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ORIENT-CHIP Technology has been granted a utility model patent: "A ROVP circuit, switching power supply controller, and switching power supply"

Article Source：Qichacha | Author：Qichacha | Issuing Time：2024.04.03
According to data from Qichacha, ORIENT-CHIP Technology (688061) has recently obtained a utility model patent authorization, titled "A ROVP Circuit, Switching Power Supply Controller, and Switching Power Supply". The patent application number is CN202322140390. X, and the authorization date is April 2, 2024.



Patent Abstract

This utility model discloses a ROVP circuit, a switching power supply controller, and a switching power supply, which relates to the field of switching power supply technology. The ROVP circuit includes a nonlinear positive temperature drift current source circuit, a ROVP port circuit, and a TOVP generator. The nonlinear positive temperature drift current source circuit outputs a nonlinear positive temperature drift current in response to the power signal, the ROVP port circuit converts the nonlinear positive temperature drift current into charging current, and the TOVP generator generates an overvoltage protection enable signal based on the charging current; The charging current increases proportionally with the temperature. As the working temperature of the circuit increases, the charging current also increases. The pulse time of the overvoltage protection enable signal with logic high becomes shorter and shorter. If the pulse time of the overvoltage protection enable signal with logic high is short enough, overvoltage protection will not be triggered, and the lighting load driven by the switching power supply will not experience high-temperature flashing phenomenon.

Since the beginning of this year, ORIENT-CHIP technology has obtained 8 new patent authorizations, an increase of 33.33% compared to the same period last year. Based on the company's mid year financial data for 2023, the company invested 54.4176 million yuan in research and development in the first half of 2023, a year-on-year increase of 85.04%.
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