Rob,

You might want to rethink using a 12F675 pic for the new design. For one I don't think the pic has enough rom for the program it going to take to make this work and second I don't think it will be able to control timing and provide the output for the transformer. I think a 18F pic is more suited to the job. I had help to take the timing code and fit into a 12F pic and I had to strip a lot out of it. If you want this thing to be able to output real time data thats more coding.Also the max clock speed a 12F pic can run at is 8 mhz. You might need something more close to 20 mhz and a lot mor program space.


Al

the transformer oscillates or turns off and on very fast. This is how the voltage is stepped up to go from 5 volts to 400.