Full-Bridge Rectifier Behavior with Differential Measurements with LED Visualization скачать в хорошем качестве

Full-Bridge Rectifier Behavior with Differential Measurements with LED Visualization

Summary: This video demonstrates a full-bridge rectifier built from four LEDs and examines its output with differential oscilloscope measurements. It also shows how the capacitor and load influence the waveform and LED conduction patterns. Why This Matters: Full-bridge rectifiers appear in many supply stages where full-wave behavior and ripple characteristics are important. Seeing the conduction paths and charging pulses with LEDs helps clarify how component choices affect actual performance. Content covered in the video: • Full-bridge configuration using four LEDs, a 3,300-µF capacitor, a 100-ohm series resistor, and a 220-ohm load • Differential measurements of the generator output and rectifier output using the Analog Discovery • Demonstration of half-wave behavior when the bridge is removed • Capacitor charging without a load and the resulting staircase-like voltage increase • LED brightness changes as the capacitor charges and current decreases • Rapid voltage drop when the load is reinserted • Ripple reduction when the drive frequency increases from low frequency to 100 Hz