Products > Test Equipment
Component tester with I(U) diagram?
voltsandjolts:
Cross-ref:
https://www.eevblog.com/forum/testgear/owon-hds-200-handheld-oscilloscope-w-builtin-dmmawg/msg5369042/#msg5369042
https://www.eevblog.com/forum/testgear/owon-hds-200-handheld-oscilloscope-w-builtin-dmmawg/msg5370329/#msg5370329
ebastler:
Hmm, that's a nice option if one already has the right handheld scope with an AWG. Or maybe a nice excuse to get one! ;) A compact and tidy setup, but it still requires a bit of setup time to connect the box, and a few button presses to set up the AWG and the X/Y mode in the scope. So maybe a small dedicated device still makes sense?
I wish OWON had thought of including that "curve tracer mode" in the scope itself, and making it available via the regular multimeter test lead connections. I'd buy that right away!
Evergreen64:
Peak Electronic Design makes a tester for semiconductors called the DCA75 Atlas Pro that can do curve tracing. You have to connect it to a computer to see the curves though. https://www.peakelec.co.uk/acatalog/dca75-dca-pro-semiconductor-analyser.html
kripton2035:
I think the OP (and me too) are looking for a compact, portable device that does show by itself components curves.
there are already aout there lots of octopus and bulky component testers...
ebastler:
--- Quote from: kripton2035 on September 24, 2024, 06:12:07 am ---I think the OP (and me too) are looking for a compact, portable device that does show by itself components curves.
there are already aout there lots of octopus and bulky component testers...
--- End quote ---
Yes, that's the idea. I am really tempted to build something... I like the idea of keeping this minimalistic, with just a small touch display, power button, USB charging port, and two jacks for test leads.
Does a 3.2" touch screen (320*240 pixels) sound large enough? It would only be used for qualitative "eyeballing" of curves, but should be able to display labels on the voltage axis and let you estimate diode forward and breakdown voltages.
One can always get fancy in the software, trying to recognize certain components and display rough measurement values for them. Minimal controls would be the selection of two to three voltage ranges, I'd guess: +-12V to check most diode voltages of interest, +-2V or less to avoid damaging sensitive circuits -- anything else? Are different current measurement ranges required, or different frequencies for capacitor measurements?
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