Electronics Basics #03 | Half-Wave Rectifier: Ideal + Silicon, V_DC = 0.318·V_m

Instructor: Dr. Süleyman Burak ÇELİK

Turning AC into DC with a single diode — the half-wave rectifier explained step by step. What we cover: • Why we rectify — every wall outlet is AC, but every chip inside a phone, laptop or TV needs DC • Ideal half-wave operation: positive half passes, negative half is chopped → V_DC = V_m/π = 0.318·V_m • Silicon half-wave: 0.7 V threshold shrinks the peak → V_DC ≈ 0.318·(V_m − 0.7) • Worked example V_m = 10 V: ideal gives 3.18 V, silicon gives 2.96 V (loss = 0.22 V) • Why low-voltage rectifiers use Schottky diodes (drop ≈ 0.3 V) Builds on the diode models from lesson #02. Next lesson moves to full-wave rectification — capturing both halves of the sine wave plus a smoothing capacitor for cleaner DC. 🌐 AcEdumy.com