Cirrus Logic has filed a patent for a power converter that converts input voltage into output voltage. The converter includes multiple phases, each with various components such as power inductors, flying capacitors, and switches. The patent also includes balancing switches to enable charge balancing between capacitors. 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 September 2023 was 64%. Grant share is based on the ratio of number of grants to total number of patents.
Power converter with charge balancing between capacitors in series or parallel
The patent (Publication Number: US20230318447A1) describes a power converter that converts an input voltage into an output voltage. The power converter includes multiple phases, each consisting of a switching node, a power inductor, a flying capacitor, a pump capacitor, and various switches. The power converter also includes balancing switches that connect the capacitors of different phases.
The power converter operates in a forward 3-level buck mode, with multiple switching states. In some states, the flying capacitors of the different phases are connected in series, while in others they are connected in parallel. The switching states vary based on the duty cycle of the converter.
Additionally, the power converter can operate in a forward hybrid boost mode, a bypass mode, a forward 2:1 switched capacitor mode, or a forward 2-level buck mode. Each mode has specific switching states and configurations of the switches.
The patent also describes a method for converting the input voltage into the output voltage using the power converter. The method involves operating the power converter in the various modes and switching states described in the patent.
Furthermore, the patent includes an integrated circuit for use in the power converter. The integrated circuit includes multiple phases, switches, capacitors, and inductors. It also includes a control circuit that operates the power converter in the different modes and switching states.
Overall, the patent presents a power converter design with multiple phases and various operating modes. The design allows for efficient conversion of input voltage to output voltage, with the ability to balance charge between capacitors and adapt to different duty cycles. The integrated circuit provides a compact and integrated solution for implementing the power converter.
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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.
