US 12,445,058 B2
DC/DC converter and a method for operating a DC/DC converter
Jakub Kucka, Ecublens VD (CH); and Drazen Dujic, Paudex (CH)
Assigned to Ecole Polytechnique Federale De Lausanne (EPFL), Lausanne (CH)
Appl. No. 18/029,471
Filed by ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL, Lausanne (CH)
PCT Filed Sep. 21, 2021, PCT No. PCT/EP2021/075931
§ 371(c)(1), (2) Date Mar. 30, 2023,
PCT Pub. No. WO2022/073757, PCT Pub. Date Apr. 14, 2022.
Claims priority of application No. 20200583 (EP), filed on Oct. 7, 2020.
Prior Publication US 2023/0378880 A1, Nov. 23, 2023
Int. Cl. H02M 3/335 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/33584 (2013.01) [H02M 1/0009 (2021.05)] 9 Claims
OG exemplary drawing
 
1. A DC/DC converter (1) for transferring an active power between two DC subsystems (5, 6) comprising:
a first converter stage (3) and a second converter stage (4) both configured to be selectively operated as an active inverter or as a passive rectifier;
an AC coupling circuit (2) for coupling the first and the second converter stage (3, 4) by means of an AC power transfer; and
a control unit (10) configured to switch the operation mode of the first and second converter stages (3, 4) depending on a measurement of an amount of power transfer through the AC coupling circuit (2),
wherein the amount of power transfer is detected by a current flow through the AC coupling circuit (2),
wherein a first current sensor (33) between the first converter stage (3) and the AC coupling circuit (2) is provided to measure a first absolute value of a peak current amplitude (I1) flowing into the AC coupling circuit (2) and/or wherein a second current sensor (43) between the second converter stage (4) and the AC coupling circuit (2) is provided to measure a second absolute value of a peak current amplitude (12) flowing into the AC coupling circuit (2).