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· ORNL researchers develop "ride through" control algorithms to enhance the reliability of electric vehicle charging

ORNL researchers are developing algorithms and multilayered communication and control systems that make electric vehicle chargers operate more reliably, even if there is a voltage drop or disturbance in the electric grid. Credit: Andy Sproles/ORNL, US Dept. of EnergyAmerican drivers have long been accustomed to quickly filling up at a gas station with plenty of fuel available, and electric vehicle drivers want their pit stops to mimic this experience. Driver uncertainty about access to charging during long trips remains a barrier to broader EV adoption, even as the U.S. strives to combat climate change by converting more drivers.Researchers at the Department of Energy’s Oak Ridge National Laboratory are working to make EV charging more resilient. “The main focus is to make chargers available for EVs even if there is an electrical disturbance or hardware failure inside or outside the charger,” said ORNL’s Namwon Kim, a lead researcher on the project. “We w...
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04-11
2024
· Huawei has obtained a patent for a magnetic integrated device and a magnetic integrated switching power supply, which can effectively reduce the board area and volume of magnetic devices

On April 11, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Huawei Technologies Co., Ltd. had obtained a patent entitled "a magnetic integrated device and magnetic integrated switching power supply", with the authorization announcement number of CN114121451B and the application date of August 2020.The patent abstract shows that the present embodiment discloses a magnetic integrated device and a magnetic integrated switch power supply, which relates to the field of circuit technology and solves the problem of large board area and volume of magnetic devices in the prior art. The specific scheme is as follows: the magnetic integration device includes magnetic core I, which includes a core body, a first side pillar, a second side pillar, M first winding pillars, and N second winding pillars, where M and N are integers greater than or equal to 1; The core body is connected to the first side pillar, the sec...
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04-11
2024
· CATL has been granted an invention patent authorization: "Testing System, Method, Electronic Equipment, and Storage Medium for Power Supply Conversion Device"

Securities Star News: According to data from Qichacha, CATL (300750) has obtained a new invention patent authorization titled "Testing System, Method, Electronic Equipment, and Storage Medium for Power Supply Conversion Device". The patent application number is CN202110877278.7, and the authorization date is April 9, 2024.Patent AbstractThe present embodiment provides a testing system, method, and storage medium for a power conversion device, belonging to the field of aging testing technology. The power grid is connected to the AC end of the first power conversion device, and the power grid is also connected to the AC end of the second power conversion device. The DC end of the first power conversion device is connected to the DC end of the second power conversion device, so that a testing circuit can be formed between the power grid, the first power conversion device, and the second power conversion device. In this testing circuit, the first power conversion device and the second pow...
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04-11
2024
· Quality Intelligence applies for a switching power supply circuit patent to reduce the energy emitted externally

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...
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04-10
2024
· ORIENT-CHIP has obtained utility model patent authorization: "A ROVP circuit, switching power supply controller, and switching power supply"

Securities Star News: According to data from Qichacha, Canrui Technology (688061) has recently obtained a utility model patent authorization, titled "A ROVP Circuit, Switching Power Supply Controller, and Switching Power Supply". The patent application number is CN202322140390. X, and the authorization date is April 2, 2024.Patent Abstract: This utility model discloses a ROVP circuit, a switching power supply controller, and a switching power supply, which relates to the field of switching power supply technology. The ROVP circuit includes a nonlinear positive temperature drift current source circuit, a ROVP port circuit, and a TOVP generator. The nonlinear positive temperature drift current source circuit outputs a nonlinear positive temperature drift current in response to the power signal, the ROVP port circuit converts the nonlinear positive temperature drift current into charging current, and the TOVP generator generates an overvoltage protection enable signal based on the chargi...
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04-10
2024

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