thanks for your reply...
so by removing series power resistors... and by adding a heat sink to both regulator .... I can use below 200ma that's 100ma current at 12v & 8v... without any problem...;;;
or is it necessary to give series power resistor to it...
or it can work fine at max load 100ma without series power resistors...
and friend I have made your circuit diagram..... the series power resistor is not getting hot but the regulator and relay is getting hot...
so, on working will the regulator and relay will heat little bit.. or not...
The problem is your unsuitable 18/0/18v transformer.!
I have two smps mobile chargers circuits..
when i connect this circuit in series I get 12v and 200ma at output...
each circuit deliver 6v and 200ma current ... so to gain 12v and 200ma current i have connected this both circuit in series....
and the relay is also energizing with it..
So, while talking on unsuitable ....... can we use this mobile circuit in series to work properly !
thanks in advance...
friends I dont know whether this is stupid questions or not... but i am new in this field so as i am getting any Idea or any doubt , i am posting here for help..
so please dont be angry on my any questions friend..