Nordic Semiconductor has been granted a patent for a circuit portion comprising a load circuit portion with a load transistor and a bias circuit portion with a replica transistor. The feedback loop adjusts the voltage to ensure proportional current flow and counteracts supply voltage changes. GlobalData’s report on Nordic Semiconductor 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 Nordic Semiconductor, M2M communication interfaces was a key innovation area identified from patents. Nordic Semiconductor's grant share as of May 2024 was 23%. Grant share is based on the ratio of number of grants to total number of patents.
Voltage-controlled current mirror circuit with supply voltage compensation
The granted patent (Publication Number: US11990910B2) discloses a circuit portion comprising a load circuit portion with a load transistor and a bias circuit portion with a replica transistor matched to the load transistor. The circuit includes a feedback loop to adjust the voltage at the node connecting the replica transistor and the load transistor, ensuring proportional current flow and counteracting voltage variations due to supply changes. This setup replicates process, voltage, and temperature variations in the load transistor in the matched replica transistor, maintaining stability and accuracy in the circuit operation.
Furthermore, the patent describes a sinusoid-to-square wave buffer circuit portion utilizing the previously mentioned circuit design. This buffer circuit can convert a sinusoidal input signal into a square wave output signal efficiently. An electronic device incorporating this buffer circuit, an oscillator for providing the input signal, and a current source completes the innovation. The method outlined in the patent involves using the circuit portion to generate the square wave output signal from the sinusoidal input signal. Overall, the patent presents a comprehensive and innovative approach to circuit design, particularly in signal conversion applications, ensuring accuracy and stability in operation.
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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.
