US 12,294,307 B2
System and methods for reducing auxiliary transformer winding turns
Xiucheng Huang, Torrance, CA (US); Bin Li, Pleasanton, CA (US); Weijing Du, Torrance, CA (US); and Yun Zhou, Shenzhen (CN)
Assigned to NA VITAS SEMICONDUCTOR LIMITED, Dublin (IE)
Filed by Navitas Semiconductor Limited, Dublin (IE)
Filed on Aug. 24, 2022, as Appl. No. 17/822,112.
Claims priority of provisional application 63/263,991, filed on Nov. 12, 2021.
Claims priority of application No. 202110994393.2 (CN), filed on Aug. 27, 2021.
Prior Publication US 2023/0067022 A1, Mar. 2, 2023
Int. Cl. H02M 3/335 (2006.01)
CPC H02M 3/33523 (2013.01) 20 Claims
OG exemplary drawing
 
1. A circuit comprising:
a transformer having a primary winding, a secondary winding and an auxiliary winding having a first end and a second end, wherein the first end is directly coupled to a ground;
a diode having a cathode and an anode, the anode coupled to the first end of the auxiliary winding; and
a capacitor having a first terminal coupled to the second end of the auxiliary winding, and a second terminal coupled to the cathode.