If a mainsVDS = Vin + Vout ⋅ N1N2 voltage of 230V / 50Hz is used will jump up to approximately 700V.
In practice thisVDS voltage will be even higher due to the self induction of the leakage inductance of the transformer.
schmidt-walter.eit.h-da.deBeim Betrieb am 230V / 50Hz-Netz entstehen so bei üblicherUDS = Ue + Ua ⋅ N1N2 Dimensionierung des Sperrwandlers ca. 700V.
In der Praxis liegt diese Spannung sogar noch höher, weil eine Induktionsspannung infolge der Transformatorstreuinduktivi... dazukommt.
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