Can a PC power supply be converted to 12v AC/DC input?
Hello everyone,
I want to convert my camper and so far everything runs via 12v.
To use my PC I would have to buy a 700W inverter that converts the power from 12V DC to 230V AC.
Of course I'm not a professional when it comes to this and I would give it to an electrician to solder etc. (I can solder but with power supplies it's a grey area).
PC power supplies convert 230V AC to 12V DC for the graphics card or processor, for example. My question is, is there any way to circumvent this by feeding 12V AC/DC into the power supply? For example, my battery module is 24V, but I can solder it to 12V; it's not a problem for me.
In the end, only 12v comes out of the power supply to the PC components anyway.
(No Ratings Yet)
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The 12 volts are only the nominal voltage in an on-board network, but in practice they can be up to 14 volts.
You cannot take the pure onboard voltage for a required pure and stable 12 volts. The ordering of a vehicle is also quite dirty and can also go up to 50 volts for some milliseconds.
No, there are much more tensions. From https://www.reichlt.de/pc-netzteile-c6199.html
With a laptop this would be easier, because there you only have to generate the one DC voltage of the external power supply. the rest is done in the laptop itself.
If you need an inverter to 230 VAC, take one for 24 volt input voltage, which has fewer conversion losses.
24V doesn’t sound wrong. Have also looked after whether there is a refrigerator for 24v and yes there is one:D
I think 24V sounds perfectly… which inverters are available from 24vDC to 230vAC? Which ones are good, so 1000W
Hello!
Maybe it would be an alternative to using a “PC” that only needs an input voltage of 5V. So could also be operated via a USB port?
There would be, for example, the relatively inexpensive Raspberry Pi K400 DE.
https://geizhals.de/raspberry-pi-400-kit-raspberry-pi-400-de-kit-a2414639.html
It should be quite useful for “working”, “surfing”, and other “small crane”.
Of course not for gaming.
And there are also PC monitors that can be operated directly with 12V.
https://www.beetronics.de/c-monitore/12volt
Only the prices for 16:9-TFTs from 19″ image diagonal… Well…
How about a “small” or “saving” notebook?
There are often also suitable 12V power supplies for battery operation.
And these batteries could then possibly also be charged via several solar cells.
But these are just a few theoretically possible ideas from me.
Greeting
Martin
Thank you, unfortunately I already need more performance as I will cut my trip in the caravan also videos and edit pictures. So it needs performance. I prefer desktop because the laptops always overheat and have less power than my desktop. From Razer Blade 2021 5900HX + RTX3070 to AMD 7900X and RTX3060ti.
Not quite inexpensive, but give it to me:
https://www.minipc.de/de/catalog/il/919
Surely there are more offers, pages, just googling accordingly, I tried it by “pc 12V input net part”.
An existing power supply will not be converted. U.A. simply because at 12V input the current strengths are far greater than at 100V to 240V
What could be done: For all required PC voltages, get individual converters and then switch them in parallel on the input side and on the output side with the respective standard connectors for the motherboard. What then falls away is switching on by bridge green with black.
However, it would also be possible to obtain converters which can be switched off or on via signal line.
Update: Hike up to 10A can be found at Amazon for acceptable prices, but for the 5V, possibly also for the 3,3V, something more powerful has to come about, which then becomes somewhat more expensive.
Somehow interesting:
https://www.amazon.de/VBESTLIFE power supply computer power supply module-default/dp/B07BWBPPLB
Well, I also need PCIE connections. So I was always recommended an inverter, also makes sense because when a power supply is on, also because I don’t want a laptop. If I’m currently in France… I can easily buy an ATX net part and go on. What makes me worry is the efficiency of the inverter… My power supply is, for example, a Seasonic Prime Titanium 700W fanless. 96%+ efficiency
Of course it’s also with a suitable inverter, it’s just a little more lossy. Good and correctly dimensioned inverters have an efficiency above 90%, similar to a PC power supply. Is the same technique in principle. Whether the 96% are realistic… well, depends on the load, is not constant. With 80% load, switching power supplies have their best efficiency. So choose the inverter so that the max. PC power supply plus 20% is the max. power of the inverter.
In your place, I’d rather work with a voltage converter.
You need a sine wave because a PC or notebook is to work behind it. In addition, not directly clean 12 volts are produced by the lighting machine or the solar cells, but this fluctuates up to 14 volts.
Take a look at Youtube and simply enter voltage converters, as there are numerous contributions to the topic. (If it must be a PC)
An alternative is a power supply for the cigarette lighter. These parts are known to be used for charging mobile phones, tablets, etc., which could also work.
If you could make sure that, however, there are also quite certain protective mechanisms and voltage control functions.
With minimal deviation and not somewhere between 12V and 14V, depending on whether the lighting machine is running or not.
Hello,
So you want to convert 12V to 12V with a power supply in between. Maybe I’m wrong, but I think the NT can be omitted because the 12V is already in place. So what is this?
LG
Harry
The TE believes that a PC only needs 12 V DC, which can be obtained directly from the on-board network.
Both assumptions are wrong.
Don’t say what I think you don’t believe me. I want a power supply in between to keep all the protective mechanisms and other voltages as well as a stable 12V line. A light machine is not used because the car is electric.
Now I got it.
There are converters that can make 220V from the AUto battery
Amazon.de : Voltage converter 12v to 230v
Thus, the PC power supply can perform its service as usual. ABer how long the without running motor works on another sheet
If the already existing 12 V DC voltage has the same quality as the one from the power supply, then that would happen. I doubt, however, that the board network can deliver a constant quality, i.e. without voltage peaks.