System description

AN3973

4/24

Doc ID 022164 Rev 1

1

System description

Figure 1.

Ballast model

The system description is subdivided into two main sections, namely the PFC boost section

and half bridge converter. The system description starts with the PFC section and then

continues with the DC-AC converter. In the PFC section the method and the electrical

elements concerning the optimization of PFC and THD parameters are pointed out. In the

DC-AC converter section, the focus is the optimization of transistor bipolar driving.