Title :
Design of resonant inverters for optimal efficiency over lamp life in electronic ballast with phase control
Author :
Azcondo, Francisco J. ; Zane, Regan ; Branas, Christian
Author_Institution :
Syst. & Autom. Eng. Dept., Cantabria Univ., Santander
Abstract :
The paper presents the design guidelines of phase controlled resonant inverters to drive HID lamps. Considering the variation of the lamp resistance over its lifetime, the resonant phase is determined and the condition of minimum phase lag is imposed to minimize the current through the circuit. The optimum input voltage is analyzed in relation to phase lag, frequency variation and control complexity
Keywords :
discharge lamps; electric resistance; frequency control; lamp accessories; phase control; resonant invertors; HID lamps; electronic ballast; frequency control; frequency variation; high-intensity discharge; lamp resistance; optimal efficiency; phase control; phase controlled resonant inverters; phase lag; Electronic ballasts; High intensity discharge lamps; Impedance; Phase control; Resonance; Resonant frequency; Resonant inverters; Steady-state; Switching frequency; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2005. APEC 2005. Twentieth Annual IEEE
Conference_Location :
Austin, TX
Print_ISBN :
0-7803-8975-1
DOI :
10.1109/APEC.2005.1453124
