US 12,308,743 B2
Single inductor converter with current loops in opposite directions
Yuki Ishikura, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Apr. 14, 2023, as Appl. No. 18/134,599.
Claims priority of application No. 2022-094320 (JP), filed on Jun. 10, 2022.
Prior Publication US 2023/0402922 A1, Dec. 14, 2023
Int. Cl. H02M 3/158 (2006.01); H02M 3/00 (2006.01)
CPC H02M 3/158 (2013.01) [H02M 3/003 (2021.05); H02M 3/1584 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power converter comprising:
a substrate;
a first power line;
a second power line with an electrical potential lower than an electrical potential of the first power line;
a first high-side switch including a first terminal connected to the first power line;
a first low-side switch including a first terminal connected to a second terminal of the first high-side switch and a second terminal connected to the second power line;
a first capacitor including a first end connected to the first terminal of the first high-side switch and a second end connected to the second power line;
a second high-side switch that includes a first terminal connected to the first power line and that is parallel or substantially parallel to the first high-side switch;
a second low-side switch including a first terminal connected to a second terminal of the second high-side switch and a second terminal connected to the second power line;
a second capacitor including a first end connected to the first terminal of the second high-side switch and a second end connected to the second power line;
an inductor including a first end connected to the second terminal of the first high-side switch and the second terminal of the second high-side switch;
an output capacitor including a first end connected to a second end of the inductor and a second end connected to the second power line;
a first current loop including the first capacitor, the first high-side switch, and the first low-side switch; and
a second current loop including the second capacitor, the second high-side switch, and the second low-side switch; wherein
in a plan view in a direction perpendicular or substantially perpendicular to a main surface of the substrate, the first power line or the second power line is located between the first current loop and the second current loop, and a direction of current flowing through the first current loop is opposite to a direction of current flowing through the second current loop.