Product Description

The ballast is made of four parts. First is an EMI filter to reduce harmonics from the AC input. Next is a bridge rectifier; this converts AC to DC power. After that is the PFC circuit which boosts the DC voltage to a constant 400 V value and increases the power factor to 0.95+. The final part of the ballast is an inverter which converts the DC power to high frequency AC.

The MOSFETs used in the H-bridge are of high frequency / low loss type and transfer RF energy to the lamp via a Ferrite transformer. This transformer, with its unique construction, offers total shielding against RF radiation - while maintaining high efficiency and in a small form-factor. Any heat generated while handling high RF power is transferred to the aluminum case efficiently via proprietary features.