Abstract: Systems and methods are provided for implementing and utilizing fast response transformer-based power converters for arc welding. An example welding-type system may include a wire feeder controller configured for controlling wire feeding functions in the welding-type system, with the wire feeder controller including a power converter. The power converter may use a circuit topology that includes a transformer-based DC-to-DC converter circuit and an output circuit. The transformer-based DC-to-DC converter circuit may have an input circuit and a modulation circuit, with the modulation circuit including a transformer, with the transformer-based DC-to-DC converter circuit configured to not provide galvanic isolation in the output circuit.

Abstract: A device for identifying fish in a water sample includes a light source configured to illuminate the sample within a container, a camera configured to capture an image of the sample, and a computing device configured to identify fish in the water sample from the image using one or more machine learning models. A computer-implemented method for training a neural network to count and classify fish at different stages of development within a water sample comprises collecting a two or more sets of digital images of water samples containing fish at two or more different stages of development, and training the neural network using the two or more sets of digital images to classify fish in an input digital image of a water sample as one of the stages of development of the two or more sets of digital images.

Abstract: The present invention is directed to a remotely controlled welding machine that uses serializing and modulating circuits to transfer modulated data packets to a welding power source across a weld cable. A transmitter transmits the data packets of desired welding operational parameters to a receiver disposed in the power source across a weld cable also designed to carry welding power from the power source to the wire feeder. The transmitter and other electronics of the wire feeder are constructed to use only a small amount of power which, preferably, is supplied by a DC power supply external to the wire feeder. The DC power supply is designed to provide power to the electronics of the wire feeder when the wire feeder is in a standby mode of operation.

Abstract: The present invention is directed to a system and method of remotely controlling a welding machine with command signals transmitted to the welding power source across a weld cable connecting the power source to a remote device, such a wire feeder. A transmitter transmits the control commands containing desired welding operational parameters to a receiver disposed in the power source across a weld cable also designed to carry welding power from the power source to the wire feeder.

Abstract: The present invention includes a system and method of controlling a remotely located welding-type power source. A communications system includes a user interface to accept a user input at a portable location and a gas purging device to systematically purge pressurized gas from a gas line connecting the portable location to a remote location based on the user input. The communications system also includes a sensor to sense pressure changes in the gas line at the remote location and a processor configured to convert the sensed pressure changes to a representation of the user input.

Abstract: The present invention is directed to a system and method of remotely controlling a welding machine with command signals transmitted to the welding power source across a weld cable connecting the power source to a remote device, such a wire feeder. A transmitter transmits the control commands containing desired welding operational parameters to a receiver disposed in the power source across a weld cable also designed to carry welding power from the power source to the wire feeder.

Abstract: A system and method of duplicating CV mode of operation with a CC power includes a wire feeder designed to automatically adjust the speed of which consumable wire is delivered to a weld so as to maintain a target voltage set by a user. The wire feeder is designed to be operational on a CC power source yet automatically adjust the WFS at a rate of adjustment based on initial WFS so that a user-selected target voltage is maintained at the weld. A controller within the wire feeder is programmed to read an input from the user to the wire feeder identifying a target voltage, determine the rate of adjustment, and control the speed by which a drive assembly delivers metal filler to the weld based on the target voltage. By automatically adjusting the WFS, the user is not required to manually adjust the WFS to maintain the target voltage at the weld.

Abstract: The present invention is directed to an apparatus and method for a welding-type wire feeder. The feeder includes at least one electronically commutated motor (ECM) configured to deliver a consumable for a welding-type process. The feeder includes a controller configured to electronically commutate the at least one ECM so as to precisely perform push and pull functions, speed and acceleration control, and wire reversal.

Abstract: The present invention is directed to a remotely controlled welding machine that uses serializing and modulating circuits to transfer modulated data packets to a welding power source across a weld cable. A transmitter transmits the data packets of desired welding operational parameters to a receiver disposed in the power source across a weld cable also designed to carry welding power from the power source to the wire feeder. The transmitter and other electronics of the wire feeder are constructed to use only a small amount of power which, preferably, is supplied by a DC power supply external to the wire feeder. The DC power supply is designed to provide power to the electronics of the wire feeder when the wire feeder is in a standby mode of operation.

Abstract: A system and method of duplicating CV mode of operation with a CC power includes a wire feeder designed to automatically adjust the speed of which consumable wire is delivered to a weld so as to maintain a target voltage set by a user. The wire feeder is designed to be operational on a CC power source yet automatically adjust the WFS so that a user-selected target voltage is maintained at the weld. A controller within the wire feeder is programmed to read an input from the user to the wire feeder identifying a target voltage and control the speed by which a drive assembly delivers metal filler to the weld based on the target voltage. By automatically adjusting the WFS, the user is not required to manually adjust the WFS to maintain the target voltage at the weld.

Abstract: A system and method of duplicating CV mode of operation with a CC power includes a wire feeder designed to automatically adjust the speed of which consumable wire is delivered to a weld so as to maintain a target voltage set by a user. The wire feeder is designed to be operational on a CC power source yet automatically adjust the WFS at a rate of adjustment based on initial WFS so that a user-selected target voltage is maintained at the weld. A controller within the wire feeder is programmed to read an input from the user to the wire feeder identifying a target voltage, determine the rate of adjustment, and control the speed by which a drive assembly delivers metal filler to the weld based on the target voltage. By automatically adjusting the WFS, the user is not required to manually adjust the WFS to maintain the target voltage at the weld.