UCC28950 Phase-Shifted Full-Bridge Controller The Texas Instruments UCC28950 enhanced phase-shifted full-bridge controller offers best-in-class efficiency in today's high performance power systems. The TI UCC28950 phase-shifted full-bridge controller implements advanced control of the full-bridge along with active control of the synchronous rectifier output stage. The TI UCC28950 features enhanced wide range resonant zero voltage switching (ZVS) capability along with direct synchronous rectifier (SR) control and light-load efficiency management.