What is the output?

What can be the F?B be considered to be?

  • Multiplier

    Votes: 0 0.0%

  • Adder

    Votes: 0 0.0%
  • Total voters
    0
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The output is irrelevant as it's an incomplete circuit. What is your purpose for asking the question? What's the story behind the question?

Is this homework?
 
I'm gonna guess zero output. Tell me if I'm right Maverick.
 
Last edited:
mav3r1ck_2k said:
What is the output of the given circuit?
Click to expand...

Minus rail (i.e. most negative the amplifier is capable of).

Say the output is slightly negative or slightly positive. That makes the output of the multiplier slightly positive, but near zero.

An opamp with -1V at it's +input and ~0V at it's -input is driven to the minus rail by it's open-loop gain.

Minus rail multiplied by itself makes positive rail, which makes the difference between -input and +input even bigger, so Minus rail at the opamp output is a stable solution.
 
Interestingly, for any input above 0V the output will be the square-root of the input. But if the input goes slightly negative, which inverts the feedback polarity, then the output will go to the negative rail.
 
Chippie said:
My thoughts exactly prior to reading all the posts....
Click to expand...

hi chippie,
Its a symbol for a multiplier operator.

A little light reading.
 

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"Its a symbol for a multiplier operator." I learn something everyday on this forum. I was wondering the same thing as everybody else.
 
mav3r1ck_2k,

The answer is NOT zero. Did you bother to read the entire thread?
 
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