Offline UPS - high frequency transformer

Bridge the power-supply gap in your small offices or home offices with Infineon offline UPS solutions for high frequency 50-60 kHz transformers

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Overview

Looking to provide reliable and constant power but also increase energy efficiency and reduce costs over time? Check out Infineon's offerings for offline UPS for high frequency transformers and deliver systems that safeguard critical equipment with our compact, high-quality solutions. Explore our range for offline UPS and provide uninterrupted power and peace of mind to your end users.

Benefits

  • Advanced power protection
  • Compact and lightweight
  • Seamless power transfer
  • Noise reduction
  • Reliable performance
  • Energy efficiency

Block diagram

About offline UPS for high frequency transformers

Offline, also known as standby, UPS is mainly used for small offices and home offices, also called SOHO, due to their low cost. They are power protection devices that provide backup power during electrical outages but also offer basic power protection features such as surge protection and voltage regulation. Offline UPS systems usually operate between 0 kVA and 10 kVA. They mainly use discrete power semiconductor solutions and are usually divided into low-frequency and high-frequency transformer-based systems. In these systems, the AC line voltage is present, and a relay bypasses the inverter, which remains off. The battery charger operates to maintain full charge, but if the AC power fails then relay switches the UPS output over to the inverter, which starts up after a short interruption of 10-20 ms to supply backup power. Due to this short interruption, offline UPS are only viable in systems where this is acceptable, such as home offices or small offices. 

While they may not offer advanced power conditioning features, offline UPS units provide essential backup power to protect valuable electronics from power disruptions and voltage fluctuations.

Infineon portfolio for offline UPS for high frequency transformers

Infineon's portfolio of semiconductor solutions for high frequency offline UPS transformers is designed for use with 20-50 kHz switching, and with ferrite core transformers that use either internal, sealed, lead-acid or lithium-ion batteries at 12-24 V. These transformers are usually small and light and can be mounted directly on the PCB.

Our solutions utilize sine wave output voltages and are designed using a two-stage topology: a push-pull DC-DC + full-bridge AC-AC with a separate flyback converter for battery charging. These are suitable for good power quality AC power grids only. To dive deeper into our offering, the AC-DC and DC-DC gate driver ICs that make up part of our solution offer diverse benefits, such as over-current detection, UVLO, and a programmable fault clear time, helping you keep things safe and secure. Another example is the CoolMOS™ P7 N-channel SJ MOSFET used in the flyback topology AC-DC unidirectional charger. This MOSFET brings benefits such as being easy to drive and to be run in parallel, enabling higher power density designs, ESD protection, and BOM savings.

Discover these benefits and many more by visiting the block diagram on this page.

Trends in offline UPS

Offline uninterruptible power supplies (UPS) have witnessed several trends in recent years. Energy efficiency, for example, has become a key focus, with manufacturers developing more efficient models to meet regulatory standards and reduce operating costs. Advanced battery technologies, such as lithium-ion, are being integrated to enhance UPS performance and reliability. Power management features, like load shedding and intelligent monitoring, are being incorporated to optimize power usage. The trend towards smaller form factors addresses the need for space-efficient solutions in home offices and small businesses. Increased connectivity options and monitoring capabilities enable remote management and diagnostics. Furthermore, power protection features are being enhanced, including surge protection and improved voltage regulation.

These trends reflect the growing demand for efficient, compact, feature-rich offline UPS systems that provide reliable power backup, reduce energy consumption, and offer advanced management and protection features. Manufacturers are leveraging technological advancements to meet these demands and provide UPS solutions that align with evolving user needs.

About offline UPS for high frequency transformers

Offline, also known as standby, UPS is mainly used for small offices and home offices, also called SOHO, due to their low cost. They are power protection devices that provide backup power during electrical outages but also offer basic power protection features such as surge protection and voltage regulation. Offline UPS systems usually operate between 0 kVA and 10 kVA. They mainly use discrete power semiconductor solutions and are usually divided into low-frequency and high-frequency transformer-based systems. In these systems, the AC line voltage is present, and a relay bypasses the inverter, which remains off. The battery charger operates to maintain full charge, but if the AC power fails then relay switches the UPS output over to the inverter, which starts up after a short interruption of 10-20 ms to supply backup power. Due to this short interruption, offline UPS are only viable in systems where this is acceptable, such as home offices or small offices. 

While they may not offer advanced power conditioning features, offline UPS units provide essential backup power to protect valuable electronics from power disruptions and voltage fluctuations.

Infineon portfolio for offline UPS for high frequency transformers

Infineon's portfolio of semiconductor solutions for high frequency offline UPS transformers is designed for use with 20-50 kHz switching, and with ferrite core transformers that use either internal, sealed, lead-acid or lithium-ion batteries at 12-24 V. These transformers are usually small and light and can be mounted directly on the PCB.

Our solutions utilize sine wave output voltages and are designed using a two-stage topology: a push-pull DC-DC + full-bridge AC-AC with a separate flyback converter for battery charging. These are suitable for good power quality AC power grids only. To dive deeper into our offering, the AC-DC and DC-DC gate driver ICs that make up part of our solution offer diverse benefits, such as over-current detection, UVLO, and a programmable fault clear time, helping you keep things safe and secure. Another example is the CoolMOS™ P7 N-channel SJ MOSFET used in the flyback topology AC-DC unidirectional charger. This MOSFET brings benefits such as being easy to drive and to be run in parallel, enabling higher power density designs, ESD protection, and BOM savings.

Discover these benefits and many more by visiting the block diagram on this page.

Trends in offline UPS

Offline uninterruptible power supplies (UPS) have witnessed several trends in recent years. Energy efficiency, for example, has become a key focus, with manufacturers developing more efficient models to meet regulatory standards and reduce operating costs. Advanced battery technologies, such as lithium-ion, are being integrated to enhance UPS performance and reliability. Power management features, like load shedding and intelligent monitoring, are being incorporated to optimize power usage. The trend towards smaller form factors addresses the need for space-efficient solutions in home offices and small businesses. Increased connectivity options and monitoring capabilities enable remote management and diagnostics. Furthermore, power protection features are being enhanced, including surge protection and improved voltage regulation.

These trends reflect the growing demand for efficient, compact, feature-rich offline UPS systems that provide reliable power backup, reduce energy consumption, and offer advanced management and protection features. Manufacturers are leveraging technological advancements to meet these demands and provide UPS solutions that align with evolving user needs.

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