Uninterruptible Power Supplies (UPS) 

 

In an increasingly connected and technology-driven world, uninterrupted power supplies (UPS) have become indispensable for safeguarding critical operations. They are designed to bridge the gap between a power outage and the activation of a backup generator or the restoration of mainline electricity. During normal operation, the system converts incoming AC power to DC to charge a high-capacity battery. When input power is disrupted, the battery engages an inverter to deliver regulated AC power to connected devices.

In addition to serving as a backup power source, many UPS provide power conditioning, addressing issues such as voltage transients, sags, and surges without depleting the battery. This ensures that connected devices consistently receive clean, stable power.

Key Applications for UPS Systems

The versatility of UPS systems makes them vital across a wide range of industries. Key applications include:

  • Data Centers: Protecting servers and ensuring seamless operation of IT infrastructure during outages.
  • Healthcare: Powering critical medical equipment, such as ventilators and monitoring systems, to safeguard patient care.
  • Manufacturing: Minimizing disruptions to production lines and preserving sensitive automation systems.
  • Telecommunications: Maintaining connectivity for essential communication networks.
  • Residential Use: Offering peace of mind for home offices, small businesses, and personal electronics.

Essential Components in UPS Design Components

Key components of Uninterruptible Power Supplies include:

  • AC Input Filters: Ferrite, nanocrystalline, and amorphous cores are often used in input filters to remove high-frequency noise from the incoming power supply to ensure clean input energy. 
  • Power Factor Correction Circuits: Improve efficiency by minimizing harmonic distortion and maintaining near-unity power factor. Ferrite, nanocrystalline, and amorphous cores are often used in PFC inductors to improve efficiency and maintain a stable input current waveform. 
  • DC/DC Converters: Regulate voltage for battery charging and power delivery. Powder cores are the best choice for UPS DC/DC converters as they offer soft saturation and stable inductance over varying current loads. 
  • Inverter Output Filters: Powder cores are often used in output filters to smooth the AC power delivered to sensitive devices, ensuring stability and reliability.

Magnetics ferrite cores are primarily used for high-frequency transformers and EMI suppression, while Magnetics powder cores are preferred for energy storage inductors and DC chokes due to their superior handling of high current without saturation. The combination of both ensures a high-efficiency, low-noise, and reliable UPS design.

Contact Magnetics regarding our solutions for UPS applications.