Diodes has been granted a patent for a voltage converter circuit featuring a depletion transistor and resistive element to limit leakage current and provide turn-on current to a switch. The circuit design ensures efficient operation and control of power supply systems. GlobalData’s report on Diodes gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Diodes, Authentication communication protocols was a key innovation area identified from patents. Diodes's grant share as of January 2024 was 68%. Grant share is based on the ratio of number of grants to total number of patents.

Voltage converter circuit with depletion transistor and resistive element

Source: United States Patent and Trademark Office (USPTO). Credit: Diodes Incorporated

A recently granted patent (Publication Number: US11876511B2) discloses a voltage converter circuit that includes a depletion transistor and a resistive element to limit leakage current and provide a turn-on current to a switch. The resistive element is connected between the gate and drain/source terminals of the depletion transistor, generating a negative voltage across it. The circuit effectively controls leakage current flow between voltage rails and regulates the turn-on current based on the pinch-off voltage of the depletion transistor.

Furthermore, the patent also describes a process for limiting leakage current in the voltage converter circuit by flowing current through a path involving the depletion transistor and resistive element. By applying a pinch-off voltage to the depletion transistor, the current is restricted, with the voltage across the resistive element creating a negative voltage between the gate and source terminals of the transistor. This process ensures efficient current limitation based on the resistive element's characteristics and the configuration of the depletion transistor, enhancing the overall performance of the voltage converter circuit.

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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.