A123 Systems had three patents in future of work during Q2 2024. A battery management system (BMS) with a protection circuit is described, where the protection circuit includes an input connected to a control input of a cutoff circuit. The protection circuit also includes a low-current leakage transistor to prevent unexpected switching ON of the cutoff circuit, enhancing safety and reliability in vehicle battery systems. GlobalData’s report on A123 Systems gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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A123 Systems had no grants in future of work as a theme in Q2 2024.
Recent Patents
Application: Protection circuit for battery management system (Patent ID: US20240113514A1)
The patent filed by A123 Systems LLC describes a battery management system (BMS) with a protection circuit that includes a low-current leakage transistor and a MOSFET. The protection circuit is designed to maintain the MOSFET in an OFF state in response to a reverse bias voltage, preventing unexpected switching ON of the cutoff circuit. The system also includes a driver integrated circuit to switch the MOSFET to an ON state when required, controlled by a controller.
The method described in the patent involves managing current flow through a battery pack cutoff circuit by flowing current from a control input to an output while preventing current flow across the control input to the output in response to a negative voltage. This is achieved by activating a low-current leakage transistor, which is coupled to a Zener diode to increase the base-emitter voltage of the transistor. The system also includes a transient-voltage suppression (TVS) diode to switch ON the low-current leakage transistor. Overall, the BMS and method described in the patent aim to enhance the safety and efficiency of battery systems in vehicles.
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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.
