Why/how do things still use electricity when they are turned off but plugged in (or just plugged in like a charger not connected to anything)? Where does the electricity go?
In: Technology
Some things need to be able to turn by remote control, like TV’s, so they need a little bit of power to keep looking for the ON signal. Chargers don’t have an on-switch, so they need to always have 5V DC available at the USB side for whenever a phone is plugged in. That means the AC to DC converter part of the circuitry needs to be engaged all the time.
The one that takes a lot of power when it is “off” is the DVR or cable box. At least the one I have uses as much power when it is off as when it is on. It just turns off an LED but everything keeps running. It monitors the channel guide information which comes in from the satellite dish all the time, and of course when a show comes on that needs to be recorded, it records it. And when you turn on the TV and DVR, you already have history built up, so you can back up and play video from before you turned on the set.
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