Cirrus Logic had eight patents in batteries during Q2 2024. Cirrus Logic Inc filed patents for a battery charging control system, a battery temperature control system, and a system for performing measurements on a component. The battery charging system detects battery impedance to control charging current, the temperature control system uses a heating component network to dissipate heat from the battery, and the measurement system includes ADC converter circuitry and processing circuitry to generate accurate measurement results. 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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Cirrus Logic had no grants in batteries as a theme in Q2 2024.
Recent Patents
Application: System for controlling charging of a battery (Patent ID: US20240178693A1)
The patent filed by Cirrus Logic Inc. describes a system for controlling the charging of a battery by periodically detecting the impedance of the battery and adjusting the charging current or voltage accordingly. The system includes charging circuitry that can detect voltage and current of the battery to infer the temperature of the battery and control a heating arrangement to maintain the battery temperature within a predefined range for optimal charging. Additionally, the system can monitor load current drawn from the battery across different frequencies to generate an electrochemical impedance spectrum (EIS) measurement output for estimating the battery temperature accurately.
Furthermore, the system can calibrate itself using temperature measurements of the host device when inactive or in sleep mode, ensuring accurate impedance detection and temperature control during charging. The system also includes features such as controlling a current-consuming device to draw additional current from the battery if necessary, comparing EIS measurement outputs to reference outputs, and estimating battery temperature based on a combination of EIS measurements, state of charge (SoC), and state of health (SoH) of the battery. Overall, the system provides an efficient and precise method for charging batteries while maintaining optimal temperature conditions for improved battery performance and longevity.
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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.
