Two important subjects in high frequency fluorescent lighting are investigated.Part I. presents a fundamental understanding of the negative incremental impedance of flourescent lamps.

• 本文提出一车用氙灯双灯管电子式安定器之架构，其前级为双组返驰式转换器，提供点灯暂态至稳态之灯管功率，并于稳态时采用定功率控制；