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Interfacing Digital to analog...plz help..

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raniamit110

New Member
Hi there...
I am a sort of beginner with the projects....but i am facing problem with using transistor as switch.i mean i am doing an electronics code lock...
it gives 0 on the o/p when the code is accepted...so i need to know how do i use a transistor as switch to drive a relay...or can i use a not gate at the o/p and then how to use then transistor as switch???

plz help...
Thanx in advance.
 

BrownOut

Banned
What are you trying to drive, and what is the voltage and current requirements?
 

Mikebits

Well-Known Member
Also, what are you driving transistor from? Part number?
 

raniamit110

New Member
Driving means??
sry didnt get what exactly are u trying to say...
but i mean...i would give the o/p of digital ckt to the base of transistor...so that it would act as a switch..and i would use transistor in CE config...but...how do i use it???am not gettin the proper ckt to join base of transistor and then get its o/p....
 
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