Delta Electronics. has been granted a patent for a DC/DC converter that enhances voltage conversion efficiency by reducing the switching frequency range. The converter employs a control method that adjusts output voltage or current through variable duty ratios, frequencies, and delay-time control, improving overall performance. GlobalData’s report on Delta 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 Delta Electronics, Battery management systems was a key innovation area identified from patents. Delta Electronics's grant share as of June 2024 was 68%. Grant share is based on the ratio of number of grants to total number of patents.
Isolated resonant dc/dc converter with improved control method
The patent US12046997B2 describes an isolated resonant converter designed to enhance the efficiency and performance of power conversion systems. The converter comprises multiple phases, each featuring a transformer, resonant components, primary side switches, and secondary side switches. A control circuit is integral to the system, tasked with detecting input and output voltages, generating control signals for the switches based on various parameters, and ensuring that the duty ratios for the primary and secondary switches are managed effectively. Notably, the secondary side switches are configured to have a greater duty ratio than their corresponding primary side switches, with both duty ratios increasing monotonously. The control circuit includes components such as a sensing and scaling circuit, a subtractor circuit for error signal generation, and a processor for signal processing.
Additionally, the patent outlines methods for controlling the resonant converter, emphasizing the detection of electric currents in each phase and the balancing of these currents across multiple phases. The control circuit can modify the second control signals to ensure that the electric currents remain balanced, enhancing the overall efficiency of the converter. The method also includes steps for generating amplified error signals and adjusting duty ratios based on the timing of switch operations. This innovative approach aims to optimize the performance of isolated resonant converters in various applications, potentially leading to improved energy efficiency and reliability in power systems.
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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.
