nothing that I`m aware off without significant support circuitry, at face value your request seems a simple one, whereas it`s quite a non trivial task.
there are a few options open to you however, most all will require the use of an inductor of some description, the Simple ways would be to just use a suitably rated Primary/secondary transformer, Or the use of an auto transformer, the Auto transformer has the advantage in that they are usually cheaper as they consist of a Single winding with taps along the windings to select your voltage (1/3 in your case as 80x3=240).
the other methods Still require a transformer, and can mess up your waveform considerably, modified SQR wave may be suitable for you? I don`t know.
you Can use something like a Triac, but these seriously deform the waveform and will require wave shaping circuitry afterwards, differential error sense amps will be needed to feedback the output to the control circuit of your inductors primary driver.
I can`t really think of any other methods off the top of my head, but perhaps someone else here will know of a better way for you.
All the best, and Happy New year!
