I am taking a distance learning "lab" class in EE, using Multisim to simulate circuits at home. Unfortunately, e-mail communications with the professor sometimes does, and sometimes does not, result in clear answers, so I thought I'd go straight to the pros.
We are simulating a 741 OpAmp circuit. Another unfortunate matter -- Multisim's documentation on the pin usage on the OpAmp is rather sparse. I have created the circuit the way I think it's supposed to be, although I'm not quite sure if pins 1 and 5 are supposed to be used at all (they seem to have something to do with "Balance", though I'm not quite sure what that is).
In any event, the circuit is supposed to be a simple inverting amplifier. Only, there is no amplication -- the output is simply a steady -11 volts. The circuit and output are shown at:
(Be sure to scroll down to see the output plot.) The output plot shows both the input signal, and the flatline output signal.
If anyone can post something indicating where my problem might be, I'd be grateful. Please also post if you need more information or screen images to trouble-shoot the problem, I'd be glad to post more info, but I'm pretty sure the two images shown on the Web page have everything you need. Thanks in advance for all replies.
Steve O.Technical and Marketing Writing "From Complexity To Clarity" (SM)
Steven AATT Domain DDOOTT com To send an e-mail, substitute @ for AATT, a . for DDOOTT, and OpComm for Domain