电子镇流器：基极驱动优化

电流反馈半桥镇流器电路的晶体管的基极驱动
FACT SHEET 046


An electronic ballast:
base drive optimisation
Introduction Base drive optimisation
This Factsheet investigates the transistor base drive The transformer’s auxiliary windings which provide base
circuit in a current fed half bridge ballast. Figure 1 drive might contain just one or two turns each. In order
shows the simplified circuit. The effect on switching to provide rapid transistor turn-off, their peak loaded
waveforms of progressing from a simple base drive output voltage would need to be such that the transistor
circuit to the optimised solution will be shown. ’sees’ a turn-off voltage of aro