Understanding AC/DC power supply efficiency – the hot topic

Understanding AC/DC power supply efficiency – the hot topic

The drive for smaller power supplies goes hand-in-hand with a need for greater efficiency. There's a direct relationship here because the smaller the power unit, the smaller the area available for dissipating heat through conduction and convection. Through both measurement and calculation, XP Power has developed a guide to the maximum power loss that can be tolerated for a given size of power supply, based on using convection cooling. ■