Engineering Op-Amp Circuit Help: Voltage Follower & Multisim Guide for Homework

  • Thread starter Thread starter moe619
  • Start date Start date
  • Tags Tags
    Circuit Op-amp
Click For Summary
The discussion focuses on understanding a voltage follower op-amp circuit and its analysis using Multisim for homework. Key points include the requirement for Vcc to be above 5V for the zener diode to function, and the importance of feedback in the circuit, specifically that 100% of the output voltage is fed back to the inverting input. Participants clarify that the op-amp's output voltage is primarily determined by the input voltages rather than Vcc, which should be a fixed DC voltage. The conversation also touches on calculating current through resistors in the circuit, with a final calculation indicating a current of 0.0005 A through a 10kΩ resistor when the output voltage is approximately 5V. Understanding the circuit's operation and feedback mechanisms is emphasized over specific component values.
  • #31
Vout = A (V₊  ̶ V₋) never seen this formula is it the same as Vout=Av*Vin

V=IR
5=I x 10k
I= 0.0005 A
 
Physics news on Phys.org
  • #32
moe619 said:
Vout = A (V₊  ̶ V₋) never seen this formula is it the same as Vout=Av*Vin
The op-amp triangle shows two inputs. What is Vin?
V=IR
5=I x 10k
I= 0.0005 A
That looks right.
 

Similar threads

Engineering Why is the voltage source high potential into node 1 at -12 V in this op amp problem?
  • · Replies 15 ·
Replies
15
Views
2K
Simulating op-amp circuits using Multisim/Matlab
  • · Replies 12 ·
Replies
12
Views
4K
Any advice to make this Op-Amp temperature controller circuit work?
  • · Replies 34 ·
2
Replies
34
Views
4K
Engineering Analyzing this operational amplifier circuit with DC
  • · Replies 8 ·
Replies
8
Views
2K
Engineering Calculating the unknown voltages in ideal op-amp circuits
  • · Replies 13 ·
Replies
13
Views
2K
How to Calculate the Complex Op Amp in Circuit Diagram
  • · Replies 8 ·
Replies
8
Views
2K
Inverting Op-amp signals and Sawtooth waveform generation
  • · Replies 44 ·
2
Replies
44
Views
5K
Engineering Op amp circuit -- Did I calculate the output voltage correctly?
  • · Replies 12 ·
Replies
12
Views
4K
Calculating the voltage in an OP-amp circuit with a current source
  • · Replies 1 ·
Replies
1
Views
2K
Engineering Analyzing the internal circuitry of IC 741 Op-Amp step by step
  • · Replies 4 ·
Replies
4
Views
5K