Electronics > Beginners
Cheap power supply for a begginner going on "FleEbay"?
jabalv:
Actually right - I will lookup tomorrow morning some of my old PC power supplies. PC power supply gives 12V DC, which will work so good for my desk testing or so. So will not need to keep hazardous liquid car battery under the table.
For inspiration
malagas_on_fire:
--- Quote from: rsjsouza on February 18, 2019, 09:42:50 pm ---A car battery perhaps?
In a very distant past we used to have a couple of motorcycle batteries when we needed some real output current at that voltage level (at that time switching PS was almost non-existent and linear was very expensive).
--- End quote ---
have some 12V / 5V 1 ~2A Switching PSU small adapters , ATX desktop, one slab from a old UPS , some 9V batteries and linear regulators. never got a adjustable power supply because most of the voltages and currents are in the desired range. The ATX and SLAB's comes handy when current is required. Also using LM317 can be used to build the charger.
sambonator:
--- Quote from: jabalv on February 18, 2019, 11:56:47 pm ---Actually right - I will lookup tomorrow morning some of my old PC power supplies. PC power supply gives 12V DC, which will work so good for my desk testing or so. So will not need to keep hazardous liquid car battery under the table.
--- End quote ---
This would work well with an old PC Power supply
https://www.ebay.com/itm/24Pins-ATX-Benchtop-Board-Computer-PC-Power-Supply-Breakout-Adapter-Module-TE762/142926531780
Even an old laptop AC adapter with 12v out might work for you...
jabalv:
At the end I am planning to build something similar as this:
Ordered most of the parts. I have few old PSUs laying around in a house. But I am wondering of possibility to squeeze out additional 24V which would be useful to test truck electrical parts/lamps etc.
Any ideas if I can achieve 24V from regular computer PSU in easy way?
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