A friend of mine recently purchased a project kit that had a strange circuit connection (strange to me
).
The circuit had a triac and the triac's gate was operated by a DC output from a 555 and the other two terminals of the triac was given 230v AC. I do not remember the triac number(BT something).
The strange thing was that one of the triac terminals that was given the AC was connected to the DC ground (output of the rectifier and filter).... Is this allowed???
These circuit kits are know for their notoriously poor designs....