Title :
A novel low cost two-stage electronic ballast for 250 W high pressure mercury vapor lamps based on current-mode-controlled buck-boost inverter
Author :
Corominas, E.L. ; Rico-Secades, M. ; Fernández-Rubiera, J.A. ; Alonso, J.M. ; Calleja, A.J. ; Ribas, J. ; Cardesin, J.
Author_Institution :
Dept. de Ingenieria Electr. y Electron., Oviedo Univ., Spain
Abstract :
In this paper, a low-cost electronic ballast for high-pressure mercury vapor (HPMV) lamps is presented. The proposed ballast is a two-stage circuit that requires only one switch and one inductor for each stage. The power factor correction (PFC) stage is a buck DC-to-DC converter operating in discontinuous conduction mode (DCM) to meet with the IEC-1000-3-2 Class C requirements. The inverter stage is a very low cost nonresonant topology, based on a buck-boost inverter controlled by means of a specific current mode control implementation. This control implementation provides an intrinsic short circuit protection and a very simple control circuitry. Also the protection against broken lamp can be easily implemented with the proposed circuitry
Keywords :
DC-AC power convertors; DC-DC power convertors; invertors; lamp accessories; mercury vapour lamps; power factor correction; 250 W; IEC-1000-3-2 Class C requirements; buck DC-to-DC converter; current-mode-controlled buck-boost inverter; discontinuous conduction mode; high-pressure mercury vapor lamps; intrinsic short circuit protection; low-cost two-stage electronic ballast; nonresonant invertor topology; power factor correction; specific current mode control implementation; Costs; DC-DC power converters; Electronic ballasts; Inductors; Inverters; Lamps; Power factor correction; Protection; Switches; Switching circuits;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2001. APEC 2001. Sixteenth Annual IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-6618-2
DOI :
10.1109/APEC.2001.912442
