Core Viewpoint - The article discusses a significant find of a nearly new Ninebot electric scooter controller purchased for only 28 yuan, highlighting its impressive build quality and components [7][9][78]. Group 1: Product Overview - The controller model ZWK048020A was noted for its excellent condition and recent manufacturing date of November 2024, suggesting minimal usage [9]. - The controller features a power control architecture with a metal base and a separate control board, which enhances thermal management and reduces manufacturing complexity [78]. Group 2: Component Analysis - The power board contains 12 MOSFETs from Silan Micro, specifically the SVG105R4NS, rated at 100V and 120A, with a low on-resistance of 5 milliohms [32]. - The control board utilizes an AT32F415CCT7 microcontroller from Aotule, and includes two TLV9084 chips from Texas Instruments for current sampling [62][64]. - The controller employs a CAN bus system, which limits its usability across different vehicles, contributing to its low resale value [66]. Group 3: Design Features - The controller's design includes robust protection for signal ports and a heavy metal casing, weighing approximately 1 pound, which is likely made of cast iron [72][78]. - The separation of the power and control boards allows for better heat dissipation and higher current handling, while also simplifying the design and reducing costs [78].

Group 1 - Jiangsu's power grid reached a historical peak load this summer, with the "super battery" independent energy storage station in Haizhou High-tech Zone ensuring electricity supply for enterprises and residents, dispatching 1.7 million kWh daily since July [1] - The Taizhou Feima Vehicle Parts Co., Ltd. invested 5 million yuan to upgrade automation equipment, achieving full-process automation and a daily output of 45,000 parts, expected to complete last year's total business volume within the first eight months of this year [1] - The Taizhou New Energy Industrial Park was upgraded to a provincial high-tech industrial development zone, focusing on high-end, intelligent, and green development to contribute to the goal of becoming a "trillion-dollar main city" [1] Group 2 - The Taizhou New Energy Industrial Park, established in 2010, transitioned from a traditional park to a modern one under the leadership of the "Jiulong Town + Haineng Group" model, achieving a qualitative upgrade from a municipal park to a provincial high-tech zone [2] - The park aims to build a "main and two special" industrial system, with a focus on new energy as a landmark industry, supporting the growth of equipment manufacturing and smart home industries through technological innovation [2] - The production line of the photovoltaic component junction box project at Shidi Photovoltaic Technology (Taizhou) Co., Ltd. is set to be operational by July 2024, with a rapid construction timeline of 315 days from land acquisition to production [2] Group 3 - Shidi Photovoltaic's Taizhou company, invested by Sichuan Shidi New Energy Co., Ltd., aims for an annual production capacity of 200 GW for photovoltaic component junction boxes, achieving over 95% automation in production processes [3] - The company is positioned to become the highest standard production base for junction boxes in the industry, providing reliable products for efficient photovoltaic systems [3] Group 4 - The Haizhou High-tech Zone has attracted several leading photovoltaic companies, including Jiangsu Longi and Haineng New Energy, covering downstream sectors of the industry chain, achieving "wall-to-wall supply" for industrial support [4] - Companies like Kangqian Machinery and Yulong Technology are leading in their respective fields, with Kangqian holding over 25% market share in precision GIS aluminum alloy castings and exporting to multiple countries [5] - The Haizhou High-tech Zone aims to enhance its development capabilities and foster a competitive ecosystem, focusing on nurturing specialized and innovative enterprises [6]