My group and I are trying to build a transformized h-bridge dc-dc converter. I was hoping to model this on spice, but have had no luck so far. First I am trying to use an ideal transformer but do not see how you enter the turns ratio to make it step up at the right ratio. Also I was hoping to try to simulate the PWM using the ti494 pwm chip. I know that this chip is still produced by TI, but cannot seem to find the model in Pspice. I am using Orcad Capture CIS. Can this be found in one of the libraries on p-spice. If so what is it called. If this part is not able to be used on this software is there any other parts that would work for my h-bridge simulation. Thanks in advance for any help. Don't know if this is needed but the mosfets on the primary side are MbreakN and all the diodes used are D1N3940.
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