Abstract: The method, apparatus and system of a single-stage current-fed clamped series resonant power factor corrected (PFC) converter CF-CSRC provides power conversion and current regulation. The CF-CSRC system may be implemented in a single-stage isolated topology for high efficiency unity power factor correction (PFC) converter applications. Moreover, the CF-CSRC system combines the intrinsic advantages of the classical clamped series resonant converter while mitigating drawbacks by using an integrated boost input current shaper.

Abstract: The method, apparatus and system of a single-stage current-fed clamped series resonant power factor corrected (PFC) converter CF-CSRC provides power conversion and current regulation. The CF-CSRC system may be implemented in a single-stage isolated topology for high efficiency unity power factor correction (PFC) converter applications. Moreover, the CF-CSRC system combines the intrinsic advantages of the classical clamped series resonant converter while mitigating drawbacks by using an integrated boost input current shaper.

Abstract: Provided is a sensor system for an outdoor lighting system including at least one sensor physically connected with an external connector of a lighting fixture of the outdoor lighting system. The sensor performs sensing and wireless data and power connection, via a wireless power source and a wireless data source, with the outdoor lighting system.

Abstract: The method, apparatus and system of a single-stage current-fed clamped series resonant power factor corrected (PFC) converter CF-CSRC provides power conversion and current regulation. The CF-CSRC system may be implemented in a single-stage isolated topology for high efficiency unity power factor correction (PFC) converter applications. Moreover, the CF-CSRC system combines the intrinsic advantages of the classical clamped series resonant converter while mitigating drawbacks by using an integrated boost input current shaper.

Abstract: Provided is a sensor system for an outdoor lighting system including at least one sensor physically connected with an external connector of a lighting fixture of the outdoor lighting system. The sensor performs sensing and wireless data and power connection, via a wireless power source and a wireless data source, with the outdoor lighting system.

Abstract: Provided is a sensor system for an outdoor lighting system including at least one sensor physically connected with an external connector of a lighting fixture of the outdoor lighting system. The sensor performs sensing and wireless data and power connection, via a wireless power source and a wireless data source, with the outdoor lighting system.

Abstract: A workpiece cutting apparatus includes a cutting table with a workpiece receiving surface, at least two longitudinally-extending rails extending longitudinally on opposed sides of the cutting table and substantially parallel to one another, a bridge with an elongated cutting assembly support and engagement arms at opposed ends thereof, and at least two driving assemblies. Each one of the engagement arms includes a bridge engagement member engageable with a corresponding one of the at least two longitudinally-extending rails, from below. Each one of the driving assemblies operatively connects each one of the engagement arms to the corresponding one of the at least two longitudinally-extending rails. The at least two driving assemblies are actuable to translate the engagement arms along the at least two longitudinally-extending rails. A method of cutting a workpiece using the workpiece cutting apparatus and a method for assembling a workpiece cutting apparatus are also provided.

Abstract: An LED driver circuit includes a primary circuit and a circuit electrically isolated from the primary circuit, a transformer having a primary winding configured to receive power from an alternating current source and to generate power in a first secondary winding configured to provide power to the electrically isolated circuit, and to generate power in a second secondary winding configured to provide power to the primary circuit, and a conductor connected to an end of the first secondary winding and configured to connect a winding driver signal to the first secondary winding to generate power in the second secondary winding.

Abstract: An LED driver circuit includes a primary circuit and a circuit electrically isolated from the primary circuit, a transformer having a primary winding configured to receive power from an alternating current source and to generate power in a first secondary winding configured to provide power to the electrically isolated circuit, and to generate power in a second secondary winding configured to provide power to the primary circuit, and a conductor connected to an end of the first secondary winding and configured to connect a winding driver signal to the first secondary winding to generate power in the second secondary winding.

Abstract: A workpiece cutting apparatus includes a cutting table with a workpiece receiving surface, at least two longitudinally-extending rails extending longitudinally on opposed sides of the cutting table and substantially parallel to one another, a bridge with an elongated cutting assembly support and engagement arms at opposed ends thereof, and at least two driving assemblies. Each one of the engagement arms includes a bridge engagement member engageable with a corresponding one of the at least two longitudinally-extending rails, from below. Each one of the driving assemblies operatively connects each one of the engagement arms to the corresponding one of the at least two longitudinally-extending rails. The at least two driving assemblies are actuable to translate the engagement arms along the at least two longitudinally-extending rails. A method of cutting a workpiece using the workpiece cutting apparatus and a method for assembling a workpiece cutting apparatus are also provided.

Abstract: A plurality of gas turbine components or other articles are manufactured from a plurality of metallic-alloy workpieces using a manufacturing apparatus having a metalworking apparatus, and an annealing apparatus wherein the individual workpieces are annealed by single-workpiece annealing and not by large-batch annealing. A workpiece flow of the plurality of workpieces is established sequentially through the metalworking apparatus and the annealing apparatus.

Abstract: A hand-held manual tool used to even out or level the ground, similar to a rake. A rake, even handled with care, leaves tracks on the ground such as grooves, undulations, edges, etc. This contraption is a manual and light spiral formed tool, which allows leveling and even the ground in an easy movement. Even if the movements are done in any directions, it keeps the desired level for a smooth finish, without leaving any tracks on the ground.