400W And 500W Supplies Possess Active PFC Circuitry

Models SX400 400W and SX500 500W compact single-output power supplies feature active input power factor correction (PFC) circuits, comply with EN610000-3-2, and accommodate inputs of 90 to 264 vac or 120 to 370 vdc. The PFC input stage is followed by a two-transistor forward converter that provides a proven architecture for high-reliability requirements. Supplies offer EMI compliance to FCC/VDE Class B and carry safety approvals from UL, CSA and TUV and the CE Mark. Outputs are 24, 28, 36 or 48 vdc.