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Title:
SEMICONDUCTOR DC BREAKER AND SEMICONDUCTOR MODULE
Document Type and Number:
WIPO Patent Application WO/2024/038640
Kind Code:
A1
Abstract:
Provided is a semiconductor DC breaker which has redundancy so as to be able to cut off a current even if a semiconductor switching element for cutting off a current when an abnormal current is detected has failed. This semiconductor DC breaker 1 having a semiconductor switching element 21 for cutting off a main current when an abnormal current is detected comprises: a fuse 25 connected to the semiconductor switching element 21 in series; an abnormal current detection unit 11 that detects an abnormal current; and a gate drive unit 12 that turns off the semiconductor switching element 21 when the abnormal current detection unit 11 has detected an abnormal current. The magnitude of the abnormal current at which the semiconductor switching element 21 is to be turned off is set so as to be smaller than that of the fusing current of the fuse 25.

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Inventors:
KAWASE DAISUKE (JP)
SASAKI KOJI (JP)
MAEDA DAISUKE (JP)
TOMIYASU KUNIHIKO (JP)
KUSHIMA TAKAYUKI (JP)
FURUKAWA TOMOYASU (JP)
Application Number:
PCT/JP2023/014742
Publication Date:
February 22, 2024
Filing Date:
April 11, 2023
Export Citation:
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Assignee:
HITACHI POWER SEMICONDUCTOR DEVICE LTD (JP)
International Classes:
H01L25/07; H01L23/58; H01L25/18; H02H3/08; H02J1/00
Foreign References:
JP2022016749A2022-01-25
JP2012029429A2012-02-09
JP2019047549A2019-03-22
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
Download PDF:
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