Considerações IMPORTANTES sobre o uso de CAPACITORES ELETROLÍTICOS na Eletrônica de Potência

Use of Electrolytic Capacitors in Power Electronics In this video, I teach you how to correctly choose an electrolytic capacitor to avoid premature failures in power electronics projects. Supporting materials: ✔️ Complementary article: https://eletronicadepotencia.com/capa... ✔️ EPCOS/TDK manual: https://www.tdk-electronics.tdk.com/d... ✔️ Jianghai manual: https://jianghai-europe.com/wp-conten... ✔️ Article - electrolytic capacitors associated with film capacitors: https://advanced-conversion.com/wp-co... ✔️ Simulation files: https://drive.google.com/file/d/1hK6W... ---------------------------------------------------------------------------------------------------------------------------- Invest in your knowledge: 👉 Altium Designer Course (Learn from scratch): http://bit.ly/curso-de-Altium 👉 General Electronics Course: http://bit.ly/curso-EletronicaGeral​ 👉 Cell Phone Repair Course: https://bit.ly/manutencaoDeSmartphones 👉 Course of MOSFET Transistors (Theory and Application): https://bit.ly/transistores-mosfet ---------------------------------------------------------------------------------------------------------------------------- Recommended Books: 📚 Power Electronics: https://amzn.to/3roptWC 📚 Power Electronics - Circuit Analysis and Design: https://amzn.to/3tD4F09 📚 Power Electronics - Devices, Circuits and Applications: https://amzn.to/3rvVRqd 📚 Power Electronics - Fundamentals, Concepts and Applications: https://amzn.to/3GVIypT 📚 Embedded Systems Programming: https://amzn.to/3qDbBsk 📚 Embedded Systems - Hardware and Firmware in Practice: https://amzn.to/3fyVtSn 📚 Operational Amplifiers and Active Filters: https://amzn.to/33M40yG 📚 Developing Electronic Projects in Brazil: https://amzn.to/3FDpbA7 ---------------------------------------------------------------------------------------------------------------------------- If you want to learn more about Power Electronics and other topics in Electrical Engineering, follow me on Instagram and check out the technical articles on the Power Electronics Blog. 👇👇👇 ✔️Power Electronics Blog: https://eletronicadepotencia.com/ ✔️Instagram: @eucaiomoraes ---------------------------------------------------------------------------------------------------------------------------- Highlighted parts of the video: 00:00 - Opening 00:14 - Introduction to electrolytic capacitors 00:55 - Examples of electrolytic capacitor applications 02:23 - Failures in electrolytic capacitors 02:51 - Equivalent model of an electrolytic capacitor 04:58 - Analysis of current ripple in electrolytic capacitors 09:30 - How to consider current ripple in the design 12:28 - Numerical design example 16:37 - Analysis of the lifespan of an electrolytic capacitor 18:50 - Strategy to increase lifespan 21:40 - Summary of Content ---------------------------------------------------------------------------------------------------------------------------- Electrolytic capacitors are widely used in power converters, mainly to form DC buses, in order to balance the instantaneous energy differences between the source and the load and to minimize voltage ripple. Some examples of applications of electrolytic capacitors include battery chargers for electric vehicles, photovoltaic inverters, uninterruptible power supplies (UPS), switched-mode power supplies in general, among others. Despite their importance, electrolytic capacitors are the main cause of failures in switched-mode power converters. And one of the reasons why these components cause so many failures is the temperature rise. To avoid excessive temperature increase in electrolytic capacitors (and consequently increase their lifespan), it is necessary to connect them in parallel to better share the current. In this video you will learn how to correctly design and choose electrolytic capacitors based on current ripple and lifespan. I hope the content is useful to you. Big hug, Caio Moraes.