This reference design is a transition-mode, boost power factor correction (PFC) and half bridge LLC that accepts universal AC input and generates an isolated 24V, 10A output. The design utilizes LMG3622 GaN module on the primary side with integrated driver and current sense emulation for improved efficiency. This design achieves a full load efficiency of 93.62% at 90Vac input.
Features
- Integrated current sense emulation in PFC stage (no shunt resistor required)
- Peak efficiency of 95.96%
- Full load efficiency of 93.62% at 90Vac input