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  2. Welding power supply - Wikipedia

    en.wikipedia.org/wiki/Welding_power_supply

    These designs are known as inverter welding units. They generally first rectify the utility AC power to DC; then they switch (invert) the DC power into a stepdown transformer to produce the desired welding voltage or current. The switching frequency is typically 10 kHz or higher.

  3. Arc welding - Wikipedia

    en.wikipedia.org/wiki/Arc_welding

    Arc welding power supplies can deliver either direct (DC) or alternating (AC) current to the work, while consumable or non-consumable electrodes are used. The welding area is usually protected by some type of shielding gas (e.g. an inert gas), vapor, or slag. Arc welding processes may be manual, semi-automatic, or fully automated.

  4. Power inverter - Wikipedia

    en.wikipedia.org/wiki/Power_inverter

    A power inverter, inverter, or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). [1] The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC. [2]

  5. Welding - Wikipedia

    en.wikipedia.org/wiki/Welding

    Welding in space is also possible—it was first attempted in 1969 by Russian cosmonauts during the Soyuz 6 mission, when they performed experiments to test shielded metal arc welding, plasma arc welding, and electron beam welding in a depressurized environment. Further testing of these methods was done in the following decades, and today ...

  6. Power module - Wikipedia

    en.wikipedia.org/wiki/Power_module

    Power modules are used for power conversion equipment such as industrial motor drives, embedded motor drives, uninterruptible power supplies, AC-DC power supplies and in welder power supplies. Power modules are also widely found in inverters for renewable energies as wind turbines, solar power panels, tidal power plants and electric vehicles (EVs).

  7. Insulated-gate bipolar transistor - Wikipedia

    en.wikipedia.org/wiki/Insulated-gate_bipolar...

    [8] [11] [12] In 1957 Frosch and Derick published their work on building the first silicon dioxide transistors, including a NPNP transistor, the same structure as the IGBT. [13] The basic IGBT mode of operation, where a pnp transistor is driven by a MOSFET, was first proposed by K. Yamagami and Y. Akagiri of Mitsubishi Electric in the Japanese ...

  8. Gen Z are increasingly choosing trade schools over college to ...

    www.aol.com/finance/more-gen-z-choosing-trade...

    Gen Z are increasingly choosing trade schools over college to become welders and carpenters because ‘it’s a straight path to a six-figure job’ Orianna Rosa Royle April 4, 2024 at 7:09 AM

  9. Switched-mode power supply - Wikipedia

    en.wikipedia.org/wiki/Switched-mode_power_supply

    Switched-mode power supplies are used for DC-to-DC conversion as well. In heavy vehicles that use a nominal 24 V DC cranking supply, 12 V for accessories may be furnished through a DC/DC switch-mode supply. This has the advantage over tapping the battery at the 12 V position (using half the cells) that the entire 12 V load is evenly divided ...

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