Advanced Energy Industries has been granted a patent for bias supplies, plasma processing systems, and methods. The invention involves a bias supply that applies a periodic voltage using specific components and a controller to complete a full cycle of current flow. GlobalData’s report on Advanced Energy Industries gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Advanced Energy Industries, Smart grids was a key innovation area identified from patents. Advanced Energy Industries's grant share as of January 2024 was 46%. Grant share is based on the ratio of number of grants to total number of patents.

Bias supply for plasma processing systems with periodic voltage application

Source: United States Patent and Trademark Office (USPTO). Credit: Advanced Energy Industries Inc

The granted patent (Publication Number: US11887812B2) discloses a bias supply system that applies a periodic voltage through a series of components including inductors, switches, and a controller. The system involves an output node, a return node, and a switch connected to inductors and a voltage source to generate the periodic voltage. The controller is responsible for regulating the application of the periodic voltage by controlling the switch to allow the current to complete a full cycle from zero to peak value and back, ensuring the desired voltage output between the output and return nodes.

Furthermore, the patent details the controller's ability to adjust the voltage source and timing of switch closures to achieve the desired periodic voltage output. The controller, which can include a processor or a field programmable gate array, is equipped with a non-transitory computer-readable medium containing instructions for controlling the switch's operation. This configuration allows for precise control over the bias supply system, ensuring the accurate generation of the periodic voltage as needed for various applications.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.