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Zhongdian Xingfa has obtained a switching power supply circuit patent, achieving precise control of voltage and current

Article Source:China National Intellectual Property Administration | Author:Financial Sector | Issuing Time:2024.06.12
On February 28, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Anhui Zhongdian Xingfa and Xinlong Technology Co., Ltd. had obtained a patent named "switching power supply circuit", with the authorization announcement number of CN107086798B and the application date of March 2017.

The patent abstract shows that the present invention discloses a switching power supply circuit, comprising a main power grid, an EMI filter, and a rectifier bridge. The output end of the main power grid is connected to the input end of the EMI filter, and the output end of the EMI filter is connected to the input end of the rectifier bridge. The circuit is characterized in that it further includes a power factor correction module, an isolated DC/DC module, an adjustable DC/DC module, an MCU, a first acquisition module, a second acquisition module, and a control circuit. The output end of the rectifier bridge is connected to a power factor correction module. The power factor correction module is sequentially isolated by a DC/DC module, an adjustable DC/DC module, and then connected to the load. The first acquisition module collects the output voltage data of the isolated DC/DC module. The second acquisition module collects voltage and current data output by the adjustable DC/DC module; The output terminal of the first acquisition module and the output terminal of the second acquisition module are both connected to the input terminal of the MCU. The output terminal of the MCU is controlled by a control circuit to separately control the output voltage of the isolated DC/DC module and the adjustable DC/DC module.



Attached drawings of patent abstract