Tagged Questions

0
votes
1answer
262 views

Peak detector is not working when voltage is changed

I am trying to design a peak detector in Multisim simulation tool. I have designed buffered peak detector to get peak voltage of sine signal. The designed circuit is working when signal voltage is ...
2
votes
1answer
213 views

Circuit Nodal Voltage

I have a voltage divider feeding into an op-amp voltage follower buffer circuit. I'm trying to calculate the voltage level at the non-inverting input of the op-amp vs. the source voltage. The possible ...
0
votes
1answer
368 views

Error when simulating spice model in OrCAD PSpice

I am trying to simulate a circuit based on TS522 op-amp using OrCAD PSpice 16.5. The manufacturer's website did not have a model for this op-amp, and I had to look for it elsewhere. I was able to find ...
3
votes
1answer
320 views

Generating thermal noise from a resistor

I'd like to create a random number generator based on thermal noise from a resistor, using an opamp to amplify the noise and an inverter to convert the resulting spikes into a digital signal. Here's ...
2
votes
2answers
1k views

Op Amp based Hartley oscillator

I would like to build an oscillator that will satisfy a few requirements. The main requirement is to have exactly one capacitor. Another one is to have high Q and sine wave output. I am considering ...
4
votes
3answers
2k views

Drawing a comparator op-amp in Multisim

I'm attempting to draw the following two circuits up in NI Multisim 10, to attempt simulation and confirm my calculations. However, I'm not sure how to represent the Vin and Vout sources. Also, ...