Nowadays the percentage of power electronic devices, which use shunts for sensing of electrical signals, is increasing significantly. This method of measurements is simple, reliable and low-cost, however it requires careful elaboration of schematics and meticulous design of printed circuit boards. The author provides a detailed insight into the design of power converter Printed Circuit Boards (PCBs) with shunt-based sensing circuits and provides recommendations on improvement of signal measurements. He analyses the most popular design mistakes and illustrates their impact on measuring signals, which can be used for mistake localization. This paper demonstrates that the properly designed schematic can be turned into poorly operating PCB and recommends measures to avoid it. The author shares his more than 20-years experience and illustrates his statements with examples from real life. Although this paper is mainly addressed to young engineers, it could also be useful for experienced researchers, who work in neighboring areas and do not gain experience in PCB design.

中文翻译：

---

带分流传感器的电源转换器 PCB 设计中的建议和典型错误


如今，使用分流器来感测电信号的电力电子设备的比例正在显着增加。这种测量方法简单、可靠且成本低，但需要仔细阐述原理图和印刷电路板的精心设计。作者详细介绍了具有分流传感电路的电源转换器印刷电路板 (PCB) 的设计，并提供了有关改进信号测量的建议。他分析了最常见的设计错误，并说明了它们对测量信号的影响，可用于错误定位。本文论证了正确设计的原理图可能会变成运行不良的 PCB，并提出了避免这种情况的措施。作者分享了他20多年的经历，并用现实生活中的例子来阐述他的说法。虽然本文主要针对年轻工程师，但对于在邻近地区工作且没有 PCB 设计经验的经验丰富的研究人员也可能有用。