Title :
Control strategy of a novel two-stage acoustic resonance free electronic ballast for HID lamps
Author :
Shen, Miaosen ; Qian, Zhaoming ; Peng, Fang Z.
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
The paper presents a novel two-stage acoustic resonance free electronic ballast for high intensity discharge (HID) lamps. The ballast consists of a PFC stage to achieve power factor correction and a four quadrants DC/DC converter to supply the lamp with low frequency square wave current. Due to the negative impedance characteristic of the HID lamps, the inverter must be controlled to perform as a current source. The control strategy is described in detail in the paper. The circuit is also verified experimentally.
Keywords :
DC-DC power convertors; discharge lamps; electric impedance; lamp accessories; power factor correction; 250 W; HID lamps; PFC stage; current source; four quadrants DC/DC converter; high intensity discharge lamps; inverter control; low frequency square wave current; negative impedance characteristic; power factor correction; two-stage acoustic resonance free electronic ballast; Acoustic waves; Circuits; Electronic ballasts; Fluctuations; Frequency conversion; High intensity discharge lamps; Inverters; Power factor correction; Resonance; Resonant frequency;
Conference_Titel :
Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual
Print_ISBN :
0-7803-7262-X
DOI :
10.1109/PSEC.2002.1023871
