How is an isolated flyback (two winding) inductor/converter modeled?

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Keng Wu
Keng Wu on 11 Jul 2014
During the on-time, the main power switch and the inductor primary builds up current to a peak Ip at the time t=DT. At this time, the switch turns off and the secondary winding turns on. The secondary winding current starts with a peak Is and ramps down. At the time t=DT, ampere-turn conservation holds; that is NpIp=NsIs, or Is=(Np/Ns)Ip.
What SIMULINK inductor element, or block, is capable of representing the action maintaining ampere-turn continuity every switching cycle?

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