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 拆解Tesla Model 3逆变器,用了哪些芯片?
 芯世相· 2025-09-12 04:31
 Core Viewpoint - The article focuses on the disassembly and analysis of the Tesla Model 3 inverter, highlighting its simplified structure and engineering optimization approach.   Group 1: Inverter Structure Characteristics - The Tesla Model 3 inverter is noted for its simple structure compared to similar products, reflecting an engineering optimization mindset [3]. - The inverter can be divided into key components such as control board, gate driver board, current sensors, thermal pads, insulation sheets, film capacitors, busbars, power semiconductors, and cooling fins, with a clear layout and assembly logic [5].   Group 2: Key Component Functions and Design Analysis - **Film Capacitor**: Manufactured by Nichicon, it has a rated voltage of 430VDC and a capacity of 550μF, used for electromagnetic interference suppression and stabilizing DC voltage [17]. - **Busbars**: Made of high-purity copper, the negative side busbar has a copper content of 95.26%, ensuring low-loss current transmission. The design allows for future current capacity upgrades, showcasing modular design thinking [23]. - **Power Semiconductors**: Utilizes SiC FETs (STGK026) for high-frequency switching and low conduction loss, arranged in a textbook layout for optimal performance [30]. - **Gate Drivers**: Six STGAP1AS driver ICs are used, with additional buffers to enhance driving signals, ensuring orderly switching of power devices [34]. - **Microcontroller**: The TI TMS320F28377DPTPQ serves as the control core, integrating energy conversion algorithms and fault diagnostics [37]. - **Current Detection**: Features a high-voltage sensor for two-phase current detection, simplifying hardware design while maintaining accuracy [40]. - **Cooling Structure**: The inverter employs a cooling system with high thermal conductivity to efficiently dissipate heat from the power semiconductors [41].   Group 3: Disassembly Summary and Outlook - The Tesla Model 3 inverter embodies the design principle of "simplicity is optimal," reducing production and maintenance costs through simplified component layouts while ensuring reliability with high-performance components [43]. - The PCB design, shaped like a map of the United States, adds a creative touch to the industrial product, although it does not enhance functionality [44].
 14份料单更新!出售LATTICE、SKYWORKS、ADI等芯片
 芯世相· 2025-09-12 04:31
 Core Insights - The article discusses the challenges faced by companies dealing with excess inventory of electronic components, highlighting the financial burden of storage and capital costs associated with unsold stock [1] - It emphasizes the services provided by a company called "Chip Superman," which has successfully served 21,000 users and offers rapid transaction completion for inventory clearance [2][8]   Group 1: Inventory Management - Companies are incurring significant costs due to excess inventory, with monthly storage and capital costs amounting to at least 5,000, leading to potential losses of 30,000 after six months [1] - The article lists various electronic components available for sale, indicating a strategy to clear out surplus stock at discounted prices [5][6]   Group 2: Service Offerings - "Chip Superman" has a substantial inventory, boasting over 50 million chips across 1,000+ models and 100 brands, with a total inventory value exceeding 100 million [8] - The company operates a smart warehouse of 1,600 square meters and has an independent laboratory in Shenzhen for quality control of each component [8]   Group 3: Market Demand - The article also mentions specific components that are in demand, indicating a proactive approach to sourcing and selling electronic parts [7] - The company encourages users to utilize their platform for better pricing and inventory management solutions [9]
 15份料单更新!出售Microchip、TI、松下等芯片
 芯世相· 2025-09-11 04:36
 Core Viewpoint - The article discusses the challenges and opportunities in managing excess inventory of electronic components, highlighting the need for effective promotion and sales strategies to mitigate financial losses from storage and capital costs.   Group 1: Inventory Management - A significant amount of obsolete inventory, totaling 100,000 units, incurs monthly storage and capital costs of at least 5,000, leading to a potential loss of 30,000 over six months if not sold [1] - The company offers discounted sales for excess inventory, aiming to clear stock quickly, with transactions completed in as little as half a day [2][8]   Group 2: Inventory Listings - The article provides a detailed list of available electronic components for sale, including various models from brands like Microchip, TI, and ST, with quantities ranging from 600 to 90,000 units [5][6] - Specific models listed include the Microchip ATMXT2952T2-C2UR057 with 71,000 units and the VISHAY BAV103-GS08 with 170,000 units, indicating a diverse inventory [5][6]   Group 3: Demand for Components - There is an active demand for specific components, with requests for large quantities of models from brands like Toshiba and Qualcomm, indicating a robust market for certain electronic parts [7] - The company emphasizes its capability to meet these demands through its extensive inventory and quick transaction processes [8]   Group 4: Company Infrastructure - The company operates a 1,600 square meter smart storage facility with over 1,000 models and a total inventory of 50 million chips, valued at over 100 million [8] - An independent laboratory is established for quality control, ensuring that each component meets industry standards before sale [8]
 文晔、大联大,最新营收上涨!
