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Power Supply Controls

Power Supply Controls

Fuji Electric offers a range of AC/DC and DC/DC power supply control ICs that support a variety of circuits.

These high-efficiency, low-noise products with low standby power consumption are compatible with various environmental regulations. In addition, many protection functions are integrated into the ICs themselves, enabling the implementation of smaller circuits.


  • Built-in discharge function for X-Capacitor
  • Reduce of switching frequency at middle load
  • Various protective functions (overvoltage, overload, etc.)


  • Reduction of stand-by losses and higher efficiency.
  • Built-in features enable to realize a reduced space and a high cost-performance power supply.
  • Various protection to achieve higher robustness.

Series list

  • High-side and Low-side Driver ICs

High-speed switching is possible for FET of various ratings through the use of the 3.3 V logic input. Furthermore, the increasing of the negative voltage withstand capability secures higher reliability than other companies.

  • AC/DC Control ICs

Fuji Electric`s have developed a lineup of products for a wide variety of fields, for applications ranging from small and medium power capacity PC adapters and LCD TV power supplies, to large power capacity servers and industrial power supplies.

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