Charge tablets wirelessly?

The hardware is now so good that it makes laptop laptops easy. What disturbs me personally only massively is primarily the batteries. Thereafter, the ever-increasing price.

Do you think tablets will soon be charged wirelessly like smartphones?

I hope that Blö-s-nn with the wireless charging soon disappears again.

The pure waste of energy.

First you have the simple Trafonetzteile banned because the efficiency was too bad, now worsens the efficiency again by wireless charging.

Background:

First, the grid power has to be transformed for the base, and then the energy is transmitted to the device by means of the transformer principle (transmitter coil in the base and receiver coil in the device). Since the device may still have a shell, there's still a certain distance between the two coils, which then also worsens the transmission.

The whole thing is just hyped because it is stylish.

In principle, you can charge everything wireless, even e-cars, the question is only makes sense and what dangers are then connected to the electromagnetic fields.

So I've never heard that transformer power supplies were banned. The stop builds something like that no longer, because all the semiconductor components of a switching power supply were at some point significantly cheaper than a thick transformer.

This is already done.

If not from home, you can retrofit.

The problem with inductive charging is the additional energy loss.

Somewhere you lose around 30% of the energy used for inductive charging. Basically, that would be fine, because even when charging by means of cable, these 30% are lost.

However, you have to add both, since the inductive loading area is also connected via cable.

Thus one gets somewhere on only 50% of the used energy, which comes from the socket. The rest "fizzles" unused.

I see it with the Wireless Store as well as Silverhead2010. You do not fill a bucket, in which you let half run beside it. That's just wireless charging. It wastes so much energy and yes it is not very harmful to the environment now, as it is still very low compared to other devices but the problem is that it is not efficient at all. And also takes much longer

I once worked with a manufacturer or Impoteur who has distributed such power supplies. We had to remove the entire transformer power supply from the program, because they had a too poor efficiency and because they do not turn off without connected consumers.

I think that it has to do with the European Energy Efficiency Directive. Since then is also regulated in how much energy devices may need in Stanby and the devices such as TVs or receivers may need to have an automatic shutdown or standby circuit.

These guidelines are relatively new to iirc, the switch to switched-mode power supplies should already have taken place beforehand, precisely because at a certain point they were considerably cheaper to manufacture.

In high-quality audio amplifiers are still Trafonetzteile in it, because you always have a high-frequency ripple on the output voltage in a switching power supply and you just do not want the audio amplifiers.

The rest "fizzles" unused.

R.I.P utility bill. 😂