Electronics > Beginners

Can I use a Lab Bench PSU and a Function Generator at the same time?

(1/7) > >>

codingwithethanol:
Long story short, I want to experiment with Op Amps; can I feed the rails with my PSU and the inputs with my function generator? I've read enough to know that hooking equip up wrong can lead to explosions and fire and all sorts of nasty stuff, so I just want to be sure that one wont back feed the other and fry it. Also how would you probe the output with an O-scope?

xrunner:
codingwithethanol,

Yes you sure can do that. Don't hook the signal generator directly to the power supply though.  :-+

codingwithethanol:
Ok cool, just one question about the output, what would be its ground reference? I want to view the output on my oscilloscope. I would think it would just be the ground of the psu but theres feedback so im not sure.

xavier60:

--- Quote from: codingwithethanol on May 25, 2019, 01:20:50 am ---Long story short, I want to experiment with Op Amps; can I feed the rails with my PSU and the inputs with my function generator? I've read enough to know that hooking equip up wrong can lead to explosions and fire and all sorts of nasty stuff, so I just want to be sure that one wont back feed the other and fry it. Also how would you probe the output with an O-scope?

--- End quote ---
You are uncertain as to how to power the op-amp and what to use as the ground reference.
Research "op amp single supply vs dual supply"
I suggest single rail for starters. You could wire a resistor in series with the output of the function generator to protect it, 1KΩ or higher.

More: I see that the PSU is dual channel, I still suggest staying with single rail for now.

xavier60:
I'm starting to change my mind. Although dual rail can be confusing for a beginner, single rail has its own messy complications.
Anyways, show us a diagram of what you want to try.

Navigation

[0] Message Index

[#] Next page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod