This ac power adapter 12V 3A employs latest technologies to achieve excellent regulation, high power density and safety with good EMI performance. The universal 12V 3A power adapter provides high conversion efficiency, high PF and low total harmonic distortion (THD) over the universal input voltage. The AC/DC power adapter 12V is flyback topology based with green-mode power-saving operation, enables low standby power and compact design. The ac adapter output 12V 3A provides both constant voltage regulation and over-current protection. The 12V 3A power adapter features multiple protection functions to guarantee safe operation and reliability including OCP,OVP,OLP..