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| Power supply for beginner? |
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| J-R:
Those may be valid points, but the circumstances will matter and as I mentioned I don't see the OP needing linear based on his historical posts. For a beginner I like the idea of a low-cost device rather than an expensive one. Less chance of a mistake being costly. If you get to a point later down the road where you just must have a $400 or $1,500 bench supply, then get one at that point. |
| nctnico:
--- Quote from: J-R on August 11, 2024, 12:10:35 am ---Those may be valid points, but the circumstances will matter and as I mentioned I don't see the OP needing linear based on his historical posts. For a beginner I like the idea of a low-cost device rather than an expensive one. Less chance of a mistake being costly. If you get to a point later down the road where you just must have a $400 or $1,500 bench supply, then get one at that point. --- End quote --- Again, a linear power supply doesn't have to be expensive. The Korad I mentioned earlier is in the $100 ball-park and can be bought from a local supplier. I have a couple of the cheap switcher PSUs as well. The ones branded Rek and Gophert are OK safety & construction wise but others can be quite unsafe where it comes to the mains wiring. |
| Phil1977:
Regarding value/price I can recommend the Peaktech 6225A or its 10A pendant: https://www.peaktech.de/PeakTech-P-6225-A-Labor-Schaltnetzteil-DC-0-30-V-0-5-A/P-6225-A They are hybrid regulators, having a primary SMPS with an attached linear post-regulator for more precise control. After around 10 years of use the voltages and currents are still +/- 0.5% and the ripple is better than most other power sources in a mixed digital/analogue environment. |
| ledtester:
--- Quote from: live2fish88 on August 10, 2024, 11:39:51 am ---... I'd like to be able to power electronic devices on the benchtop (was repairing a cheap RC car for my son the other day and had to keep plugging and unplugging the battery). ... --- End quote --- I think you'll find that even with a lab supply you'll find yourself applying/removing power from a circuit via some sort of clip -- alligator clip or test clip -- or inserting/removing a wire into/from a breadboard. Power supplies usually take some time to turn on so they are generally left turned on for the entire session. There are supplies with a output on/off switch which you may want to consider, but even with those supplies you may find it more convenient to manually connect and disconnect power anyway. |
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