Title :
Electronic Ballast with Unity-Power-Factor Based on Current Injection technique
Author :
Borghate, Vijay B. ; Suryawanshi, H.M. ; Ramteke, M.R. ; Renge, M.M.
Author_Institution :
Dept. of Electr. Eng., Visvesvaraya Nat. Inst. of Technol., Nagpur
Abstract :
A new combination of power-factor-correction (PFC) and filter components in single-stage electronic ballast is presented in this paper. A symmetrical half-bridge inverter is used to drive the fluorescent lamp. The proposed topology is based on the high frequency current injection technique. The PFC components inject the current at switching frequency into the DC-bus capacitors and keeps the DC-bus voltage above the AC input peak voltage to achieve the ripple-free input current at unity-power-factor and high efficiency over the wide range of input line voltage. The principle of operation and analysis of the proposed electronic ballast is explained, and the experimental results of the laboratory prototype ballast for 2times36 W lamps operating at 50 kHz and 230 V, 50 Hz mains is also presented further
Keywords :
bridge circuits; fluorescent lamps; invertors; lamp accessories; power capacitors; power factor correction; power filters; switching convertors; 230 V; 50 Hz; 50 kHz; DC-bus capacitors; PFC; current injection technique; electronic ballast; filter components; fluorescent lamps; power-factor-correction; switching frequency; symmetrical half-bridge inverter; unity-power-factor; Capacitors; Circuit topology; Electronic ballasts; Filters; Fluorescent lamps; Inverters; Laboratories; Prototypes; Switching frequency; Voltage; Zero-voltage-switching; coupling-inductor; power-factor-correction; unity-power-factor;
Conference_Titel :
Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE
Conference_Location :
Jeju
Print_ISBN :
0-7803-9716-9
DOI :
10.1109/PESC.2006.1712276