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JOULWATT has been granted an invention patent authorization:

Article Source：Qichacha | Author：Securities Star | Issuing Time：2024.04.20
Securities Star News: According to data from Qichacha, JOULWATT (688141) has obtained a new invention patent authorization, titled "Interleaved Parallel Switching Power Supply Control Circuit and Control Method", with patent application number CN201810731929. X and authorization date of April 19, 2024.

Patent Abstract

The present invention proposes an interleaved parallel switch power supply control circuit, wherein the interleaved parallel switch power supply comprises a main switch circuit and a slave switch circuit. The control circuit comprises a first operational amplifier, wherein the first input terminal receives a feedback voltage and the second input terminal receives a first reference voltage. The first operational amplifier outputs a reference signal, which is used to control the upper and lower limits of the inductor current in the main switch circuit and the upper and lower limits of the inductor current in the slave switch circuit; The control circuit adjusts the upper and lower limit difference of inductance current in the slave switch circuit based on the phase difference between the main switch circuit and the slave switch circuit, so that the phase difference between the main switch circuit and the slave switch circuit reaches the expected phase difference. The present invention can adjust the phase difference between the main switch circuit and the slave switch circuit, and has good dynamic response.


Attached drawings of patent abstract


Since the beginning of this year, JOULWATT has obtained 36 new patent authorizations, an increase of 227.27% compared to the same period last year. Based on the company's mid year financial data for 2023, the company invested 244 million yuan in research and development in the first half of 2023, a year-on-year increase of 69.88%.
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