Wx-dc12003 Schematic //top\\

A Schottky diode and filter capacitor smooth the output. Some versions include an optocoupler for voltage feedback to keep the 5V steady. Design Variations

Vref = 1.25V, R1=3.3k, R2=1k → Vout = 1.25*(1+3.3/1) = 1.25*4.3 = 5.375V (within 5% tolerance). wx-dc12003 schematic

: On the secondary side, a single Schottky diode and a filter capacitor provide a steady 5V DC output at approximately 0.7A to 1A Philosophical and Practical Critique A Schottky diode and filter capacitor smooth the output