Cirrus Logic. has been granted a patent for control circuitry designed to manage current through an inductor in a power converter. The system includes comparison, detection, and current control circuitry to ensure the inductor’s current aligns with a target average during charging phases. GlobalData’s report on Cirrus Logic 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 Cirrus Logic, Voice biometrics was a key innovation area identified from patents. Cirrus Logic's grant share as of July 2024 was 66%. Grant share is based on the ratio of number of grants to total number of patents.
Control circuitry for inductor current management in power converters
The patent US12068690B2 describes a control circuitry designed for managing current through an inductor in a power converter. The control circuitry includes comparison circuitry that evaluates a measurement signal, which reflects the inductor's current during a designated operational phase, against a target average current signal. This comparison generates a comparison signal that aids detection circuitry in identifying a crossing time, indicating when the inductor's current aligns with the target average. Subsequently, current control circuitry adjusts the inductor's current in a following phase based on this crossing time, ensuring that the current remains within desired parameters.
Additionally, the control circuitry features monitoring components that track the duration of the operational phase, utilizing a switch's on-time to facilitate this monitoring. The circuitry employs counters to quantify the duration of the phase and the crossing time, with synchronization to a common clock signal. The comparison circuitry may include differential amplifiers and comparators, potentially utilizing both analog and digital components. The design allows for adjustments in the inductor's current based on the relationship between the crossing time and the phase duration, enabling compensation for any discrepancies. The patent also encompasses an integrated circuit implementation and outlines the potential for use in electronic devices, emphasizing its relevance in optimizing power converter performance.
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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.
