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What is the basis for the default efficiency estimates?

April 26, 2017basis Default efficiency estimates

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What is the basis for the default efficiency estimates?

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Default efficiency is based on the efficiency curves presented in AN-21 (TOPSwitch-II), AN-26 (TOPSwitch-FX) and AN-29 (TOPSwitch-GX). TinySwitch-II efficiency is estimated and based on the evaluation of actual power supplies. These curves estimate power supply efficiency given AC input range and output voltage. For output voltage between 5 V and 12 V, efficiency is estimated using linear interpolation. PI Expert estimates efficiency deviation for outputs outside the 5 V to 12 V range.