Switching power supplies are much more efficient (80-90%) compared to 40-50% for linear. I would purchase a switching power supply. Linears are simpler, easier to work on and build. But if your purchasing, go with the switching.Hi,
oh my gosh, I just wanna purchase a dual output power supply, now I see some that are marked LINEAR or SWITCHING. Which one is better?
That's true and most switched mode power supplies and indeed linear power supplies have a poor power factor.actually in mfg efficiency is the law or soon will be depending on where you live.
Most countries are on their way to requiring, if they do not already, PFC and sub 1W standby on ALL consumer goods.