CUED Publications database

Losses in self-oscillating ballasts for electrode-type compact fluorescent lamps

Shafi, MA and McMahon, RA and Weier, S (2011) Losses in self-oscillating ballasts for electrode-type compact fluorescent lamps. IET Power Electronics, 4. pp. 516-522. ISSN 1755-4535

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Commercially available integrated compact fluorescent lamps (CFLs) use self-resonant ballasts on grounds of simplicity and cost. To understand how to improve ballast efficiency, it is necessary to quantify the losses. The losses occurring in these ballasts have been directly measured using a precision mini-calorimeter. In addition, a Pspice model has been used to simulate the performance of an 18 W integrated CFL. The lamp has been represented by a behavioural model and Jiles-Atherton equations were used to model the current transformer core. The total loss is in close agreement with measurements from the mini-calorimeter, confirming the accuracy of the model. The total loss was then disaggregated into component losses by simulation, showing that the output inductor is the primary source of loss, followed by the inverter switches. © 2011 The Institution of Engineering and Technology.

Item Type: Article
Depositing User: Unnamed user with email
Date Deposited: 16 Jul 2015 13:51
Last Modified: 06 Oct 2015 21:31
DOI: 10.1049/iet-pel.2009.0005