I am trying to design a circuit to make an inductor oscillate with high-current (around 50A) at a low frequency. The inductor will act as a high-powered electromagnet.
Most designs I've worked/messed with for oscillators were used for higher frequencies, in MHz or KHz, like the Hartley or Colpitts oscillators. But I only want the inductor to resonate at 80Hz.
Edit: To be more specific, what would be the "best" (simplest, cheapest, more efficient, any combination of thereof) way to drive an inductor (1-10mH, this is the kind of coil I work out to obtain the electromagnetic forces required for my application) with a 80 Hz periodic signal (doesn't have to be sine, square would be better) and high current.
Mechanical shakers are what we have used in the past for this. However, here I need to shake an object inside a closed vessel without moving the vessel itself, only the "shaker" therein, which would be a permanent magnet. The vessel has to be non-moving so that it can be connected to rigid fittings, so fluids can be pumped in and out of it. And the fluid system can have no penetration to the outside, because no contamination must occur (biomedical application). Thus, the force must be applied at a distance with no direct contact, which is why I am looking at electromagnetism.