Non-Isolated, 8 Watt Dual Output, Off-line Power Supply

Reference Design using part NCP1075STAT3G by onsemi


  • Application Category
    Power Supplies
  • Product Type
    AC to DC Multi-Output Power Supplies

For End Products

  • Industrial
  • White Goods


  • Reference Design features an 8 watt, off-line, dual output, flyback power supply intended for powering white goods or industrial equipment circuitry which does not require output isolation from the AC mains. The flyback converter is designed around ON Semiconductors 100 kHz NCP1075 monolithic switching controller. This particular design example provides output voltages of 5V and 8.5V but these can be tailored to other voltages to accommodate the specific requirements by appropriate transformer turns ratio changes

Key Features

  • Conversion Type
    AC to DC
  • Input Voltage
    180 to 270 (AC) V
  • Output Voltage
    5|8.5 V
  • Output Current
    1.25@5V|0.3@8.5V A
  • Output Power
    8 W
  • Efficiency
    76 %
  • Topology

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