High efficiency: While the DCR snubber is always lost, the power clamper operates only when necessary, thus improving efficiency especially at light loads.
High reliability: There is no deterioration over time against repeated surge.

In a transformer design where 0 <α <(VQ (MAX) - VNP - Vin), VCL that satisfies VNP The closer the VCL value is to the VNP voltage, the larger the power clamper loss. Conversely, the closer it is to the (VQ (MAX) × β - Vin) voltage, the smaller the loss.