AC from DC... I think...

179

03:15:52

Right?

published 8 years ago

jason9

8 years ago

Yes, technically, although there is nothing in place to sustain the oscillations. Without something to sustain them, the oscillations will eventually die out, which will generally happen very quickly in the real world.

LeButch

8 years ago

This is still DC. AC alternates from + to -. This one stays positive.

ViolationMad

8 years ago

Its both ac and dc and its easy to get rid of the dc with a dc blocking cap...As hurz has already mentioned some time ago on another thread.

hurz

8 years ago

Yes, this is nothing else like an unrealistic 100000H coil http://everycircuit.com/circuit/6498565324275712

hurz

8 years ago

To clarify, there is AC plus DC, but only as ringing effect at startup caused by power on as ultrawide band spectral energy push. The resonance frequency is also include in this power on spectrum, but this energy is limited and will drop after some time. Whats left over after AC is gone, is 1V DC. As @jason9 already said, there is no active element to keep AC oscillation going. @LeButch is as usual wrong with his definition and ignores the fact that AC and DC can be both present, as @ViolationMad already mentioned! Hope that helps.

hurz

8 years ago

Here a simplification of what this circuit is plus a switch to simulated the startup unloaded cap! Remember for a restart to open the switch again so the cap is uncharged http://everycircuit.com/circuit/6630036756234240

angel17666666766

8 years ago

This is no dc, there isn't negative voltage, this is a weird oscilator

hurz

8 years ago

@angel17...66, anything I can for you explain in a more detailed way as I did in my previews comment? Do not hesitate and ask!

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