US 11,777,411 B2
Resonant power converter for wide voltage switching
Rohit Baranwal, Oak Park, MI (US); Devendra Patil, Oak Park, MI (US); Zhe Zhang, Ann Arbor, MI (US); Lewei Qian, Novi, MI (US); Miroslav Horejs, Miskovice (CZ); and Guangqi Zhu, Pewaukee, MI (US)
Assigned to EATON INTELLIGENT POWER LIMITED, Dublin (IE)
Appl. No. 17/632,020
Filed by Eaton Intelligent Power Limited, Dublin (IE)
PCT Filed Aug. 3, 2020, PCT No. PCT/EP2020/025355
§ 371(c)(1), (2) Date Feb. 1, 2022,
PCT Pub. No. WO2021/023398, PCT Pub. Date Feb. 11, 2021.
Claims priority of provisional application 62/944,808, filed on Dec. 6, 2019.
Claims priority of provisional application 62/916,862, filed on Oct. 18, 2019.
Claims priority of provisional application 62/882,035, filed on Aug. 2, 2019.
Prior Publication US 2022/0286055 A1, Sep. 8, 2022
Int. Cl. H02M 3/335 (2006.01); H02J 7/06 (2006.01); H02M 1/42 (2007.01)
CPC H02M 3/33569 (2013.01) [H02J 7/06 (2013.01); H02M 1/4241 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A resonant converter device for varying resonant impedance, comprising:
a selectable primary winding comprising a plurality of circuit legs, the selectable primary winding comprising one or more of a tapped primary winding or a plurality of switchable primary windings;
at least one secondary winding coupled to the selectable primary winding to form a resonant transformer, the at least one secondary winding comprising at least a second circuit leg;
at least one resonant inductor coupled to at least one of the plurality of circuit legs or coupled to the second circuit leg;
a plurality of resonant capacitors, each circuit leg of the plurality of circuit legs comprising at least a respective one of the plurality of resonant capacitors coupled within the each circuit leg, and at least a second resonant capacitor of the plurality of resonant capacitors coupled within the second circuit leg; and
one or more switching devices connected to the resonant transformer and configured to selectively vary a resonant impedance of the resonant converter device when a voltage inputted to the resonant converter device varies.