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On April 10, 2024, the financial sector reported that according to the announcement of the China National Intellectual Property Administration, Halo Microelectronics Group Co., Ltd. applied for a patent named "voltage conversion circuit and charger", with the publication number of CN117856614A and the application date of March 2024.The patent abstract shows that the present application discloses a voltage conversion circuit and charger, which relates to the field of electronic circuit technology. The voltage conversion circuit includes an input terminal, an output terminal, a first energy storage branch, a second energy storage branch, a third energy storage branch, and a control branch. The control branch is used to control the conduction and shutdown of switches in the first, second, and third energy storage branches, so that the voltage ratio between the input and output ends is 2N: 1. Among them, in each switching cycle, the tenth switch in the third energy storage branch conducts...
2024
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...
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...
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...
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...