DB HiTek has been granted a patent for an amplifier that minimizes short-circuit current in the output stage of a buffer during voltage transitions, while maintaining a high slew rate and low power consumption. The design includes various units and circuits to achieve this functionality. GlobalData’s report on DB HiTek 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 DB HiTek, was a key innovation area identified from patents. DB HiTek's grant share as of February 2024 was 73%. Grant share is based on the ratio of number of grants to total number of patents.
Amplifier with minimized short-circuit current and high slew rate
A recently granted patent (Publication Number: US11901869B2) discloses an innovative amplifier design featuring a conversion unit, amplification unit, frequency compensation circuit, and short-circuit current minimization circuit. The amplifier is configured to receive a differential input signal and provide an output voltage in response to varying conversion voltages. The frequency compensation circuit includes compensation capacitors, while the short-circuit current minimization circuit utilizes additional capacitors to optimize performance. The patent also details the configuration of the amplifier's current mirrors, transmission gates, and compensation capacitors to ensure efficient operation and voltage transitions.
Furthermore, the patent describes a slew rate improvement circuit within the amplifier, enabling reversible connection of the output and input terminals based on the voltage at the first input terminal. This feature enhances the amplifier's performance during voltage transitions. The amplifier's design includes specific transistor configurations for the current determiners and followers, ensuring precise voltage control and amplification. Additionally, the patent outlines the use of P-type and N-type transistors in different sections of the amplifier for optimal functionality. The patent also covers the integration of a source driver circuit with a buffer to connect the amplifier's output terminal to the second input terminal, enhancing overall circuit performance and signal transmission efficiency.
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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.
