Você vai projetar qualquer conversor com este CI PWM versátil e barato
In this video, you'll learn in detail how the UC3842 IC works, widely used in current-mode switching power supplies. --------------------------------------------------------------------------------------- Support Materials 👇👇👇 ✔️ Video on PWM Modulation: • MODULAÇÃO PWM | Entenda como funciona e co... ✔️ Video on Gate Drivers Part 1: • Tudo que você queria saber sobre Gate-Driv... ✔️ Video on Gate Drivers Part 2: • Tudo que você queria saber sobre Gate-Driv... ✔️ Video on Switching Power Supplies: • Além das Especificações: Análise Detalhada... --------------------------------------------------------------------------------------- Follow the articles on the Power Electronics Blog. 👇👇👇 ✔️Power Electronics Blog: https://eletronicadepotencia.com/ ✔️Instagram: @eucaiomoraes --------------------------------------------------------------------------------------- Highlights of the video: 00:00 - Opening 00:23 - Main features and pinout 01:57 - UC3842 electrical specifications 03:08 - UC3842 operating principle 05:33 - Calculation of external components 10:00 - Test circuit assembly 10:44 - Members' area 11:49 - Prototype presentation 13:18 - Practical results 14:04 - Main applications of the UC3842 -------------------------------------------------------------------------------------- The UC3842 is one of the most widely used integrated circuits for current-based PWM control in switching power supplies. Compact, robust, and requiring few external inputs, it offers key features for efficient control of converters such as flyback, forward, buck, and boost. This IC is ideal for offline applications and sources with isolated or non-isolated topologies, and is widely adopted in industrial power supply designs, chargers, inverters, and much more. In this video, I explain clearly and practically: ✅ How the UC3842 works internally ✅ How to interpret its main electrical specifications ✅ How to calculate external components (RT, CT, sense resistor, compensation) ✅ And how to test the circuit directly on the bench with real waveforms 🎁 Channel members have access to exclusive materials, such as: Simulation files Technical summary Diagrams and spreadsheets 📺 Watch now and master the UC3842 in your projects!
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