Title:
SEMICONDUCTOR DEVICE AND POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/275981
Kind Code:
A1
Abstract:
In a semiconductor device (100) for controlling driving of a semiconductor element (10), a current control unit (1) is provided with a pulse current source (20) for causing current to flow between a negative electrode terminal (S) and a control terminal (G) of the semiconductor element (10). A timing control unit (3) causes the pulse current source (20) to output pulsed current during an on-period after the semiconductor element has transitioned to an on-state or during an off-period after the semiconductor element has transitioned to an off-state. A temperature estimation unit (7) estimates the temperature of the semiconductor element (10) on the basis of changes in current and voltage caused by current supplied from the pulse current source (20).
Inventors:
KAWAHARA CHIHIRO (JP)
MOROKUMA KENICHI (JP)
MOROKUMA KENICHI (JP)
Application Number:
PCT/JP2021/024522
Publication Date:
January 05, 2023
Filing Date:
June 29, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02M1/08; H01L29/78
Foreign References:
| JP2016012670A | 2016-01-21 | |||
| JP6218156B2 | 2017-10-25 | |||
| JP2019519182A | 2019-07-04 | |||
| JP2019024274A | 2019-02-14 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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