Electronics > Beginners

Choosing a PSU, what should I look for

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Moriambar:

--- Quote from: Wolfgang on February 20, 2019, 01:21:20 pm ---another try would be Batronix. Full price is about 500€, but you could ask for an offer. And shipping in Europe is free.

--- End quote ---
Well, perhaps I will, but I doubt they will say "look: an unknown Italian customer wants a single unit! Let's give this to him with a 25% discount!"
But one can never know :)

Calvin:
Hi,

The Rigol simply doesn´t look like a decent tool, but rather like "Transformers-meet-Hello-Kitty".
If I were CEO and had two little Kids, a girl and a boy and asked them to design a power supply front face .... I think something looking like the Rigol could emerge.  :-DD
Hey Rigol ... keep it clean and simple ... we need tools not toys!  :box: :box:

jauu
Calvin

Wolfgang:
... I would rather not buy electronic equipment based on aesthetics. For the purists there is a monochrome version (DP832 without A).

rstofer:

--- Quote from: Wolfgang on February 21, 2019, 11:21:11 am ---... I would rather not buy electronic equipment based on aesthetics. For the purists there is a monochrome version (DP832 without A).

--- End quote ---

And also without the extra digit of resolution.
I think the 832 can be unlocked to get that extra digit of resolution but I don't know if that allows for the color display.  Probably not.
I simply don't care enough about the extra digit to unlock mine nor do I care enough to pay more than twice as much.

rstofer:

--- Quote from: Calvin on February 21, 2019, 06:17:33 am ---Hi,

The Rigol simply doesn´t look like a decent tool, but rather like "Transformers-meet-Hello-Kitty".
If I were CEO and had two little Kids, a girl and a boy and asked them to design a power supply front face .... I think something looking like the Rigol could emerge.  :-DD
Hey Rigol ... keep it clean and simple ... we need tools not toys!  :box: :box:

jauu
Calvin

--- End quote ---

Ever used one for any length of time?

I can enter voltage and current values with the keypad in terms of mV, V, mA, A depending on a button push.  I can tweak these values with the rotary encoder.

I can select which of the 3 channels gets adjusted and I can set voltage, overvoltage limit, constant current and overcurrent shutdown values.  There is a difference between constant current setting and overcurrent shutdown.  If the DUT hits the overcurrent or overvoltage limit, all channels shut down immediately.  And I can see all 12 of these settings at all times.  Further, I don't have to short the output to make the current settings with some kind of potentiometer, all values are set digitally.  12 settings...

I also get a larger display of output voltage, current and watts.  For all 3 channels simultaneously.
So, we have 21 different values constantly displayed, try that with 7 segment displays.

The only thing I find objectionable is the fact that I have to confirm with a second button press that I want to turn on all 3 channels simultaneously.  Not a big deal but, gee, I just pushed the All on/off button, let's get it done already!  I understand why it is done so I will get over it.

In any event, the DP832 is probably out of the price range so it really doesn't matter.


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