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JOULWATT has been granted an invention patent authorization: "Switching Power Supply Driver Power Supply Circuit and Switching Power Supply"

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.04.20
Securities Star News: According to data from Qichacha, JOULWATT (688141) has obtained a new invention patent authorization, titled "Switching Power Supply Driver Power Supply Circuit and Switching Power Supply". The patent application number is CN201711351693.9, and the authorization date is April 19, 2024.

Patent abstract

The present invention discloses a switching power supply driving power supply circuit and a switching power supply. The driving power supply circuit is connected to the control end of the switching power supply power transistor, including a power supply capacitor. The first end of the power supply capacitor is connected to the control end of the power transistor, and a voltage regulation signal is generated through the first control signal and pulse signal. The second end of the power supply capacitor receives the voltage regulation signal; When the first control signal is in the first state, the voltage regulation signal is characterized as a pulse state. At this time, the electrical position of the first end of the power supply capacitor is in an effective state and used as the power supply voltage to drive the power transistor to turn on; When the first control signal is in the second state, the voltage regulation signal is characterized as a low-level state. At this time, the electrical position of the first end of the power supply capacitor is in an invalid state to turn off the power transistor. The present invention is capable of continuously driving and supplying power to the power transistor of a switching power supply, with a small power supply capacitance and easy integration.


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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