I need help with this circuit

I have this circuit and I would appreciate someone could explain me more or less how it works, and talk about components, thank you.

Hello Ricardo,

I believe this is a solid state relay module where you enable/disable the load based on a 10-24V signal on pins (3,4). The load connects to pins 1,2 on the right side of the module.

Note since this is an active device you'll need to give a supply volate of 24V (shown on pins 1,2 on the left of the schematic). Also the load current is limited to flow in only one direction (pin 1 on the load is positive.)

Tyristormodul = Thyristor Module, and a thyristor is another name for an SCR. Since the SCR is shown off to the right, outside the module and connected to pins 1-2, I suspect that the module is the driver for an SCR, rather than the switch itself. Since it appears that the gate input switches an oscillator on-off, it looks like that oscillator generates a high voltage via the transformer, so I'd guess that it can drive a very high voltage gate on the SCR. Hard to tell how to use it without some information on the drive output or what type of SCR it's intended for.

Hi, Joe Wolin
Thank you very much for answer me, I know more or less how this device work, I am studying electronics, but I have a task from my teacher, and it is to design an equivalent circuit, based on this scheme in blocks.
Ricardo.

Hi Gary Crowell
Thank you very much for answer me, like I said I know how this device work, I am studying electronics, but I have a task from my teacher, and it is to design an equivalent circuit, based on this scheme in blocks.
Ricardo.