Single phase and high voltage factor electronic ballast based on a reducer converter and resonant inverter

摘要

Single phase and high voltage factor electronic ballast based on a reducer converter and resonant inverter that allows the power supply to the lamp from the electric network in compliance with the standard in effect regarding the injection of harmonics. The circuit is obtained by the integration in a single phase of a reducer converter and a middle jumper inverter, requiring a single control circuit. It allows power supplying the lamp with high frequency and low peak factor alternating current; it is intrinsically protected against the operation without a lamp, without the need for an additional protection circuit and provides a low voltage stress to the switches. The system has a lower cost, less volume and less weight, and greater performance than existing circuits. Applicable to the industry of lighting with high and/or low-pressure discharge.lamps.