Iterative Behavioral Modeling of Charge-Pump Based Electronic Ballast-Fluorescent lamp System

A new behavioral model for analyzing the charge- pump based ballast is proposed in this paper. A detailed model derivation is presented and the model is applied to analyze a ballast system of a 16 W compact fluorescent lamp (CFL) as an illustration. The ballast of the CFL consists of a self-oscillatory driven inverter stage and a charge-pump circuitry. It is shown that the model can give a comprehensive interpretation of the whole system and provide a reasonable prediction of the ballast behavior.