Its a type of oscillator which utilises the back emf from the inductor to generate very high voltages, by interrupting the current flow in the coil quickly...

A bit like the flyback transformer in a TV or a car ignition coil... The oscillator part can be self oscillating or driven by an independent frequency source...

I think that sume it up!

John.

"Its a type of oscillator which utilises the back emf from the inductor to generate very high voltages, by interrupting the current flow in the coil quickly..."

Isn't that really the principle of a flyback transformer?

I think a flyback oscillator would be one that produces a sawtooth output waveform that can be synchronized to begin at a given time as opposed to an asynchronous oscillator which free-runs.

That's what I said in my post...? same as a flyback transformer...?

A sawtooth oscillator can be any type of oscillator - a flyback oscillator is specifically using the back emf of an inductor...

John.