This wall mounted 7.5v 3a dc power adapter provides a high-power-density and cost-effective solution for a variety of application field. The AC DC power adapter operates at a high switching frequency to achieve high efficiency in all load conditions, with a low total standby consumption and low output ripple and nose. Full protection functions improve the reliability including OCP, OVP, OLP, and effective thermal management enhances reliability further, enables the 7.5V ac dc adapter power adapter to operate at full power at higher ambient temperatures. The wall type 7.5v AC DC power adapter family consists of lower current rating models include 7.5v 2a dc power adapter and 7.5v 1a power adapter.