Need Clarification on PI Expert

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<p>Hi</p>
<p>We are designed powersupply and flyback transformer using the steps explained in&nbsp; AN-16,and specification for power supply as follows</p>
<p>Input Range-85V to 115V AC</p>
<p>Output 12 V</p>
<p>Current 2 A</p>
<p>As per the AN-16 we&nbsp; are assumed VRO as a60V</p>
<p>But when we are designing using PI Expert for the same power supply specification we could get the VRO of 111.5 V in the simulation result</p>
<p>So we bit confused in choosing the VRO,please help us how to assume the VRO for design</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>

Hi
We are designed powersupply and flyback transformer using the steps explained in&nbsp; AN-16,and specification for power supply as follows
Output 12 V
Current 2 A
As per the AN-16 we&nbsp; are assumed VRO as a60V
But when we are designing using PI Expert for the same power supply specification we could get the VRO of 111.5 V in the simulation result
So we bit confused in choosing the VRO,please help us how to assume the VRO for design