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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.

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Getting to know STDRIVE Gate Drivers for MOSFETs and IGBTs

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	Resource title		Latest update

Application Notes (5 of 11)

	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	24 Mar 2020	24 Mar 2020 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	AN5264 EVL400W-EUPL7 400W SMPS demonstration board 2.0	24 Mar 2020	24 Mar 2020 AN5264 EVL400W-EUPL7 400W SMPS demonstration board 2.0
PDF	AN4929 H series 1200 V IGBTs on 3-phase full-bridge DC-DC power converter welding machine 1.1	13 Sep 2018	13 Sep 2018 AN4929 H series 1200 V IGBTs on 3-phase full-bridge DC-DC power converter welding machine 1.1
PDF	AN4720 Half bridge resonant LLC converters and primary side MOSFET selection 1.0	13 Sep 2018	13 Sep 2018 AN4720 Half bridge resonant LLC converters and primary side MOSFET selection 1.0
PDF	AN4544 IGBT datasheet tutorial 1.1	13 Sep 2018	13 Sep 2018 AN4544 IGBT datasheet tutorial 1.1
PDF	AN5080 IIS2MDC: high-accuracy, ultra-low-power, 3-axis digital output magnetometer 2.0	13 Sep 2018	13 Sep 2018 AN5080 IIS2MDC: high-accuracy, ultra-low-power, 3-axis digital output magnetometer 2.0
PDF	AN5277 Introduction to the new fast 650 V HB2 IGBT series on a two‑switch forward welding equipment 1.0	30 Jan 2019	30 Jan 2019 AN5277 Introduction to the new fast 650 V HB2 IGBT series on a two‑switch forward welding equipment 1.0
PDF	AN4602 LIS3MDL: three-axis digital output magnetometer 1.0	13 Sep 2018	13 Sep 2018 AN4602 LIS3MDL: three-axis digital output magnetometer 1.0
PDF	AN4406 MDmesh™ M2: the new ST super-junction technology ideal for resonant topologies 1.0	13 Sep 2018	13 Sep 2018 AN4406 MDmesh™ M2: the new ST super-junction technology ideal for resonant topologies 1.0
PDF	AN4638 Welding machines: V and HB series IGBTs on two-switch forward converters 1.0	13 Sep 2018	13 Sep 2018 AN4638 Welding machines: V and HB series IGBTs on two-switch forward converters 1.0

Technical Notes & Articles (1)

	Resource title		Latest update
PDF	TA0350 New trench gate field-stop V series: the real tail-less IGBT 1.0		13 Sep 2018	13 Sep 2018 TA0350 New trench gate field-stop V series: the real tail-less IGBT 1.0

Presentations (2)

	Resource title		Latest update
PDF	Power Factor Corrector controllers portfolio		23 Aug 2018	23 Aug 2018 Power Factor Corrector controllers portfolio
PDF	SLLIMM™- nano Series 1.0		13 Jul 2018	13 Jul 2018 SLLIMM™- nano Series 1.0

Flyers (5 of 9)

	Resource title	Latest update
PDF	1200 V SiC diodes, 2 to 40 a in surface-mount and through-hole packages 1.0	21 Jul 2020	21 Jul 2020 1200 V SiC diodes, 2 to 40 a in surface-mount and through-hole packages 1.0
PDF	1200-1700V MDmesh K5 SERIES: Ideal for high input voltage auxiliary power supply systems 1.0	24 Nov 2020	24 Nov 2020 1200-1700V MDmesh K5 SERIES: Ideal for high input voltage auxiliary power supply systems 1.0
PDF	650V HB SERIES IGBTS:Innovative 4-lead package 1.0	07 Jul 2020	07 Jul 2020 650V HB SERIES IGBTS:Innovative 4-lead package 1.0
PDF	800-1700 V MDmesh K5 STPOWER MOSFET very high voltage super-junction series 1.0	06 Oct 2020	06 Oct 2020 800-1700 V MDmesh K5 STPOWER MOSFET very high voltage super-junction series 1.0
PDF	DC-DC converters	30 Jun 2020	30 Jun 2020 DC-DC converters
PDF	HB SERIES 650 V IGBTS:Trench Gate Field-stop High-speed technologies 1.0	15 Feb 2021	15 Feb 2021 HB SERIES 650 V IGBTS:Trench Gate Field-stop High-speed technologies 1.0
PDF	L6984, L6986 Energy saving synchronous DC-DC converters for industrial	06 Feb 2020	06 Feb 2020 L6984, L6986 Energy saving synchronous DC-DC converters for industrial
PDF	ST Diodes Finder : the new app for Android and iOS 2.0	23 Mar 2020	23 Mar 2020 ST Diodes Finder : the new app for Android and iOS 2.0
PDF	STEVAL-IPFC01V1 3 kW three-channel interleaved PFC 1.0	09 Nov 2018	09 Nov 2018 STEVAL-IPFC01V1 3 kW three-channel interleaved PFC 1.0

Selection Guides (1)

	Resource title		Latest update
PDF	Linear and Switching Voltage Regulators Selection Guide 3.0		04 Jan 2021	04 Jan 2021 Linear and Switching Voltage Regulators Selection Guide 3.0

Brochures (2)

	Resource title		Latest update
PDF	Products and solutions for Smart industry 3.0		26 Nov 2020	26 Nov 2020 Products and solutions for Smart industry 3.0
PDF	STM32F3 series - Mainstream 32-bit MCUs 17.09		05 Dec 2018	05 Dec 2018 STM32F3 series - Mainstream 32-bit MCUs 17.09

All tools & software

Finders Apps

Part number	Status	Description	Type	Supplier
ST Diode Finder	Active	Diode product finder application for Android and iOS	Finders Apps	ST	ST Diode Finder Description: Diode product finder application for Android and iOS
STPOWER IGBT Finder	Active	STPOWER IGBT finder mobile app for tablets and smartphones	Finders Apps	ST	STPOWER IGBT Finder Description: STPOWER IGBT finder mobile app for tablets and smartphones
STPOWER MOSFET Finder	Active	STPOWER MOSFET finder mobile app for tablets and smartphones	Finders Apps	ST	STPOWER MOSFET Finder Description: STPOWER MOSFET finder mobile app for tablets and smartphones

MEMS and Sensors Software

Part number	Status	Description	Type	Supplier
C-Driver-MEMS	Active	Standard C platform-independent drivers for MEMS motion and environmental sensors	Drivers for MEMS	ST	C-Driver-MEMS Description: Standard C platform-independent drivers for MEMS motion and environmental sensors

Software Development Tools

Part number	Status	Description	Type	Supplier
ST MCU Finder	Active	STM32 and STM8 product finder for mobile devices and desktops	STM32 Utilities	ST	ST MCU Finder Description: STM32 and STM8 product finder for mobile devices and desktops

Converter

Converter

DC/DC AC/DC

Input

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

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

Output Power

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

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