Electronics > Beginners

DIY power supply

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plazma:
Do you want the challenge of designing a working PSU or do you need a cheap one?

If the latter check out DPS5005 and similar modules. EEVblog also reviewed some models.

I have built few units with DPS5005 and DPS5015 modules. One unit got internal batteries for portability.

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Cliff Matthews:

--- Quote from: plazma on August 03, 2018, 11:15:03 am ---Do you want the challenge of designing a working PSU or do you need a cheap one?

If the latter check out DPS5005 and similar modules. EEVblog also reviewed some models.

I have built few units with DPS5005 and DPS5015 modules. One unit got internal batteries for portability.

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What's the ripple like on the DSP5005? I added a voltage boost winding to my Pace ADS200 to get 40vdc out the back and I'm looking for an add-on module (since the Pace station will always be on the bench, it's like having an invisible 80w PSU for $20).

plazma:
 19.2V input (Dell laptop PSU). 5V 5A output.

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Cliff Matthews:

--- Quote from: Pirateguy on August 03, 2018, 08:53:31 am ---i actually ordered 2 function generators.
any thoughts on this one?

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Yes, it would be nice if someone could comment, to know it's "flakey" :-+ I see alice1101983 has it listed at $3.26 USD
https://www.ebay.com/itm/Adjustable-PWM-Pulse-Frequency-Duty-Cycle-Square-Wave-Signal-Generator-Module/202085368556

Cliff Matthews:

--- Quote from: plazma on August 03, 2018, 11:51:51 am --- 19.2V input (Dell laptop PSU). 5V 5A output.

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Nice, doesn't look bad at all.. (even better add a choke and cap, "she'll be alright")
You could put two SMPS 19v in series with a big diode between (to go higher), since AFAIK the DPS5005 cannot boost..

Here's my Pace transfo: https://www.eevblog.com/forum/manufacture/my-first-pace-ads200-victim/msg1711994/#msg1711994

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