Title :
A low cost electronic ballast for 250 W high pressure sodium vapour lamps using the CC/CC buck converter as power factor preregulator [CC/CC read DC/DC]
Author :
Cardesín, J. ; Ribas, J. ; Rico, M. ; Alonso, J.M. ; Calleja, A. ; Corominas, E. ; García, J.
Author_Institution :
Dpto. de Ingenieria Electrica y Electronica, Univ. de Oviedo, Gijon, Spain
Abstract :
In this paper, a low cost electronic ballast with power factor correction for 250 W high pressure sodium vapour lamps is presented. The electronic ballast is based on a two-stage scheme. The first stage realises the power factor correction by using a CC/CC buck converter operating in discontinuous conduction mode (DCM) and constant duty cycle meeting the standard IEC 1000 3-2 with a very low cost circuit. The second stage is based on a resonant full-bridge LCC series-parallel inverter with resonant current mode control and optimum commutations. This current mode control minimises the losses in the switches and the return of power to the input power supply.
Keywords :
DC-DC power convertors; bridge circuits; commutation; electric current control; invertors; lamp accessories; losses; metal vapour lamps; power factor correction; sodium; 250 W; DC/DC buck converter; constant duty cycle; current mode control; discontinuous conduction mode; high pressure sodium vapour lamps; input power supply; losses minimisation; low cost electronic ballast; optimum commutations; power factor preregulator; resonant current mode control; resonant full-bridge LCC series-parallel inverter; standard IEC 1000 3-2; very low cost circuit; Buck converters; Circuits; Costs; Electronic ballasts; IEC standards; Inverters; Lamps; Power factor correction; Reactive power; Resonance;
Conference_Titel :
Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the
Conference_Location :
Pittsburgh, PA, USA
Print_ISBN :
0-7803-7420-7
DOI :
10.1109/IAS.2002.1043784
