Dear Experts,
I try to use a SSR instead a toggle relay to switch the polarity of a railway DCC signal at a RailSwitch middle contact. This digital signal is AC 18V, the maximal current is 3A
Inspired by the TIDUC87A document I create following circuit. The gray toggle switch is only to show what I want to realize.
It works perfect if only one SSR is implemented ( left OR right side ) but no function if both SSR are connected.
My Questrion:
Is there an integrated ( and cheep ) ready to use circuit available for a AC SSR toggle switch?
Whats wrong with this circuit?