US 12,009,750 B2
Power source device
Kazuki Sasao, Tokyo (JP); Etsuji Kaneko, Tokyo (JP); and Hideki Ito, Chiba (JP)
Assigned to Sony Interactive Entertainment Inc., Tokyo (JP)
Appl. No. 17/283,723
Filed by Sony Interactive Entertainment Inc., Tokyo (JP)
PCT Filed Oct. 18, 2019, PCT No. PCT/JP2019/041098
§ 371(c)(1), (2) Date Apr. 8, 2021,
PCT Pub. No. WO2020/080526, PCT Pub. Date Apr. 23, 2020.
Claims priority of application No. 2018-197715 (JP), filed on Oct. 19, 2018.
Prior Publication US 2021/0328515 A1, Oct. 21, 2021
Int. Cl. H02M 3/158 (2006.01)
CPC H02M 3/1588 (2013.01) [H02M 3/1584 (2013.01); H02M 3/1586 (2021.05)] 7 Claims
OG exemplary drawing
 
1. A power source device comprising:
an input line that receives a supply of a direct-current input voltage; an output line that is connected to a load;
N inductors that correspond to N phases and each have one end connected to the output line, where N is an integer greater than zero and the N inductors are mounted to a main mounting surface of a printed circuit board; and
N power modules that correspond to the N phases and each have an input pin, a switching
pin, and a ground pin, the input pin being connected to the input line, the switching pin being connected to another end of a corresponding inductor, the ground pin being grounded, wherein:
at least one of the N power modules is mounted on a sub-mounting surface that is opposite to the main mounting surface of the printed circuit board,
the N inductors are linearly arranged in a first direction, wherein the first direction is an X-direction of the printed circuit board, and
an i-th (i=1 to N) power module is disposed adjacently in a second direction, wherein the second direction is a Y-direction of the printed circuit board, to a corresponding i-th inductor, the second direction being perpendicular to the first direction.