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Arc welding is an assembling process that joins metal parts by causing their fusion through high-current flowing through the electrode and the base material. The current, either DC or AC, is generated by a specifically designed high-frequency inverter switched mode power supply (SMPS) usually based on half-bridge, full-bridge, and two-transistor forward topologies.

The main requirements in an SMPS for welding are high efficiency and reliability as well as power density to enable lighter and more compact designs.

We have a range of power MOSFETS and diodes – both Si and SiC based for higher efficiency – and IGBTs as well as galvanically isolated gate drivers and high-performance 32-bit STM32 microcontrollers to enable compact designs with higher efficiency.

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      AN5034
      12 V - 210 W converter based on STCMB1, combo TM PFC, HB LLC and SRK2001, adaptive SR controller
      2.0
      7.59 MB
      PDF
      AN5106
      150 V – 150 W LED driver using the STCMB1 transition mode PFC and HBR resonant tank combo controller
      3.0
      6.17 MB
      PDF
      AN5264
      EVL400W-EUPL7 400W SMPS demonstration board
      2.0
      6.03 MB
      PDF
      AN4929
      H series 1200 V IGBTs on 3-phase full-bridge DC-DC power converter welding machine
      1.1
      1.35 MB
      PDF
      AN4720
      Half bridge resonant LLC converters and primary side MOSFET selection
      1.0
      1.4 MB
      PDF
      AN4544
      IGBT datasheet tutorial
      1.1
      2.4 MB
      PDF
      AN5080
      IIS2MDC: high-accuracy, ultra-low-power, 3-axis digital output magnetometer
      2.0
      415.48 KB
      PDF
      AN5277
      Introduction to the new fast 650 V HB2 IGBT series on a two‑switch forward welding equipment
      1.0
      1.08 MB
      PDF
      AN4602
      LIS3MDL: three-axis digital output magnetometer
      1.0
      584.14 KB
      PDF
      AN4406
      MDmesh™ M2: the new ST super-junction technology ideal for resonant topologies
      1.0
      652.78 KB
      PDF
      AN4638
      Welding machines: V and HB series IGBTs on two-switch forward converters
      1.0
      724.64 KB
      PDF
      AN5034

      12 V - 210 W converter based on STCMB1, combo TM PFC, HB LLC and SRK2001, adaptive SR controller

      AN5106

      150 V – 150 W LED driver using the STCMB1 transition mode PFC and HBR resonant tank combo controller

      AN5264

      EVL400W-EUPL7 400W SMPS demonstration board

      AN4929

      H series 1200 V IGBTs on 3-phase full-bridge DC-DC power converter welding machine

      AN4720

      Half bridge resonant LLC converters and primary side MOSFET selection

      AN4544

      IGBT datasheet tutorial

      AN5080

      IIS2MDC: high-accuracy, ultra-low-power, 3-axis digital output magnetometer

      AN5277

      Introduction to the new fast 650 V HB2 IGBT series on a two‑switch forward welding equipment

      AN4602

      LIS3MDL: three-axis digital output magnetometer

      AN4406

      MDmesh™ M2: the new ST super-junction technology ideal for resonant topologies

      AN4638

      Welding machines: V and HB series IGBTs on two-switch forward converters

    • Description Version Size Action
      TA0350
      New trench gate field-stop V series: the real tail-less IGBT
      1.0
      471.47 KB
      PDF
      TN0018
      Surface mounting guidelines for MEMS sensors in an LGA package
      6.0
      214.31 KB
      PDF
      TA0350

      New trench gate field-stop V series: the real tail-less IGBT

      TN0018

      Surface mounting guidelines for MEMS sensors in an LGA package

Presentations & Training Material

    • Description Version Size Action
      Power Factor Corrector controllers portfolio
      1.22 MB
      PDF
      SLLIMM™- nano Series 1.0
      2.81 MB
      PDF

      Power Factor Corrector controllers portfolio

      SLLIMM™- nano Series

Publications and Collaterals

    • Description Version Size Action
      1200V SiC diodes, 2 to 40 A in surface-mount and through-hole packages 1.0
      748.77 KB
      PDF
      800-1050V MDmesh™ K5 ST’s first super-junction VHV MOSFET Series 1.0
      516.44 KB
      PDF
      800-1700 V MDmesh K5: Very high voltage super-junction Power MOSFET series 1.0
      477.67 KB
      PDF
      DC-DC converters
      557.92 KB
      PDF
      HB series 650 V IGBTs; Trench Gate Field-stop High-speed technologies 1.0
      290.2 KB
      PDF
      L6984, L6986 Energy saving synchronous DC-DC converters for industrial
      1.24 MB
      PDF
      ST Diodes Finder : the new app for Android and iOS 2.0
      1.46 MB
      PDF
      STEVAL-IPFC01V1 3 kW three-channel interleaved PFC 1.0
      693.89 KB
      PDF

      1200V SiC diodes, 2 to 40 A in surface-mount and through-hole packages

      800-1050V MDmesh™ K5 ST’s first super-junction VHV MOSFET Series

      800-1700 V MDmesh K5: Very high voltage super-junction Power MOSFET series

      DC-DC converters

      HB series 650 V IGBTs; Trench Gate Field-stop High-speed technologies

      L6984, L6986 Energy saving synchronous DC-DC converters for industrial

      ST Diodes Finder : the new app for Android and iOS

      STEVAL-IPFC01V1 3 kW three-channel interleaved PFC

    • Description Version Size Action
      Linear and Switching Voltage Regulators Selection Guide 3.0
      370.88 KB
      PDF

      Linear and Switching Voltage Regulators Selection Guide

    • Description Version Size Action
      Products and solutions for Smart industry 3.0
      2.99 MB
      PDF
      STM32F3 series - Mainstream 32-bit MCUs 17.09
      2.18 MB
      PDF

      Products and solutions for Smart industry

      STM32F3 series - Mainstream 32-bit MCUs

eDesignSuite

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.