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HONOTO has obtained patents for isolated driving circuits and switching power supplies, effectively improving the anti-interference ability of isolated driving circuits

Article Source：China National Intellectual Property Administration | Author：Financial Sector | Issuing Time：2024.06.04
On May 30, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Shenzhen HONOTO Electronics Co., Ltd. obtained an item entitled "Isolated Drive Circuit and Switching Power Supply", with the authorization announcement number of CN221042653U, and the application date of September 2023.

The patent abstract shows that the present application discloses an isolated driving circuit and a switching power supply. The circuit includes: a switching circuit, connected in series between the input and output terminals of an isolated driving circuit; The detection control circuit includes a first control end, a first detection end, and a second detection end. The first control end is electrically connected to the second control end of the switch circuit, and the first detection end is electrically connected to the input end of the isolation drive circuit; The first filtering circuit includes a first end, a second end, and a third end. The first end is electrically connected to the output end of the isolated driving circuit, the second end is electrically connected to the second detection end, and the third end is grounded; When the detection control circuit detects that the input voltage of the isolated drive circuit is higher than the output voltage, the switch circuit conducts; When the detection control circuit detects that the voltage at the input end of the isolated drive circuit is lower than the voltage at the output end, the switch circuit opens, which not only improves the anti-interference ability of the isolated drive circuit, but also avoids the influence of voltage spike stress during the parallel insertion and removal process of the switch power supply.


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