RoHS AC adapter is an environmentally friendly AC power adapter that restricts the use of certain harmful substances during the manufacturing process to reduce adverse effects on the environment and human health. With the continuous improvement of environmental awareness and the RoHS directive, RoHS communication adapters will be widely used and promoted in the future.

The working principle of the AC power adapter is based on the principle of electromagnetic induction. After passing through the power adapter, the AC power is first adjusted by the transformer to regulate the voltage, then converted into pulsating DC power through the rectification circuit, and finally removed from the DC noise through the filtering circuit to make the voltage more stable. Finally, the voltage regulator circuit completes precise control and regulation of the output voltage, and activates the protection circuit when necessary.