|Dec19-12, 09:43 AM||#18|
Multisim problem please help.
What frequency do you need?
Do you have access to a 5 volt power supply?
|Dec19-12, 10:05 AM||#19|
Well I need about 100khz, I just changed the capacitors to different 100pF ones.Now the oscillation doesn't die off , well at least not in the time when I did the measurements.
The only problem with the 100pF ones is that I have heavy harmonics now but I guess i'll adjust the base voltage because the capacitors are different.
Yes I have some spare computer psu's and a battery so I can have 5v.Why are you asking?
Ofcourse it would have been smarter to make a multivibrator operating from 12 or 24 or whatever little volatge and then add the amplifying stages to get the oscillation up to 330volts but i guess now I will do fine with this setup I only need to correct some errors and adjustments.
|Dec20-12, 09:59 AM||#20|
Well I went through different types of ceramic capacitors in the pF range and found ones that work pretty well they are 33pF.
Now can someone tell me I am getting a sine wave out of my vibrator but it should have been a square wave is it right or there is something wrong with my oscilloscope?
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