Huizhou (HK) Yingyuan Technology
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According to data from Qichacha, Kewell (688551) has obtained a new invention patent authorization, titled "A Superconducting Magnet Power Supply Circuit", with patent application number CN201811185315.2, and the authorization date is March 12, 2024.Patent abstractThe present invention provides a superconducting magnet power supply circuit, comprising an AC/DC rectification circuit for converting AC to DC, and a DC/DC circuit series connected to the output end of the AC/DC rectification circuit for adjusting DC power. The DC/DC circuit comprises a first power unit IG1, a second power unit IG2, a diode D1, a current sensor CS1, a filtering inductor L1, a filtering capacitor C1, and a normally closed contactor Q1, The collector of the first power unit IG1 serves as the positive input terminal of the DC/DC circuit and is connected to the negative terminal of diode D1, which can effectively control the charging and discharging of the superconducting magnet. At the same time, energy feedba...
2024
On March 14, 2024, Shenzhen Megmeet (002851) Electrical Co., Ltd. obtained a patent titled "Power Supply and Electrical Equipment" with authorization announcement number CN220586152U and application date of August 2023. This patent relates to the field of power supply technology and proposes a power supply and electrical equipment, including a power module, an outer shell, a first end cover, a first sealing ring, and a first fastener. Through this structure, the waterproof performance has been improved, preventing water from seeping into the containment chamber.Patent abstractThe present embodiment relates to the field of power supply technology, and particularly discloses a power supply and an electrical device, comprising a power module, an outer shell, a first end cover, a first sealing ring, and a first fastener. The shell includes a shell wall and a first fastening part. The shell wall is enclosed in a housing chamber, and the power module is housed in the housing chamber. The fi...
Sosen has been granted an invention patent authorization: "Adaptive dimming method for LED driver power supply and LED driver power supply"According to data from Qichacha, Sosen (301002) has obtained a new invention patent authorization, titled "Adaptive Dimming Method for LED Driver Power Supply and LED Driver Power Supply". The patent application number is CN202210148172.8, and the authorization date is March 15, 2024.Patent abstract:The present invention relates to an adaptive dimming method for an LED driver power supply and an LED driver power supply, comprising the following steps: obtaining the startup and running time of the LED driver power supply; Determine the effective operating time of the LED driver power supply based on the startup running time; Determine the average startup time of the LED driver power supply based on the effective operating time; Adapt the preset dimming curve based on the average startup time to obtain the adaptive dimming curve; Perform adaptive dim...
The infringing charger set seized by Nanning Wuwei Airport Customs Recently, Nanning Wuwei Airport Customs seized 3296 sets of intellectual property infringement charger sets in a shipment of goods and handed them over to subsequent departments for disposal.On that day, customs officers at Nanning Wuwei Airport seized a total of 3296 mobile phone charging sets with logos such as "HUAWEI", "Xiaomi", and "VIVO" while supervising a shipment of goods. Due to the inability of the parties involved to provide legal and valid export authorization certificates from the relevant brand, after contacting the rights holder for confirmation, the batch of charger sets is infringing goods and has been handed over to subsequent departments for disposal.Customs reminds that according to Article 91 of the Customs Law of the People's Republic of China, if the import and export of goods that infringe on intellectual property rights protected by laws and administrative regulations of the People's Republic...
The CoolSiC™ 2000 V 12 mΩ SiC MOSFET in TO-247PLUS-4-HCC package has been designed to offer increased power density without compromising the system’s reliability even under demanding high voltage and switching frequency conditions. The low power losses of CoolSiC™ technology provide increased reliability thanks to the .XT interconnection technology in a 2000 V optimized package, enabling top efficiency in applications such as string inverters, solar power optimizer, EV charging and energy storage systems.Summary of Features● VDSS = 2000 V for high DC-link systems up to 1500 VDC● Very low switching losses● Innovative HCC package● 14 mm pin to pin creepage● 5.4 mm clearance distances● Benchmark gate threshold voltage, VGS(th) = 4.5 V● Robust body diode for hard commutation● XT interconnection technology for best-in-class thermal performance● Improved humidity robustness Benefits● High power density● Excellent reliability● Highest efficiency● Ease of designAp...