folarinv said:
Nigel Goodwin said:
folarinv said:
thank you phalanx. The transformer I used was taken from a 12V/220V, 650VA UPS equipment. but I'll check again to confirm the voltages on the transformer
Is it a 50/60Hz transformer?, or is it a switch-mode one (which would seem more likely).
I cannot confirm immediately if the transformer is switch-mode type or not as I am away for work in a swamp. But I'll like to know if my circuit arrangement is correct and also if my code is apprioprate for 50Hz system.
The code looks to be outputing 50Hz OK, although
I would like to see a little longer period when both transistors are OFF.
The two transistors are never off at the same time ( no delay between the switching of the transistors.
It's simple to tell if it's a 50Hz transformer, is it huge and heavy?.