Hello connectors , I have recently completed a mini project - H Bridge of motor driver , ⚡️ I commenced with breadboard connections , with a basic circuit diagram I made connections and instead of motor I have used LED to check the output .✅ Components used : Led PNP and NPN transistor ( each 2) Resistor (6) 📌Transistors : • Act as electronic switches to control the current path. • Four are arranged in an H-shape to form the H-Bridge. • When certain pairs are switched ON, current flows through the motor in one direction (forward), and when the opposite pair is ON, current flows in the other direction (reverse). 📌Resistors : • Used at the base of each transistor. • They limit the base current going into the transistors, protecting them from damage. • Ensure proper switching (not too much or too little current). 🔹 How They Are Used (Working Principle) This H-Bridge has two control inputs: A and B. 📌• Case 1: A = HIGH, B = LOW • Left-top transistor (Q1) and Right-bottom transistor (Q4) turn ON. • Current flows VCC → Q1 → Motor → Q4 → Ground. • Motor rotates in one direction (say, clockwise). 📌• Case 2: A = LOW, B = HIGH • Right-top transistor (Q2) and Left-bottom transistor (Q3) turn ON. • Current flows VCC → Q2 → Motor → Q3 → Ground. • Motor rotates in the opposite direction (anticlockwise). 📌• Case 3: A = B = LOW • All transistors OFF → Motor stops. 📌• Case 4: A = B = HIGH • Risk of short circuit (both top and bottom of one side conduct) Instead of Motor I have used LED’s, ✅This project helped me to understand deeply about the working of H bridge and the advantages of them . 🎖️ through this project , I strengthened my foundation . #electronics #miniprojects #importanceofHbridge #engineering #electrical
Completed a mini project on H Bridge motor driver with LED
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Case Study: Taming Annoying Acoustic Noise in Power Modules 🔇 A client's industrial power module was emitting a high-pitched "singing" or buzzing sound under load—a classic case of inductor acoustic noise. This phenomenon, often caused by magnetostriction and winding vibration, is more than just an annoyance. It signals energy loss and can raise reliability concerns. Our engineered solution focused on the root cause: ✅ Material Science: Switched to a specialized ferrite core composition with lower magnetostriction. ✅ Advanced Process: Implemented vacuum impregnation with a high-performance epoxy to securely lock the windings and dampen vibration. ✅ System-Level Synergy: Worked with the client's team to slightly adjust the switching frequency, moving it away from the sensitive audio range. The result? Audible noise was eliminated, and the project moved smoothly into high-volume production. Have you encountered similar "singing" inductors in your #UPS, #PowerSupply, or #SolarInverter designs? What was your solution? Share your experiences in the comments! #Engineering #CaseStudy #Magnetics #PowerElectronics #EMC #HardwareDesign #Reliability #Manufacturing #[IKP electronics]
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