Hi all, Just doing some experiments with PWM on my 16f84 ,I have a 3k/3k =
coupling transformer connected to RB0 in series to ground , As I am =
teaching myself electronics and pic programming out of books I am not =
sure if there should be a current limiting resister in there somewhere?? =
( there is already 3k in the transformer)how do i find out how much =
current it can take?)=20
I have not fried anything YET . ;-) but the point is I want to know how =
to do it properly!!

When I have an example like a LED ,ohms laws etc. I can get along ,but I =
have not been able to find an example for this ..=20

                  ______
RB0-----------[ c/t      ]-----------   =20
                 [3kohms]            *probes output side
gnd------------[______]-----------
     =20
I am trying to emulate the output of a reluctor wheel on a output shaft =
which is a sinewave(hope I am on the right track!)


Any help would be appreciated.

Paul =20


      =20

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