Author Topic: Recommendation for a linear bench power supply under 150$  (Read 485 times)

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Offline drakejest

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Recommendation for a linear bench power supply under 150$
« on: September 19, 2021, 10:44:26 pm »
I am thinking of treating myself to a bench power supply, it about time, i had so many situations that would have made things easier if i had a bench power supply. Anybody can recommend a quality power supply that cost around 150$

Features im interested in
  • Linear Type
  • 30volts and 3Amp atleast
  • 1milliamps accuracy on current limiting and detection
« Last Edit: September 19, 2021, 11:10:39 pm by drakejest »
 

Offline ledtester

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Re: Recommendation for a linear bench power supply under 150$
« Reply #1 on: September 19, 2021, 10:53:17 pm »
The Korad KA3005P or -D model. Discussed widely on these forums.
 

Offline drakejest

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Re: Recommendation for a linear bench power supply under 150$
« Reply #2 on: September 20, 2021, 02:36:16 am »
The Korad KA3005P or -D model. Discussed widely on these forums.

That really is some cheap and well reviewed product. Do you know what the usb/serial port at the back does?
 

Offline ledtester

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Re: Recommendation for a linear bench power supply under 150$
« Reply #3 on: September 20, 2021, 04:50:38 am »
That really is some cheap and well reviewed product. Do you know what the usb/serial port at the back does?

It allows you to control the power supply from a computer. Very useful for automated testing, for instance.
 

Offline drakejest

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Re: Recommendation for a linear bench power supply under 150$
« Reply #4 on: September 20, 2021, 03:44:28 pm »
That really is some cheap and well reviewed product. Do you know what the usb/serial port at the back does?

It allows you to control the power supply from a computer. Very useful for automated testing, for instance.

thats is really cool, this thing is already 10 years old are there newer revisions to this?
 

Offline voltsandjolts

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Re: Recommendation for a linear bench power supply under 150$
« Reply #5 on: September 20, 2021, 03:52:14 pm »
What is not cool is reports of this Korad PSU overshooting at turn on and causing damage to your attached devices.
 

Offline bjbb

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Re: Recommendation for a linear bench power supply under 150$
« Reply #6 on: September 20, 2021, 04:19:03 pm »
"What is not cool is reports of this Korad PSU overshooting at turn on and causing damage to your attached devices."

Yep, we looked at these, and similar, models when searching for lab PSUs for the school lab we were building. Would not trust this type of stuff with my students.

In general, the performance (or lack thereof) of anything under 300 USD was the reason we took a week to design and build them ourselves. Although we did find a few good units (mostly HP stuff) on flea-bay for under 300 USD, we required 12 units of the same model and could not get that quantity unless we bought new expensive units.
 


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