Products > Test Equipment
Cheap bench power supply?
slybunda:
Looking fora cheapo bench power supply, one of those 0-30v things. Seen a few on AliExpress but not sure which one to go with. I dont want to cheapo out to the point i end up with something dangerous so just need it to be safe and reliable.
Any suggestions?
Aldo22:
I recently bought the cheapest one and wrote about it here.
nctnico:
--- Quote from: Aldo22 on January 28, 2024, 01:54:49 pm ---I recently bought the cheapest one and wrote about it here.
--- End quote ---
For your primary bench power supply, you'll want a linear one. Not a switcher like yours. Way too much noise on the output; you can't make decent measurements in circuits. Korad sells decent linear bench power supplies. I'd go that route when on a budget.
Aldo22:
--- Quote from: nctnico on January 28, 2024, 02:12:06 pm ---For your primary bench power supply, you'll want a linear one. Not a switcher like yours. Way too much noise on the output; you can't make decent measurements in circuits. Korad sells decent linear bench power supplies. I'd go that route when on a budget.
--- End quote ---
Yes, that's right.
I still have an old linear one, which is usually sufficient for electronics experiments.
But it doesn't deliver more than 10 watts.
The new one can deliver up to 300 watts.
It just depends on the intended use.
madires:
Cheap, AliExpress, safe and reliable in one sentence sounds like an oxymoron. Or in other words, anything with a mains plug you buy from AliExpress requires a safety inspection before plugging in. Back to your question. Are you looking for a linear or switching mode PSU? How many amps?
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