Can u solve this op amp ?

Discussion in 'Electronics Homework Help' started by Zeeshan Sajid, May 12, 2016.

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1. Zeeshan Sajid

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May 12, 2016
I have inserted a file. Please specify type of op amp and provide solution. I need complete solution and of course you have to do it for free. Your time and work will be really appreciated.. Thank you so much if u can help me solve this

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2. Zeeshan Sajid

5
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May 12, 2016
Kindly provide accurate formula for calculating V out in this circuit.. No guess please..

3. davennModerator

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Sep 5, 2009
so how about you showing what you have learnt so far about Op-amps ?

we are not going to just supply direct answers, you need to make an effort

Dave

Ian likes this.
4. Zeeshan Sajid

5
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May 12, 2016
Dave[/QUOTE]
I have tried alot of options and formulas but i dont know what is correct one?? Friend of mine told me its voltage follower...but i have not seen op amp like this before.. I am not expert in op amp so if u knw exactly what type this is .. It will help me alot

5. (*steve*)¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥdModerator

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Jan 21, 2010
why don't you start from the basics of assuming that Vout = a * (V+ - V-) and work from there.

6. Zeeshan Sajid

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May 12, 2016

Sir can u just tell me what type it is??

7. (*steve*)¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥdModerator

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Jan 21, 2010

hevans1944 and Ian like this.
8. Zeeshan Sajid

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May 12, 2016
Ok.. Thanx any ways for all HELP

9. (*steve*)¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥdModerator

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Jan 21, 2010
No problems. Thanks for your DEMANDS.

10. ramussons

385
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Jun 10, 2014
as Steve said, work backwards.

Assume the output voltage is Vo.
Workout the voltages at the + and - terminals, and the currents flowing in the resistors.

11. hevans1944Hop - AC8NS

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Jun 21, 2012
The problem states it is an ideal op-amp. You won't find one of those anywhere, so using a simulator is not going to solve your problem unless you create a sim model with ideal op-amp characteristics. An ideal op-amp has zero bias current, zero differential offset voltage between the inverting and non-inverting inputs, infinite open-loop gain, infinite bandwidth, zero output impedance, and infinite output voltage swing with infinite slew rate at any load current. It is also unconditionally stable with any closed-loop negative feedback network applied to it.

Most of us here get by with commercially available op-amps that are bit more fussy and far from ideal. Sorry about your luck and current lack of circuit analysis skills.

12. hevans1944Hop - AC8NS

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Jun 21, 2012
Also really sorry about @Zeeshan Sajid's attitude. Perhaps we have a language/cultural problem and not an electronic problem?

If I were a moderator, I would have closed this thread after post #8.

13. davennModerator

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Sep 5, 2009

I was just waiting to see if he would come back with some answers to questions on what he has discovered /learnt so far
but responses have been lacking .... was giving the OP a fair and reasonable chance

so yes