[SOLVED] uln 2003 n electromagnetic re

[chetan6491]

thanx guys for u r guidnes.......
i have one some more doubts...
i cann't measure current for thyristor pf controller model, i tried doing triac was burnt, i am not getting proper reason for dat...
wat do u mean by ULN in uln2003

 

[tpetar]

Can you organize question?

 

[chetan6491]

thanx guys for u r guidnes.......
i have one some more doubts...
we HAVE DONE A MODEL OF THYRISTOR BASED PF CONTROLLER USING TRIAC DIAC.
main aim of the ckt is to control n improve the pf.......
we have connected incandescent lamp as load , TRIAC DIAC TRIGGER THE CKT BASED UPON THE PF TO BE IMPROVED......
IF WE TRY TO MEASURE CURRENT ACROSS LOAD,spark comes out the triac diac, can any one tell reason behind dat????????