拆解Tesla Model 3逆变器，用了哪些芯片？

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].