US 12,267,014 B2
Non-isolated DCDC resonant conversion control circuit and control method
Yaqoob Muhammad, Kista (SE); Shengyong Dai, Dongguan (CN); Qingzu Hong, Shenzhen (CN); Xiao Zhang, Xi'an (CN); and Grover Victor Torrico-Bascopé, Kista (SE)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Oct. 28, 2022, as Appl. No. 17/976,010.
Application 17/976,010 is a continuation of application No. PCT/CN2021/087996, filed on Apr. 19, 2021.
Claims priority of application No. 202010360907.4 (CN), filed on Apr. 29, 2020.
Prior Publication US 2023/0053061 A1, Feb. 16, 2023
Int. Cl. H02M 3/158 (2006.01); H02M 1/00 (2006.01); H02M 3/00 (2006.01)
CPC H02M 3/158 (2013.01) [H02M 1/0058 (2021.05); H02M 3/01 (2021.05); H02M 3/1582 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A non-isolated DC-DC resonant conversion control circuit, comprising an input interface, a first switching transistor, a second switching transistor, a third switching transistor, a fourth switching transistor, an inductor, a capacitor, and an output interface, wherein
the first switching transistor and the second switching transistor, that are connected in series with each other, are coupled to the input interface in series;
the third switching transistor and the fourth switching transistor, that are connected in series with each other, are coupled to the output interface in series;
the inductor and the capacitor, that are connected in series with each other, are coupled between an end A that is a node on which the first switching transistor and the second switching transistor are connected in series and an end B that is a node on which the third switching transistor and the fourth switching transistor are connected in series; and
a negative electrode of the input interface is coupled to a negative electrode of the output interface, or a positive electrode of the input interface is coupled to a positive electrode of the output interface, wherein:
a phase shift angle θ of a voltage between the input interface and the output interface satisfies

OG Complex Work Unit Math
Vin is a voltage of the input interface, and Vout is a voltage of the output interface; and/or
output power P0 of the output interface is

OG Complex Work Unit Math
Vin is the voltage of the input interface, Vout is the voltage of the output interface, fs is a switching frequency, L is an inductance value of the inductor, and C is a capacitance value of the capacitor.