DI-163, TNY277PN, Wide Range Set Top Box Power Supply with Latching Overvoltage (OVP) Shutdown Protection

DI-163, Reference Design for TNY277PN, Wide Range Set Top Box Power Supply with Latching Overvoltage Shutdown Protection. Diodes D1, D2, D3 and D4 and capacitors C2 and C3 rectify and smooth the AC input. Capacitors C2, C3, C8 and inductor L2 provide differential as well as common-mode EMI filtering