Was trying to figure out a transistor switch to drive a relay.
Read up a bit and saw where a general consensus dictates that Ib can be 1/10th Ic, so went with that.
Relay is 5V @89.3ma and went from there. (See attached)
I tried to put it in simulator but simulator says I need a "Ground Node (Pull down device)" before it will work.
Can't figure that one out, any help would be appreciated.....
Transistor just a general type (2N3904)
(was a little off on Ib, should be 8.993ma)
Oxbo
Read up a bit and saw where a general consensus dictates that Ib can be 1/10th Ic, so went with that.
Relay is 5V @89.3ma and went from there. (See attached)
I tried to put it in simulator but simulator says I need a "Ground Node (Pull down device)" before it will work.
Can't figure that one out, any help would be appreciated.....
Transistor just a general type (2N3904)
(was a little off on Ib, should be 8.993ma)
Oxbo
Attachments
-
34 KB Views: 75
Last edited: