Onde a Eficiência do seu Conversor DC-DC se Perde? (Guia Técnico)

How to Increase the Efficiency of Your DC-DC Converter: Capacitors, Magnets, and Semiconductors A reasonable DC-DC converter design delivers around 85% efficiency. But it's possible to go much further than that, and the difference lies in how you handle each source of loss in your circuit. In this first part, we'll get straight to the point: where the energy disappears and what to do to recover it. --------------------------------------------------------------------------------------- ✔️ Master DC-DC converter design: https://curso-dc-dc.com.br/ ✔️ Turn your idea into an electronic project: https://ep-tronix.com.br/ ✔️ Follow the articles on the Power Electronics Blog: https://eletronicadepotencia.com/ --------------------------------------------------------------------------------------- Highlighted parts of the video: 00:00 - Opening 01:00 - Context 03:08 - Losses in DC-DC converters 07:07 - How to reduce losses in capacitors 09:19 - How to reduce losses in magnets 13:07 - How to reduce losses in MOSFETs 15:38 - How to reduce losses in diodes --------------------------------------------------------------------------------------- Efficiencies above 98% are already a reality in well-executed projects — and it's not magic, it's component selection and design strategy. In this video, I present the classification of losses in DC-DC converters (constant, linear, and quadratic), explain why maximum efficiency does not occur at nominal power, and delve into the three main sources of loss: capacitors, magnets, and power semiconductors. All based on practical examples using the buck converter as a reference. 📌 What you will learn: ✅ Strategies to reduce ESR in capacitors using parallelism and aluminum polymer ✅ How to minimize losses in the copper and core of magnets, including the choice between ferrite and metal powder ✅ How to select MOSFETs using the figure of merit FOM = RDSon × QG to balance conduction and switching losses ✅ Why Schottky and SiC are the best options for diode replacement in high efficiency 📂 Files and simulations available for channel members — learn more at:    / @eletropowerlab   #PowerElectronics #DCDC #ElectronicEngineering #PCBDesign #SwitchingPowerSupplies