How to control the output voltage of a solid state relay
I think you've misunderstood how a solid-state relay works.


The coil, or input, will work on 3 to 32 VDC.
The contacts, or output, are rated for 24 to 380 VAC.
When the "coil" receives its required voltage (SW1 closes below) it closes the internal "contact". In a normal relay, this is an electromechanical process. In an SSR it is an electronic process. Either way, this keeps both sides isolated from each other.


General Relay Diagrams:







simulate this circuit &ndash; Schematic created using CircuitLab

The voltage that the coil operates on and the voltage at the output depend on what voltage you feed into either side. There is no conversion going on in a relay. It is just a switch. I wouldn't suggest using what you've displayed as the main component of a voltage regulator.