US 12,255,523 B2
Soft-switching modulation for active clamped phase-shift full-bridge converter
Siyuan Chen, Santa Clara, CA (US); and Michael George Negrete, Cupertino, CA (US)
Assigned to Analog Devices, Inc., Wilmington, MA (US)
Filed by Analog Devices, Inc., Wilmington, MA (US)
Filed on Nov. 8, 2022, as Appl. No. 18/053,564.
Prior Publication US 2024/0154516 A1, May 9, 2024
Int. Cl. H02M 7/219 (2006.01); H02M 1/00 (2006.01); H02M 7/04 (2006.01)
CPC H02M 1/0058 (2021.05) [H02M 1/0043 (2021.05); H02M 7/05 (2021.05); H02M 7/219 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A soft-switching Phase-Shift Full-Bridge (PSFB) converter system, comprising:
a PSFB converter circuit, including:
a transformer comprising a primary side and a secondary side;
phase-leading circuitry located on the primary side of the transformer;
phase-lagging circuitry located on the primary side of the transformer; and
clamping circuitry coupled to the secondary side of the transformer, wherein the clamping circuitry is configurable to, when in an active clamping mode, short the secondary side of the transformer.