 芯世相· 2025-09-11 04:36
我是芯片超人花姐,入行20年,有50W+芯片行业粉丝。 有很多不方便公开发公众号的, 关于芯片买卖、关于资 源链接等, 我会分享在朋友圈 。 扫码加我本人微信 近日,全球芯片分销商TOP2文晔和大联大陆续发布8月份财报: 大联大 8月营收创历年同期次高 达 788.2亿元(新台币,下同) ,月增3%,年减7.1%; 文晔 8月合并营收达 1,000.86亿元 ,月增6.5%,年增22.7%。 本文将分析文晔和大联大近期营收的具体情况以及今年以来的表现。 01 与7月相比 大联大、文晔,营收皆上涨 受惠生成式AI迅速发展,推动相关传统及AI服务器、电源、PC、NB及存储器迭代更换等电子零组 件需求增加等因素影响下,大联大控股2025年8月营收创历年同期次高达 788.2亿元 ,相较上月 新台币765.6亿元, 月增3% ,相较去年同期新台币848.5亿元, 年减7.1% 。 在此前 法说会 上 , 大联大 展望 三季度 ,以新台币29.5元兑1美元为汇率假设基础,预估营收 将落在 2,450亿至2,650亿元间 ,约季减2.1%至季增5.8% ,毛利率 3.7-3.9%, 营益率 为 1.91-2.09% 。  ...
 Silicon Labs芯片,最近为啥缺了?
 芯世相· 2025-09-10 06:11
 Core Viewpoint - The article discusses the current shortage and price increase of specific chips from Silicon Labs, particularly in the context of the growing demand in the drone market, while also providing insights into the company's performance and strategic direction in the IoT sector [3][4][30].   Group 1: Chip Shortage and Demand - Several distributors have reported a slight shortage of certain Silicon Labs models, with demand gradually increasing since April 2023, leading to a price increase that stabilized until July [5][15]. - The main focus of this shortage is on the MCU chips used in drone electronic speed controllers (ESC), particularly the EFM8 BB5 and EFM8 BB2 series [5][12]. - The EFM8BB51F16G-C-QFN20R chip's price has doubled from approximately 3 yuan to around 6 yuan [5]. - The shortage is not widespread but concentrated in specific applications, particularly in the drone sector, with expectations for supply to gradually improve by September [13][16].   Group 2: Company Overview and Performance - Silicon Labs, founded in 1996, specializes in low-power wireless connectivity and relies on foundries like TSMC and SMIC for chip production [18]. - The company is projected to generate $584 million in revenue for 2024, with 67% from distribution channels and 33% from direct sales, and 90% of revenue coming from outside the U.S., with 15% from China [18]. - Revenue has declined from over $1 billion in 2022 to $584 million in 2024, with gross margins decreasing from 64.3% in 2022 to 53.4% in 2024 [18][20]. - The company has seen a recovery in performance, with a 90% revenue increase compared to the low point in Q4 2023, driven by improved customer orders and inventory levels [20][21].   Group 3: Strategic Focus on IoT - Silicon Labs has strategically shifted its focus to the IoT market, divesting from its infrastructure and automotive business in 2021 for $2.75 billion, which previously contributed 42.3% of its revenue [25]. - The global IoT chip market is projected to grow significantly, with a forecasted CAGR of 13.5% from 2025 to 2032, indicating a substantial opportunity for Silicon Labs [26][27]. - The company aims to capture a significant share of the $10 billion IoT market, positioning itself for growth in a rapidly expanding sector [25][27].
