Cirrus Logic has filed a patent for a system that includes a power converter, an energy storage element, and control circuitry. The system is designed to store excess energy and consume it when the input power of the power converter exceeds the maximum allowable input power, ensuring positive voltage headroom for the circuitry. The patent claims have been canceled. 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 June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.
Power converter system with energy storage for excess energy consumption
The filed patent (Publication Number: US20230208303A1) describes a system and method for power supply voltage regulation in an amplifier. The system includes a power converter that generates a first supply voltage and a second supply output that generates a second supply voltage lower than the first supply voltage. The second supply voltage tracks the envelope of the output signal generated by the amplifier. The amplifier can select between the first and second supply voltages as its supply voltage.
In more detail, the system comprises a power supply with a power converter that generates a first supply voltage at a first supply output and a second supply output that generates a second supply voltage lower than the first supply voltage. An amplifier is coupled to the power supply and can select between the first and second supply voltages as its supply voltage. The second supply voltage tracks the envelope of the output signal generated by the amplifier.
Additionally, the system includes an energy storage element coupled to the output of the power converter. The energy storage element is configured to store excess energy. The second supply voltage not only tracks the envelope of the output signal but also regulates the voltage at the bottom plate of the energy storage element when the amplifier consumes power from the first supply output.
The method described in the patent involves generating a first supply voltage with a power converter and generating a second supply voltage lower than the first supply voltage with a second supply output. The second supply voltage tracks the envelope of the output signal generated by the amplifier. The method also includes selecting, by the amplifier, between the first and second supply voltages as its supply voltage.
In summary, the patent describes a system and method for power supply voltage regulation in an amplifier. The system includes a power converter, a second supply output, and an amplifier that can select between two supply voltages. The second supply voltage tracks the envelope of the output signal and can also regulate the voltage at an energy storage element. The method involves generating the supply voltages and selecting the appropriate supply voltage for the amplifier.
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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.
