Hello. I made the attached schematic, and in the simulation, it is oscillating, but when testing the practical circuit, with the oscilloscope, it doesn't look to oscillate (the scope is a Owon SDS 1022).
The schematic:
Please find attached the simulation in LTSpice and the libraries.
I would like to know what should I do in order to find where is the problem, and why there is a difference between the simulation and reality ?
Edit: I closed the LTspice and opened it again after a few minutes, and now the simulation works correctly, with no oscillation.
I still have a question: how many W does D3 need to dissipate, in worst case scenario ? It is enough to use a 0.5W zener diode for D3 ?
The schematic:
Please find attached the simulation in LTSpice and the libraries.
I would like to know what should I do in order to find where is the problem, and why there is a difference between the simulation and reality ?
Edit: I closed the LTspice and opened it again after a few minutes, and now the simulation works correctly, with no oscillation.
I still have a question: how many W does D3 need to dissipate, in worst case scenario ? It is enough to use a 0.5W zener diode for D3 ?
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