 14份料单更新!出售RK、ON、ROHM等芯片
 芯世相· 2025-09-10 06:11
 Core Viewpoint - The article discusses the challenges and opportunities in managing excess inventory of electronic components, highlighting the need for effective promotion and sales strategies to mitigate financial losses from storage and capital costs [1].   Group 1: Inventory Management - A significant amount of excess inventory, specifically 100,000 units, incurs monthly storage and capital costs of at least 5,000, leading to a potential loss of 30,000 if held for six months [1]. - The company offers discounted sales for surplus inventory, aiming to clear stock quickly, with transactions completed in as little as half a day [2][9].   Group 2: Inventory Listings - The article provides a detailed list of available surplus electronic components, including various brands and models, with quantities ranging from 6,000 to 300,000 units for specific items [5][6]. - Notable inventory includes components from brands like ON, ROHM, and Nexperia, with a total inventory value exceeding 100 million [8].   Group 3: Demand for Components - The company is actively seeking to purchase specific components, indicating a robust demand for certain models, with quantities requested reaching up to 720,000 units for some items [7]. - This demand highlights the ongoing need for efficient supply chain management in the semiconductor industry [7].    Group 4: Operational Capacity - The company operates a 1,600 square meter smart warehousing facility with over 1,000 different models and a total stock of 50 million components, weighing approximately 10 tons [8]. - An independent laboratory is established in Shenzhen for quality control, ensuring that each component undergoes thorough inspection [8].
 12份料单更新!出售高通、TI、ADI等芯片
 芯世相· 2025-09-09 08:18
 Core Insights - The article discusses the challenges and opportunities in managing excess inventory of electronic components, particularly in the semiconductor industry. It highlights the financial burden of holding excess stock and the need for effective promotion strategies to sell these materials [1][2].   Group 1: Inventory Management - A significant amount of excess inventory, specifically 100,000 units, incurs monthly storage and capital costs of at least 5,000, leading to a potential loss of 30,000 if held for six months [1]. - The company offers discounted sales on surplus materials, indicating a strategy to clear inventory quickly, with transactions completed in as little as half a day [2][9].   Group 2: Product Offerings - The article lists various electronic components available for sale, including models from brands like STM, Sony, Qualcomm, and TI, with quantities ranging from 504 to 186,400 units [5][6]. - The total inventory includes over 5,000,000 chips across more than 1,000 models, with a total value exceeding 100 million [8].   Group 3: Customer Engagement - The company has served a cumulative total of 20,000 users, emphasizing its established presence in the market and the effectiveness of its sales strategies [9]. - The article encourages potential buyers to explore their offerings through a mini-program or a web portal, indicating a focus on digital engagement for sales [10][11].
 买芯片拿不回定金,上“某鱼”竟然有用!
 芯世相· 2025-09-09 08:18
 Core Viewpoint - The article discusses the challenges faced by chip distributors in recovering unpaid debts and highlights the potential solutions, including legal actions and utilizing second-hand platforms for debt recovery [4][11][18].   Group 1: Debt Recovery Challenges - Chip distributors often encounter situations where suppliers refuse to return deposits or delay payments, leading to significant financial strain [4][6]. - Common scenarios include suppliers having the funds but unwilling to pay, and those genuinely lacking the funds due to upstream payment issues, resulting in complex debt situations [7][9][11].   Group 2: Legal and Practical Solutions - Utilizing legal services, such as hiring a lawyer to draft demand letters and initiate lawsuits, can be effective in recovering debts [13][14]. - The process of asset preservation through court orders can prevent debtors from transferring or hiding assets, thereby increasing the chances of debt recovery [5][14]. - Successful case studies illustrate that persistence and legal action can lead to the recovery of owed funds, even if it takes considerable time [14][18].   Group 3: Key Considerations for Debt Recovery - Maintaining proper documentation and evidence is crucial for legal proceedings, as it significantly influences the outcome of debt recovery efforts [15][17]. - Understanding the debtor's financial situation, including their income sources, can help in strategizing the recovery process [16][17]. - Encouraging debtors to acknowledge their debts formally, such as through written agreements, can provide legal leverage in future recovery efforts [17].
