Solid State Relay Circuit

[byonchev]

Hi guys,

I'm working on a impulse latching relay and I've come to the part where I need to switch the AC current on and off. I need to fit the pcb in 1U DIN rail case so I can't use any of the SSR available and I started building one from scratch. I've attached the current version of the circuit, which works in theory in LTSpice, but when I tried it there is always current flowing through the load. Can someone help me fix the circuit or propose a better universal SSR one?

 

[chuckey]

Try moving the load to the other terminal of V2. I think you have mixed up your M1/M2 terminals on the triacs
frank