSpice, Simulation, Model, Verification, Universal, Electronic Ballast
PDF Full Text Request
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