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Internal view of a solar inverter. Note the many large capacitors (blue cylinders), used to buffer the double line frequency ripple arising due to single-phase ac system.. A solar inverter or photovoltaic (PV) inverter is a type of power inverter which converts the variable direct current (DC) output of a photovoltaic solar panel into a utility frequency alternating current (AC) that can be ...
Stand-alone switched-mode power supply An adjustable switched-mode power supply for laboratory use. A switched-mode power supply (SMPS), also called switching-mode power supply, switch-mode power supply, switched power supply, or simply switcher, is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently.
In AD 362, the emperor Julian wrote in his Hymn to King Helios that the Agon Solis was held in late December, between the end of the Saturnalia and the New Year. [54] Julian says it is dedicated to Helios and the "Invincible Sun". [55] Most scholars therefore date the festival to December 25 and associate it with the Natalis Solis Invicti. [56]