Single phase input detection and power source protection

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11498147
APP PUB NO 20190337081A1
SERIAL NO

15968464

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Abstract

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A welding-type power supply that receives alternating current (AC) input power and converts the AC input power to direct current (DC) power to provide power for welding tools. The welding-type power supply is configured to detect whether single phase AC power or three-phase AC power is connected to the input of welding-type power supply. Single phase input power may be detected by sampling ripple voltage of the DC power, either synchronously with the AC input power or synchronously with a signal generated by an output of the welding-type power supply.

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Patent Owner(s)

Patent OwnerAddress
ILLINOIS TOOL WORKS INC155 HARLEM AVENUE GLENVIEW IL 60025

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anders, Adam E Oshkosh, US 20 9
Decoster, Randy Appleton, US 3 1
Nelson, Andrew D Appleton, US 24 365
Vogel, Bernard J Troy, US 63 1137

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