Advanced Energy Industries. has been granted a patent for a bias supply system that utilizes a switch network and power supply to apply an asymmetric periodic voltage waveform. The system includes a timing parameter estimator to control the waveform’s application based on current threshold crossings. 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 June 2024 was 48%. Grant share is based on the ratio of number of grants to total number of patents.
Asymmetric periodic voltage waveform bias supply system
The granted patent US12046448B2 describes a bias supply system designed to apply an asymmetric periodic voltage waveform and a corresponding current waveform at an output node relative to a return node. The system includes a switch network, at least one power supply, and a timing parameter estimator. The timing parameter estimator generates a pulse width control signal based on the first crossing time of the current waveform as it crosses a threshold current value after falling from a positive peak. This control signal is used by a gate drive signal generator to manage the application of the voltage and current waveforms through the switch network.
The claims further detail the configuration of the switch network, which can consist of one or two switches, and the methods for determining pulse widths for controlling these switches. The timing parameter estimator is responsible for calculating minimum and maximum pulse widths based on various crossing times of the current waveform. Additionally, the bias supply can utilize either one or two power supplies, and the threshold current values can be derived from a compensation current flowing through an inductor within the power supply. The patent outlines specific methods for determining these values, ensuring precise control over the waveform application, which is critical for various electronic 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.
