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What lab. power supply to select

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Hi there,

I'm about to get me a new lab. power supply, but what are the pros and cons on a "normal" power supply and a switching power supply.

Thanks
 

crutschow

Well-Known Member
Most Helpful Member
For a lab supply a "normal" linear supply is usually preferred since it has lower noise for powering analog circuits, even though it is less efficient. But if you are only going to power digital circuits, or the power requirements are very large, where the inefficiency of a linear supply is a problem, then you can go with a switching supply.
 

bountyhunter

Well-Known Member
You did not say what your volateg and current requirements are. I think a good lab supply is a 0-20V/3A supply, with two outputs so you can do dual rails. I prefer linears under 100W because of noise and EMI.
 
I also considered the noise problem with switching supplies, but I need a "general" power supply that can also provide a lot of current to motors, so I'm going to use a transformer supply. Thanks
 

crutschow

Well-Known Member
Most Helpful Member
I also considered the noise problem with switching supplies, but I need a "general" power supply that can also provide a lot of current to motors, so I'm going to use a transformer supply. Thanks
Both linear and switching supplies use transformers.
 
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