公开(公告)号：US20230006566A1

公开(公告)日：2023-01-05

申请号：US17779744

申请日：2020-11-17

Applicant: LG INNOTEK CO., LTD.

Inventor： Kwang Soon JUNG ,  Kyung Hyun KIM ,  Soo Hong KIM ,  Kyung Rae CHO

IPC: H02M3/335 ,  H02M1/14

Abstract: A DC-DC converter according to an embodiment of the present invention comprises: a switch unit that receives a first DC voltage, separates the first DC voltage into three-phase voltages, and outputs the separated three-phase voltages; a transformation unit that transforms the three-phase voltages output from the switch unit, and outputs a three-phase output voltage; and a rectification unit that rectifies the three-phase output voltage applied from the transformation unit, and outputs a second DC voltage.

公开(公告)号：US20230029203A1

公开(公告)日：2023-01-26

申请号：US17788621

申请日：2020-11-25

Applicant: LG INNOTEK CO., LTD.

Inventor： Kyung Hyun KIM

IPC: H02M1/34 ,  H02M3/335

Abstract: A snubber circuit according to an embodiment of the present invention, which is connected to a secondary side switch of a transformer, comprises: a diode connected to an input terminal of the secondary side switch; a capacitor connected to an output terminal of the diode; a resistor connected in parallel with the capacitor; and a snubber switch for connecting the resistor and ground.