O2Micro International. has filed a patent for an open cell detection system within a battery management system. The system includes a control unit that enables balance units and comparison circuitry to detect inoperative connections between battery units based on voltage thresholds. GlobalData’s report on O2Micro International gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on O2Micro International, Battery management systems was a key innovation area identified from patents. O2Micro International's grant share as of January 2024 was 59%. Grant share is based on the ratio of number of grants to total number of patents.

Battery management system for open cell detection in batteries

Source: United States Patent and Trademark Office (USPTO). Credit: O2Micro International Ltd

A recently filed patent (Publication Number: US20230402664A1) describes a battery management system designed to efficiently control the charging and discharging of multiple battery units and capacitors. The system includes a balance unit that alternates between enabling and disabling states, comparison circuitry to monitor voltages on the capacitors, and a judging unit to determine the operability of the battery connection based on the comparison results. The system ensures that the capacitors are fully charged or discharged within specific time periods depending on the status of the battery units, enhancing the overall performance and safety of the battery management process.

Moreover, the patent also details a method for controlling the charging and discharging of the capacitors in the battery management system. By enabling and disabling the balance unit at specific intervals, the method ensures efficient energy transfer between the battery units and capacitors. Additionally, the method includes provisions for protecting the battery units from overvoltage and under-voltage conditions, further enhancing the safety and reliability of the battery management system. Overall, the patent highlights innovative techniques for optimizing the performance of battery systems while maintaining a high level of safety and efficiency in energy management.

To know more about GlobalData’s detailed insights on O2Micro International, buy the report here.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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.