300W, AC to DC Single Output Power Supply for Industrial

Reference Design using part NCP1605 by onsemi


  • Application Category
    Power Supplies
  • Product Type
    AC to DC Single Output Power Supplies

For End Products

  • Desktop PC
  • Flat Panel Display
  • Industrial
  • Power Supplies


  • A NCP1605 High Efficiency, 300W Bridgeless PFC Stage. The controller is supplied by a 15V dc external power source (Vaux). The NCP1605 latch-off pin is used to disable the circuit if VCC exceeds 17.5V (level controlled by components D7, R32, R33)

Key Features

  • Conversion Type
    AC to DC
  • Input Voltage
    90 to 265 (AC) V
  • Output Power
    300 W
  • Efficiency
    98.5 %
  • Topology
    Boost- PFC

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