uC741 1nd IC555 tester circuit. will this work?

Status
Not open for further replies.

pcsandhya82

Member level 3
Joined
Jul 31, 2010
Messages
58
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Location
Bangalore
Activity points
1,732
Hi,

following is a link that i found.

https://books.google.co.in/books?id...Qfez53PBw&ved=0CFMQ6AEwAw#v=onepage&q&f=false

I simulated it using multisim, and the 555 part is giving proper output. but 741 just gives out a DC, not a sqare wave.

is there any mistakes in the circuit? my doubt is that, 741 s dual power supply is not given, instead, the -ve supply pin is connected to ground. also, 741 is connected in openloop configuration. is it stable?
 

I don’t have access to the schematics page, only PCB pages. In my opinion for a single power supply it’s better using a LM324 instead.
 


post your multisim simulation circuit to help you more
and we can use double supply opamp as single supply so power supply wont be issue
 

It looks like it should work except that the 741 may not be happy with a 9V supply. (Minimum supply voltage is supposed to be 10V).

 

open loop configuration is used for getting square wave as it switches between saturation and cutoff , so no problem with that
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…