 科创板芯片公司半年业绩出炉;两大巨头延长生产DDR4;沪硅产业拟70亿元重大资产重组…一周芯闻汇总(9.1-9.7)
 芯世相· 2025-09-08 04:24
 Key Points - The semiconductor industry is experiencing significant growth, with 120 integrated circuit companies reporting a total revenue of 1600.43 billion yuan in the first half of the year, marking a 24% year-on-year increase [15] - The U.S. government plans to impose tariffs on semiconductor imports from companies that do not relocate production to the U.S., while companies that invest in U.S. manufacturing may be exempt from these tariffs [10] - The DRAM market is seeing a resurgence, with overall revenue for Q2 reaching 31.63 billion USD, a 17.1% increase quarter-on-quarter, driven by rising contract prices and increased demand [13] - The Chinese integrated circuit design revenue for the first seven months of the year reached 251.1 billion yuan, reflecting an 18.5% year-on-year growth [12] - Major companies like TSMC and SK Hynix are extending the production of DDR4 memory chips due to high demand, despite previous plans to phase them out [20] - The AI data center chip market is projected to grow significantly, with a forecasted market size of 207 billion USD in 2025, representing a 67% increase from the previous year [24]   Industry Events - The U.S. Trade Representative has extended the exemption for tariffs on GPUs and related PC hardware imported from China until November 29, 2025, allowing continued import without high tariffs [11] - The Ministry of Industry and Information Technology in China has launched initiatives to integrate technology and finance in the semiconductor industry, aiming to support long-term investments in hard technology [12] - Companies like Cadence are making strategic acquisitions, such as the planned acquisition of Hexagon's design and engineering division for 3.16 billion USD, to expand their product offerings [18]   Company Developments - Hu Silicon Industry announced a major asset restructuring plan involving the acquisition of stakes in several companies, with a transaction amount of 7.04 billion yuan [14] - Moore Threads is seeking to raise 8 billion yuan through an IPO to fund the development of new AI and graphics chips [15] - Nanya Technology reported a significant revenue increase of 141.32% year-on-year in August, driven by improved pricing conditions for DDR4 memory [16]
 8份料单更新!出售TI、ST、英飞凌等芯片
 芯世相· 2025-09-08 04:24
 Core Insights - The article discusses the challenges of managing excess inventory in the semiconductor industry, highlighting the financial burden of storage and capital costs associated with unsold materials [1] - It promotes a service called "Chip Superman," which has served 20,000 users and offers quick transactions for excess inventory, emphasizing the urgency of clearing stock [2][9]   Inventory Management - The article mentions that holding 100,000 units of excess inventory incurs at least 5,000 in monthly storage and capital costs, leading to a potential loss of 30,000 after six months [1] - "Chip Superman" offers a platform for selling excess inventory, claiming transactions can be completed in as little as half a day [2][9]   Inventory Listings - A detailed list of available excess inventory is provided, including various brands and models, with quantities ranging from 1,000 to 610,000 units for specific items [5][6] - Notable items include ST's STM32F031F4P6TR with 610,000 units and TI's TLV2171IDR with 85,000 units, indicating a diverse range of products available for sale [5][6]   Demand for Components - The article also includes a request for specific components, indicating ongoing demand in the market, with quantities requested for various models reaching up to 180,000 units [7] - This highlights the active nature of the semiconductor market, where both supply and demand are critical for operational efficiency [7]   Warehouse and Quality Control - "Chip Superman" operates a 1,600 square meter smart warehouse with over 1,000 models and a total inventory of 50 million chips, valued at over 100 million [8] - The company also has an independent laboratory in Shenzhen for quality control, ensuring that each component meets industry standards [8]