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Quality Intelligence applies for a switching power supply circuit patent to reduce the energy emitted externally

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.04.10
On April 3, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Quality Intelligent Technology Wuxi Co., Ltd. applied for a patent entitled "a switching power supply circuit and system meeting the electromagnetic compatibility requirements of special products", with the publication number of CN117811363A and the application date of December 2023.



The patent abstract shows that the present invention relates to a switching power supply circuit that meets the electromagnetic compatibility requirements of special products. The sampling circuit includes a boost module, which is used for boosting the input power supply; Mirror module, which is mirrored along the power input and power output with the boost module. The mirror module is used to counteract the magnetic induction energy generated during the boost process. In the switching power supply circuit used to meet the electromagnetic compatibility requirements of special products mentioned above, the two phase switching power supplies use the same PWM control signal to ensure that the two phase switching power supplies work completely synchronously; After designing the switching power supply into two phases, there are two synchronous inductor charging circuits and capacitor charging circuits. The current in this circuit is completely equal and the timing is completely the same. When the current flowing through the two inductors is completely the same, according to the law of magnetic induction, the magnetic induction energy generated externally will cancel out each other, and the cancellation of the magnetic induction energy externally will achieve a reduction in the energy emitted externally.
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