This wall mounted switching adapter 12V 1.5A uses primary-side regulation (PSR) to achieve precise voltage and current regulation without using an optocoupler at a secondary site, thus to minimize the cost and optimize energy efficiency performance. The 12V 1.5 amp AC adapter provides a high-power-density and cost-effective solution for a variety of application field. The 12 volt switching adapter operates at a high switching frequency with a low total standby consumption and low output ripple and noise. The dve switching adapter 12V is equipped with full protection functions to improve the reliability including OCP, OVP, OLP. Effective thermal management enhances reliability further, allows the 12V 1.5A power adapter to operate at full power in higher ambient temperatures.