hi
i have a nice question today
is the thyerstor as a control circuit positive or negative feed back and why?
i hope you help me and thnk's.

 

Thyristors need a Positive pulse on the Gate terminal with reference to the Cathode.

 

but will this "positive pulse" mean a positive feed back

 

A thyristor has internal positive feedback to keep it on once it is triggered on, if that's what you are referring to.

 

Bilalo, can you show us your circuit what you are thinking of?

http://forum.allaboutcircuits.com/threads/i-have-a-nice-question-today.117052/

 

MOD NOTE: One thread is enough.

http://forum.allaboutcircuits.com/threads/i-have-a-nice-question-today.117052/