MOSFET provides high power at low loss

摘要

BPN-junction diodes often have a dropout voltage of approximately 1.2V for silicon power diodes. That voltage drop causes power diodes to dissipate considerable power, resulting in a loss of efficiency in a power supply. In a photovoltaic panel with 120W of power and 24V nominal voltage, an antireturn diode may cause a power loss of 6W, or 5% of the managed energy. Moreover, the cost of developing a cooling system for dissipating the heat diodes may pose a problem.