SMPS High-Efficiency Layout Tips for Indian Makers
🔍 The Problem: Efficiency Loss in SMPS Layouts
Switch Mode Power Supplies (SMPS) are compact and efficient—but a poor PCB layout can cause high switching losses, overheating, and EMI issues. Many hobbyists overlook layout optimization, leading to unstable performance.
🔧 The Solution: Optimize Your PCB Layout
To ensure maximum efficiency, keep high-current paths (like those between the inductor, MOSFET, and output capacitor) as short and wide as possible. Minimize ground loop areas and place decoupling capacitors close to the IC pins. For high-frequency switching, layout is just as critical as the components themselves!
⚙️ Practical Example :
Say you’re designing a 12V to 5V buck converter for a DIY robotics controller. If your input capacitor is too far from the switching IC, voltage spikes occur. By re-routing traces and placing the capacitor closer, ripple drops and efficiency improves by over 10%.
🧮 Sample Calculation :
If your converter handles 2A and your MOSFET’s Rds(on) is 50mΩ:
Power loss = I² × R = 2² × 0.05 = 0.2W
Now switch to a lower Rds(on) MOSFET of 20mΩ:
Loss = 2² × 0.02 = 0.08W → 60% reduction in heat loss!
🛒 Product Suggestion :
Use quality, Made in India components to build efficiently:
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