Application and key technology of PCB reverse engineering in frequency converter maintenance and development
PCB逆向工程在变频器维修开发中的应用与关键技术

摘要

PCB逆向工程在变频器维修开发中具有重要价值，通过对电路板的结构、信号走向及功能模块进行精准还原，可在缺乏原始设计资料的情况下实现故障定位与功能优化。其应用不仅缩短了维修周期，也为开发替代方案提供技术支撑。关键技术包括电路板拆解与扫描、元器件识别、信号路径分析及软件辅助建模，这些手段能有效提升维修的准确性与效率。在实践中，结合逆向工程与故障机理研究，可实现从简单替换到性能优化的跨越，推动变频器维修开发的可靠性与经济性提升。

Abstract

PCB reverse engineering plays a vital role in inverter maintenance and development. By accurately reconstructing the structure, signal routing, and functional modules of circuit boards, it enables fault diagnosis and functional optimization without original design documentation. This approach not only shortens repair cycles but also provides technical support for developing alternative solutions. Key technologies include circuit board disassembly and scanning, component identification, signal path analysis, and software-assisted modeling—all of which significantly enhance repair accuracy and efficiency. In practice, integrating reverse engineering with failure mechanism research allows engineers to transition from simple replacements to performance optimization, thereby improving both reliability and cost-effectiveness in inverter maintenance and development.