| Title |
Design of High Power Density AC/DC Adapter |
| DOI |
10.6113/TKPE/2010.15.4.259 |
| Keywords |
AC/DC adapter; High power density; Boundary conduction mode; LLC resonant converter |
| Abstract |
The proposed method offers an improved control method for high power density AC/DC adapter by using more energy efficient electrical equipments. Power factor corrector (PFC) topology is based on boost topology with boundary conduction mode (BCM) and DC/DC topology is based on LLC resonant converter, which helps to reduce size of the semiconductor and the magnetic devices. Test results with 85W AC/DC adapter (18.5V/4.6A) design shows that the measured efficiency is 90% at 90Vrms input voltage with power density of 36W/in³. It also shows low no load power consumption of about 0.5W. |