O2Micro International has filed a patent for a controller that manages a battery pack. The controller includes a detection terminal that transmits an enable signal when battery parameters meet a sleep condition, allowing the detection circuit to determine if the battery pack is connected to a load or charger. The controller also has a receiving terminal to receive the detection result and control the battery pack to enter a sleep mode. Additionally, the controller includes a control terminal to transmit a control signal for managing the on/off state of a charging switch and a discharging switch. GlobalData’s report on O2Micro International gives a 360-degree view of the company including its patenting strategy. Buy the report here.
Smarter leaders trust GlobalData
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 September 2023 was 59%. Grant share is based on the ratio of number of grants to total number of patents.
Battery pack controller for managing battery parameters and modes
A recently filed patent (Publication Number: US20230299602A1) describes a controller for managing a battery pack. The controller includes an acquiring terminal that acquires values of battery parameters, a control unit that controls the battery pack based on these values to enter different operating modes, and a control terminal that transmits control signals to control the on/off state of a charging switch and a discharging switch.
One of the key features of this controller is its ability to transition the battery pack from a sleep mode to a power mode if a trigger event occurs. This is achieved through the control unit, which monitors a voltage value obtained by integrating a sensing voltage indicative of battery current over a specific time period. If this voltage value exceeds a preset value, the trigger event is considered to have occurred, and the battery pack is switched to the power mode.
Additionally, the controller can determine whether the battery pack satisfies a failure condition or a sleep condition based on the values of battery parameters. If a failure condition is met, the control unit switches the battery pack to a suspend mode and generates control signals to turn off the charging and discharging switches. Similarly, if a sleep condition is met, the control unit determines whether the battery pack is connected to a load or a charger and controls the battery pack to enter a specific sleep mode accordingly.
The controller also includes a detection circuit that can be enabled by an enable signal generated by the control unit. The detection circuit detects whether the battery pack is connected to a load or a charger and transmits the detection result to the control unit. Based on this result, the control unit determines the appropriate sleep mode for the battery pack and generates control signals to control the on/off state of the charging and discharging switches.
Overall, this patent describes a controller and a battery management method that allow for efficient control and management of a battery pack based on various battery parameters. The ability to transition between different operating modes and sleep modes based on trigger events and conditions provides flexibility and optimization for battery usage.
To know more about GlobalData’s detailed insights on O2Micro International, buy the report here.
Data Insights
From
The gold standard of business intelligence.
Blending expert knowledge with cutting-edge technology, GlobalData’s unrivalled proprietary data will enable you to decode what’s happening in your market. You can make better informed decisions and gain a future-proof advantage over your competitors.
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.
