Aviva ABS Plastic 5V/1A AC-DC Adapter, Black, 90-300 V Ac

Aviva ABS Plastic 5V/1A AC-DC Adapter, Black, 90-300 V Ac
An AC to DC converter (often called a rectifier) is an electronic device or circuit that changes Alternating Current (AC)—which reverses direction periodically—into Direct Current (DC), which flows in only one direction. It is essential for powering modern electronics, as electrical wall outlets deliver AC, but devices like phones and laptops require DC.

• Step-Down (Transformer): Reduces the high-voltage AC from the wall outlet (e.g., 220V) to a much lower, safer voltage for the device. 
• Rectification (Diodes): Uses components called diodes to block the negative half of the AC wave, forcing the current to flow in a single (but pulsating) direction. 

• Smoothing and Regulation (Capacitors & Regulators): The pulsating DC is smoothed out by capacitors to remove “ripples”. Finally, a voltage regulator ensures a steady, constant DC output so sensitive electronics aren’t damaged