Renesas Electronics has been granted a patent for an LDO regulator that efficiently generates an output voltage based on an input voltage. The regulator includes specific components like amplifier stages, a driver stage, and a gain limiter stage to optimize performance. GlobalData’s report on Renesas Electronics gives a 360-degree view of the company including its patenting strategy. Buy the report here.
Smarter leaders trust GlobalData
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 May 2024 was 49%. Grant share is based on the ratio of number of grants to total number of patents.
Patent granted for low dropout regulator with gain limiter
A recently granted patent (Publication Number: US12001232B2) discloses a low dropout (LDO) regulator designed to efficiently generate an output voltage based on an input voltage. The regulator includes multiple stages such as a first amplifier stage, driver stage, second amplifier stage, feedback stage, and a gain limiter stage. The gain limiter stage, crucial for lowering the regulation loop gain, consists of first and second current mirrors, with a capacitive element aiding in compensating current variations at different frequencies. This innovative design aims to enhance the regulator's performance by adjusting the gain frequency and impedance at the intermediate node, ultimately improving the overall stability and efficiency of the LDO regulator.
Furthermore, the patent details the specific components and configurations of the LDO regulator, including an operational transconductance amplifier in the first amplifier stage, a power switching element in the second amplifier stage, and a voltage divider in the feedback stage. The driver stage features switching elements that form a current mirror, while the gain limiter stage is instrumental in increasing load current and adjusting the non-dominant pole frequency. Additionally, a method for operating the LDO regulator is outlined, emphasizing the importance of amplifying the difference between reference and feedback voltages to regulate the output current effectively. By limiting the regulation loop gain through the gain limiter stage, the method ensures optimal performance and stability of the LDO regulator, showcasing a comprehensive approach to voltage regulation in electronic devices.
To know more about GlobalData’s detailed insights on Renesas Electronics, buy the report here.
Data Insights
From
The gold standard of business intelligence.
Blending expert knowledge with cutting-edge technology, GlobalData’s unrivalled proprietary data will enable you to decode what’s happening in your market. You can make better informed decisions and gain a future-proof advantage over your competitors.
GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
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.
