Uninterruptable Power Supplies (UPS)

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Uninterruptable Power Supplies (UPS) ensure continuity of supply by converting the DC voltage from a battery or battery bank to an AC voltage with the requested amplitude and frequency in case of power outages. Depending on application requirements, a UPS can be built with a simple off-line configuration or with a double conversion online method for high-end, medium- or high-power UPSs as this also improves the quality of the power supplied to sensitive loads including computers, servers, equipment used industrial processes, instrumentation and telecommunication equipment. Read more

Our products and solutions

We offer high-performance discrete devices including high- and low-voltage power MOSFETs, IGBTs, thyristors and silicon-carbide (SiC) diodes and power MOSFETs as well as galvanically-isolated and high-voltage gate drivers, power factor correction (PFC) controllers and high-performance STM32 microcontrollers to enable high-efficiency, high-reliability UPS designs.

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	Resource title		Latest update

Application Notes (5 of 17)

Flyers (1)

	Resource title		Latest update
PDF	STEVAL-IPFC01V1 3 kW three-channel interleaved PFC 1.0		18 Mar 2021	18 Mar 2021 STEVAL-IPFC01V1 3 kW three-channel interleaved PFC 1.0

All Hardware Evaluation Tools

Evaluation Tools

Part Number	Description	Core product	Tool Type	Supplier	Sort by: part number
STEVAL-EFUSE01 Active	Evaluation board based on the STEF01 fully programmable universal electronic fuse	STEF01	PSU and Converter Solution Eval Boards	ST	STEVAL-EFUSE01 Active Evaluation board based on the STEF01 fully programmable universal electronic fuse

	Resource title	Latest update
PDF	AN5034 12 V - 210 W converter based on STCMB1, combo TM PFC, HB LLC and SRK2001, adaptive SR controller 2.0	23 Apr 2021	23 Apr 2021 AN5034 12 V - 210 W converter based on STCMB1, combo TM PFC, HB LLC and SRK2001, adaptive SR controller 2.0
PDF	AN5106 150 V – 150 W LED driver using the STCMB1 transition mode PFC and HBR resonant tank combo controller 3.0	24 Mar 2020	24 Mar 2020 AN5106 150 V – 150 W LED driver using the STCMB1 transition mode PFC and HBR resonant tank combo controller 3.0
PDF	AN1768 ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES 1.1	23 Apr 2021	23 Apr 2021 AN1768 ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES 1.1
PDF	AN2025 CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION 1.1	13 Sep 2018	13 Sep 2018 AN2025 CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION 1.1
PDF	AN604 Calculation of conduction losses in a power rectifier 3.2	03 May 2021	03 May 2021 AN604 Calculation of conduction losses in a power rectifier 3.2
PDF	AN4021 Calculation of reverse losses in a power diode 1.0	03 May 2021	03 May 2021 AN4021 Calculation of reverse losses in a power diode 1.0
PDF	AN5028 Calculation of turn-off power losses generated by a ultrafast diode 1.0	13 Sep 2018	13 Sep 2018 AN5028 Calculation of turn-off power losses generated by a ultrafast diode 1.0
PDF	AN4381 Current sharing in parallel diodes 1.0	03 May 2021	03 May 2021 AN4381 Current sharing in parallel diodes 1.0
PDF	AN5264 EVL400W-EUPL7 400W SMPS demonstration board 2.0	23 Apr 2021	23 Apr 2021 AN5264 EVL400W-EUPL7 400W SMPS demonstration board 2.0
PDF	AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1	03 May 2021	03 May 2021 AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1
PDF	AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0	23 Apr 2021	23 Apr 2021 AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0
PDF	AN5088 Rectifiers thermal management, handling and mounting recommendations 2.0	03 May 2021	03 May 2021 AN5088 Rectifiers thermal management, handling and mounting recommendations 2.0
PDF	AN533 SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting 3.6	03 May 2021	03 May 2021 AN533 SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting 3.6
PDF	AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1	03 May 2021	03 May 2021 AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1
PDF	AN4390 ST’s MOSFET technologies for uninterruptible power supplies 1.1	17 Mar 2021	17 Mar 2021 AN4390 ST’s MOSFET technologies for uninterruptible power supplies 1.1
PDF	AN1542 THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION 1.1	23 Apr 2021	23 Apr 2021 AN1542 THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION 1.1
PDF	AN869 Tj max limit of Schottky diodes 2.2	03 May 2021	03 May 2021 AN869 Tj max limit of Schottky diodes 2.2