公开(公告)号：US20200033394A1

公开(公告)日：2020-01-30

申请号：US16507969

申请日：2019-07-10

Applicant: Delta Electronics, Inc.

Inventor： Lei-Chung HSING ,  Hsien-Chih OU ,  Chun-Chang HUANG

IPC: G01R31/26

Abstract: A method for determining failure of a power element for use in an electronic device is provided. The electronic device includes a power element and a detection circuit. The method includes the steps of: obtaining a temperature-calculation model of the power element, and obtaining a parameterized temperature-calculation model of a power-element parameter and a parameterized temperature of the power element; detecting load information and the power-element parameter by the detection circuit; calculating a modeled temperature of the power element according to the load information and the temperature-calculation model, and calculating the parameterized temperature of the power element according to the power-element parameter and the parameterized temperature-calculation model; determining whether an error between the modeled temperature and the parameterized temperature exceeds a permitted range; and determining that the power element has failed in response to the error exceeding the permitted range.

公开(公告)号：US20190115139A1

公开(公告)日：2019-04-18

申请号：US15994007

申请日：2018-05-31

Applicant: Delta Electronics, Inc.

Inventor： Tsung-Nan KUO ,  Lei-Chung HSING

IPC: H01F27/245 ,  H01F3/14 ,  H01F27/30 ,  H01F30/12 ,  H02K3/28

CPC classification number: H01F27/245 ,  H01F3/10 ,  H01F3/14 ,  H01F27/306 ,  H01F27/38 ,  H01F30/12 ,  H01F37/00 ,  H01F2003/106 ,  H01F2017/0093 ,  H02K3/28

Abstract: An integrated magnetic element is provided, including a first magnetic-core frame, three second magnetic-core frames, and three coil windings. The first magnetic-core frame has a first side pillar and a second side pillar opposite to the first side pillar. The three second magnetic-core frames are arranged on the side corresponding to the first side pillar of the first magnetic-core frame, and are arranged in parallel with the axis of the first side pillar of the first magnetic-core frame. Each of the second magnetic-core frames has a first side pillar adjacent to the first side pillar of the first magnetic-core frame, and a second side pillar opposite to the first side pillar of itself. The three coil windings connect to a three-phase grid, and wind around the first side pillar of the first magnetic-core frame and the corresponding first side pillar of the second magnetic-core frame respectively.