公开(公告)号：US20190316855A1

公开(公告)日：2019-10-17

申请号：US16185428

申请日：2018-11-09

Applicant: Delta Electronics, Inc.

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

IPC: F28F27/00

Abstract: A thermal abnormality detection system includes: a first heat dissipation system having a first temperature sensor for measuring an actual temperature of the first heat dissipation system; a second heat dissipation system having a second temperature sensor for measuring an actual temperature of the second heat dissipation system. Assuming that a difference between the actual temperature of the first heat dissipation system and an upper limit temperature of the first heat dissipation system is d1, and a difference between the actual temperature of the second heat dissipation system and an upper limit temperature of the second heat dissipation system is d2, when a value of d1−d2 is greater than an error threshold value Error1_level, the first heat dissipation system is determined to be abnormal, and when the value of d1−d2 is less than an error threshold value Error2_level, the second heat dissipation system is determined to be abnormal.

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.