The fast evolving large language models (LLMs), powered by generative pre-trained transformers (GPTs), have shown revolutionary potential to transform many fields beyond natural language processing. They generate new opportunities for innovation in engineering design and manufacturing. Design and manufacturing represent critical research domains where knowledge has always been deeply embedded in engineering designers, manufacturing engineers, and technicians. LLMs can analyze, retrieve, and generate vast amount of knowledge and concepts, presenting exciting possibilities for automating tasks such as design ideation, knowledge extraction, and specification generation in design and manufacturing. [...]

High-frequency buck converters need a fast transition of switching nodes (high dv/dt). Such high dv/dt, especially the positive one, can cause malfunction of a conventional pulse-triggered active-coupled (PTAC) level shifter that is used to control the high-side NMOS switch. In this work, we first discuss the dv/dt immunity of conventional PTAC level shifters. Subsequently, we propose a new scheme to block the noise current during the dv/dt sequence, allowing an almost full immunity to the positive dv/dt. With this scheme, the maximum dv/dt is determined by how well the circuitry is protected from the overvoltage during the dv/dt sequence. We design a 20-V buck converter with this level shifter, fabricated in 180-nm BCD process. Experimental results show it works correctly under a 67-V/ns dv/dt.