Renesas Electronics has been granted a patent for a multiphase voltage regulator that includes a controller capable of detecting activated power stages. The controller adjusts the gain of a current sense feedback loop to enhance load-transient response, based on the number of active stages. GlobalData’s report on Renesas Electronics 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 Renesas Electronics, Under-screen biometric identification was a key innovation area identified from patents. Renesas Electronics's grant share as of June 2024 was 63%. Grant share is based on the ratio of number of grants to total number of patents.
Multiphasic voltage regulator with adaptive current feedback control
The patent US12047002B2 describes an innovative apparatus and system for enhancing the performance of multiphase voltage regulators. Central to this technology is a controller that interfaces with multiple power stages, enabling it to detect the number of activated power stages. Based on this detection, the controller adjusts the ripple resistance within a current synthesizer. This adjustment is crucial for modifying the gain of a current sense feedback loop, thereby optimizing the load-transient response of the apparatus. The claims detail various methods for adjusting the ripple resistance, including activating specific resistors or modifying the resistance of a variable resistor, ensuring flexibility in response to the operational state of the power stages.
Additionally, the patent outlines a method for operating the multiphase voltage regulator, emphasizing the controller's role in detecting activated power stages and adjusting ripple resistance accordingly. The system is designed to enhance the speed of the load-transient response, which is critical for applications requiring rapid adjustments to load changes. The controller can utilize stored associations in a memory device to determine the appropriate level of ripple resistance adjustment based on the number of activated power stages. This capability not only improves the efficiency of the voltage regulation process but also contributes to the overall performance of electronic systems relying on multiphase voltage regulation.
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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.
