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    RU 2371287
    TRANSFORMERLESS POWER SUPPLY FOR ELECTRIC WELDING

    Inventor: Tyshkevich Evgenij Valentinovich (RU)

FIELD: electricity.

SUBSTANCE: invention relates to electronic pulse engineering and can be used in construction, manufacturing and everyday life as a power supply, designed for arc and resistance welding various objects using direct current. The transformerless power supply for electric welding has a power supply unit, three-phase ringed clock generator, three comparators, voltage setter, protective diode and filter choke, connected by its output to the welding electrode, nine electronic switches and six reservoir capacitors. The welded structure is connected to the common bus of the device.

EFFECT: increased reliability and provision for stable output operational characteristics, wide frequency range, high efficiency, small size and mass.

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