US 12,334,834 B2
DC-DC converter, on-board charger, and electric vehicle
Xiaobin Zhang, Shenzhen (CN)
Assigned to BYD COMPANY LIMITED, Shenzhen (CN)
Filed by BYD COMPANY LIMITED, Guangdong (CN)
Filed on Sep. 29, 2023, as Appl. No. 18/375,422.
Application 18/375,422 is a continuation of application No. 17/050,166, granted, now 11,870,357, previously published as PCT/CN2019/084328, filed on Apr. 25, 2019.
Claims priority of application No. 201810385200.1 (CN), filed on Apr. 26, 2018.
Prior Publication US 2024/0030825 A1, Jan. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H02M 3/335 (2006.01); G01R 15/18 (2006.01); G01R 19/25 (2006.01); H02J 7/00 (2006.01); H02M 1/42 (2007.01); H02M 1/00 (2006.01)
CPC H02M 3/33584 (2013.01) [G01R 15/18 (2013.01); G01R 19/25 (2013.01); H02J 7/007 (2013.01); H02M 1/42 (2013.01); H02M 3/33592 (2013.01); H02J 2207/20 (2020.01); H02M 1/0009 (2021.05)] 15 Claims
OG exemplary drawing
 
1. A DC-DC converter, comprising a first three-phase bridge circuit that comprises:
a first one-phase bridge arm, comprising a first switch and a second switch, wherein a first end of the first switch is connected to a first end of the second switch;
a first primary LC circuit comprising a second capacitor and a first inductor, wherein the first inductor is coupled with a first current signal detector, and the first current signal detector is configured to acquire a current signal of the first inductor;
a first two-phase bridge arm, comprising a third switch and a fourth switch, wherein a first end of the third switch is connected to a first end of the fourth switch;
a second primary LC circuit comprising a third capacitor and a second inductor, wherein the second inductor is coupled with a second current signal detector, and the second current signal detector is configured to acquire a current signal of the second inductor;
a first three-phase bridge arm, comprising a fifth switch and a sixth switch, wherein a first end of the fifth switch is connected to a first end of the sixth switch; and
a third primary LC circuit comprising a fourth capacitor and a third inductor, wherein the third inductor is coupled with a third current signal detector, and the third current signal detector is configured to acquire a current signal of the third inductor,
wherein a second end of the first switch, a second end of the third switch, and a second end of the fifth switch are connected together to form a first end point of the first three-phase bridge circuit, and a second end of the second switch, a second end of the fourth switch, and a second end of the sixth switch are connected together to form a second end point of the first three-phase bridge circuit.