Products > Test Equipment

DP100 PD-Power Supply 100Watt [0-30.00V / 0-5.000A) [∼50$]

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Phil1977:
Fantastic mod and great results!

It´d be great if the manufacturer would have spent these additional cents.

But anyhow, even with the mod the PS can't be flawlessly used in any common ground setup - now just due to the current sensing on the low side. It´s fantastic that you offer the mod boards, but I´ll stay with the additional galvanic isolator in the back of the bench.

zambetti:
This thread has been great reading.

For anyone who has two DP100, do you know if it is possible/safe to chain them for positive and negative voltages?

zambetti:

--- Quote from: Dexter2 on April 25, 2024, 04:23:06 pm ---update instructions and Gerber files if someone else wants to update this power supply.
--- End quote ---

This mod looks so clean. Beautiful work.

I am considering giving it a shot.

Reading your schematic, I have this list of components that must be bought...

• M1 : Toshiba XPH4R714MC,L1XHQ
• U1 : TI LM2776DBVT (SOT-23-6)
• M2 : OnSemi 2N7002
• C1, C2, C3, R2, R1

Do you have a recommended part number for ZD1?

DaneLaw:

--- Quote from: zambetti on April 30, 2024, 02:50:30 pm ---This thread has been great reading.
For anyone who has two DP100, do you know if it is possible/safe to chain them for positive and negative voltages?

--- End quote ---

Dont know, but I would love to hear any feedback/progress on how tolerable a couple of DP100 are when chaining them up in different configurations (neg, volt, amp)
Will also give it a shot again and report back.. tested it briefly when I got my two units, and encountered some issues to the point, that I backed out..

electr_peter:
DP100 manual states:
--- Quote ---Support multiple (<=3) devices in series to achieve higher voltage output or positive negative voltage output.
--- End quote ---
So series connection is possibly in theory (with independent floating supplies like battery banks). I do not have 2 units to test it in practice.

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