First, I don't think induction stoves work with DC currents. I've seen some people do this using "car batteries("")":https://dspace.mit.edu/bitstream/handle/1721.1/100618/932637869-MIT.pdf?sequence=1 to supply for the voltage need for the induction cooker to work. If you want to understand its circuit, in a nutshell, induction means generating electricity using magnetism. When you hear someone talking about induction, or something that uses induction, all it means is that magnetism is being used to generate electricity.
Inside the glass cooktop, there's an electronically controlled coil of metal. When you turn on the power, you make a current flow through the coil and it produces a magnetic field all around it and (most importantly) directly above it. Now a simple *_direct electric current_* (one that's always flowing in the same direction) produces a constant magnetic field: one of the laws of electromagnetism is that fluctuating magnetism is produced only by a constantly changing electric current. So you have to use an alternating current (one that keeps reversing direction) to make a fluctuating magnetic field that will, indirectly, produce heat. And that's all that an induction hob does: it generates a constantly changing magnetic field. It does not generate heat directly. You can put your hand on top of it and you won't feel a thing.
I hope this would help
