How to pass 220 volts through a photodiode?

Question

Electronics

Hello.
It is necessary to pass 220 volts (mains voltage, AC) through the photodiode.
That is, if you apply IR radiation to it, it will pass AC 220V, if there is no IR radiation, it will not pass.
What are the options? Preferably the cheapest and simplest, i.e. without two transformers on the sides, etc.

Answer 1

A relay (solid-state or electromagnetic), according to its characteristics, capable of switching 220 V (in fact, you were deceived, the mains voltage has been 230 V for a long time), as well as the required current strength (which you did not mention, but it is important).

i.e. without two transformers on the sides

In general, it is not clear which side the transformers are here. I recommend entrusting the work to a specialist. Without knowledge and experience, high voltage jokes can be fatal.

Answer 2

calculate max current
capacitive load = can kill your circuit because at the time of on with discharged air conditioners = current will be maximum
PS
let it be 10 milliamps,
well, there is Ohm's law + Faraday

Answer 3

Not enough data in the task.
you can take for example such a module https://www.aliexpress.com/item/1005001524733876.html and to make it react only to IR radiation, cover the sensor with dark red glass.
Let me remind you that there is also a lot of IR radiation from the sun and the sensor will be triggered by sunrise, for example.