boost converter spice
Well, what kind of errors are you getting? You have to be specific with your problems and give some additional information (operating condition, other specifications) to get a useful answer. If you present a vague problem, you will get vague (and useless) answers and followups that ask for additional information.
I assume that you already have the datasheet from Texas Instruments (or Fairchild) that is given here
AC/DC and DC/DC Power Supplies - PWM Power Supply Controllers - UC3845 - TI.com
Look in the back of the document on page 7 for a circuit based on the flyback topology.
There is document here on understanding the boost power stage
https://focus.ti.com/lit/an/slva061/slva061.pdf
Make sure that you understand this document. Before actually applying the controller into your system, you have to make sure that your topology can run in open-loop -- just drive your MOSFET with a volage pulse of a given frequency and duty ratio and make sure that the voltage ripple, current ripple, etc. are satisfied.
Best regards,
\[v_c\]
Added after 22 minutes:
Also take a look at Texas Instruments Reference Designs **broken link removed**
These are design examples that feature a particular type of controller IC.
There is nothing for the 3845 but any generic PWM controller of same type should give you an idea.
It might give you some ideas if your design is still open. If you already have your design and simulation is your only issue -- then please post the
specific errors. I am quite certain I can help you out.
Best regards,
v_c