Electronics > Beginners
My first circuit.
moontide:
So I hooked it up and there did seem to be an ocillation. Around 10 cycles in decreasing amplitude that repeated. There was also another background pattern. After testing multiple points the patterns remained the same. I was perplexed. Then I tested the power supply as I also realised I had no load..... I damaged the power supply and now it is delivering an oscillated voltage....
I take this as a win! Lol.
Zero999:
Where are you measuring the output?
It's not surprising there's some oscillation with an exponential decay, as you have an LRC circuit. The inductor has a parasitic capacitance, which will resonate with the inductance and energy will be lost in the resistance of the windings, hence the decay.
https://en.wikipedia.org/wiki/RLC_circuit
To make an oscillator, an amplifier is required to cancel out the losses, so the circuit becomes unstamped and oscillates continuously. I'd recommend trying a Colpitts oscillator, as it's very easy to build.
https://www.electrical4u.com/colpitts-oscillator/
https://en.wikipedia.org/wiki/Colpitts_oscillator
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