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Transformer VS Switched-Mode Power Supply (SMPS) & Flat Power Su…

Transformer VS Switched-Mode Power Supply (SMPS) & Flat Power Su...

Shout out to all my supporters who point me in the right direction.
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Turns out that a conventional transformer draws a substantial amount of power when plugged in. Without a load of course. So for an always on application like my flat power supply this would've been a horrible idea. There are a lot of calculations included in the video. The newer switched-mode power supplies almost don't waste electricity while idling. I'm so thankful that my granddad cleared this up.

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  1. Date: August 31, 2018 at 19:55
    Author: Hyper Hektor

    there is a downside of SMPS, they age relative quickly (avg 2-5 years). I counter that by switching them completly off , i use a power socket with a red switch . Especially PC powersupplies are not that efficient like you showed here. If they are on the net they are basicly in sleep mode but their capacitors are still charged/charging . The capacitors are the parts which will fail.
    They can be replaced , but makes only sense on expensive / rare devices.
    I repared several Dell TFT's by replacing 2 capacitors of their internal powersupply.
    I used a capacitor-meter to confirm that they are defective. sometimes you can see it.(the top is not flat but rounded)

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