Construa seu Próprio Miliohmímetro e Economize 💰 (DIY vs Comprar)

Have you ever needed to measure very low resistances, such as those in cables, shunt resistors, or motor windings, and realized that a standard multimeter isn't up to the task? That's exactly where the Milliohmmeter comes in, an essential piece of equipment for anyone working with electronics, electrical systems, and power testing. --------------------------------------------------------------------------------------- Follow the articles on the Power Electronics Blog. 👇👇👇 ✔️Power Electronics Blog: https://eletronicadepotencia.com/ --------------------------------------------------------------------------------------- Highlights of the video: 00:00 - Introduction 01:07 - How to measure resistance 01:51 - Constant current source 03:40 - Measurement with Kelvin connection 05:23 - Instrumentation amplifier 06:16 - Display 07:56 - Main power supply 09:42 - Auto power off 11:20 - Symmetrical source 14:25 - PCB layout 16:30 - Practical test --------------------------------------------------------------------------------------- In this video, I'll show you how a milliohmmeter works and, more importantly, how to design your own in a practical and affordable way. We'll cover the operating principle, the main circuit blocks, necessary components, and assembly tips so you can have your own working milliohmmeter without spending the price of commercial equipment. 👉 If you enjoy hands-on learning and want to have useful tools in your lab while saving money, this content is for you! ⚡ What you'll see in this video: ✅ What a milliohmmeter is and what it's used for ✅ How to accurately measure very low resistances ✅ Circuit operating principle ✅ Step-by-step milliohmmeter design ✅ Tips for assembling your own equipment and saving money 💡 This video is ideal for students, hobbyists, and professionals looking to expand their knowledge of applied electronics and instrumentation 📂 Files and simulations available to channel members — learn more at:    / @eletropowerlab