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here some error in the circuit (ohm meter circuit)

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akrishna71@gmail.com

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hi buddy's
here i have attached my circuit, i have small in this ... that means i have drawn the circuit in the orcad 16.0 and practically checked this circuit

i didn't get the noted output in both ways ,,,,

in this two condition

should i connect the input 5V with the opamp 4th pin , if i do it also i didn't get the output,.


so please try your ways and bring the output to 49mv,.,...,.,.,.,.,. and explain me..,..,
thanking u ! ! ! !!


can you help me buddy's
 

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BradtheRad

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I'm trying this in simulation. It seems to work okay.

Using a current source as provided in the components menu:

2810463000_1352533886.png


Does your op amp have a single supply? Or bipolar supply? For many op amps, their outputs will never go below 2V with a single supply.

For my op amp I selected an output range from 0 to 5V.
 

akrishna71@gmail.com

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first of all thanks for reply dude,
i have a doubt , then why don't you use that LM317L here , and my opamp also dual supply ,,..,,..,.., which software did you done it?
 

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first of all thanks for reply dude,
i have a doubt , then why don't you use that LM317L here , and my opamp also dual supply ,,..,,..,.., which software did you done it?

I'm using Falstad's animated simulator at:

www.falstad.com/circuit

It does not include a 317 regulator IC.
It has a current source for convenience, so I used that. Or I can make a current source using a transistor and zener diode.

The following link will open the falstad.com website, load my schematic, and run it on your computer. (Click Allow to load the Java applet.)

https://tinyurl.com/bxj7f6j

You can change values at will. Right-click a component to bring up an edit window.
 

akrishna71@gmail.com

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hi ,, buddy thanks , i worked it ,,, do you know how to use the Altium designer? if you have the software , please send the link to me,, i need it.,.,..,.,.., free download link just send to me ,,, thanks .,.,.., waiting for your reply
 

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