Hello, I'm a friend of Mr. Thorim, I can provide the LT spice file for you guys. Note that I used UA 741 model. Also, can you guys check the Triangle out result pleases? Does it seem like something wrong on the graph?
Purpose: To find frequency output as we increased input voltage.
Sorry to disappoint you, but I don't know what the circuit want. All I want to know is the sim result of this circuit, What are they look like and what is correct. Lastly this circuit support which range of frequency?
hi,What are they look like and what is correct. Lastly this circuit support which range of frequency?
Our project is to compare two circuit (BJT and Op amp) as which one is work the best (performance) , our understanding if the frequency is high, the circuit will have the best performance. The correct: our graph simulation should look like this cause we dont know the graph is correct or not.hi,
I would like to help you, but I need some guidance from you, regarding the specification on how you want the circuit to operate and the result you want to achieve.
ie: What is the definition of correct.?
The opamp circuit input should be Sine , Pulse or Dc input ? which one is the suitable input?Yes, that looks about right. U3 is a sawtooth generator and U1 is a comparator with hysteresis. M1 can be a small signal NPN like 2N3904 or 2N2222 if you prefer. but add a base resistor.
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