公开(公告)号：US10097081B1

公开(公告)日：2018-10-09

申请号：US15880250

申请日：2018-01-25

Applicant: ACBEL POLYTECH INC.

Inventor： James D. Bucher, II ,  Alan D. Lauer ,  Emma C. Trzynka ,  Jason C. Dehn

IPC: H02M1/34 ,  H02M3/335 ,  H02M1/44

Abstract: The present application is a converter having a low loss snubber. The low loss snubber of the converter includes a clamping winding, a first capacitor, and a second capacitor. The clamping winding is magnetically coupled with a primary winding of a transformer of the converter. The primary winding to a secondary winding of the transformer leakage inductance energy is recovered by storing the energy in the second capacitor. When the second capacitor is discharging, the energy in the second capacitor may be further transferred to the first capacitor. When the first capacitor is discharging, energy in the first capacitor may be further returned to the power source. Therefore, the energy in the first capacitor and the energy in the second capacitor may not be consumed by a resistor, and power consumption of the low loss snubber may be decreased.