Invention Grant
- Patent Title: Driving device for semiconductor element
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Application No.: US16252131Application Date: 2019-01-18
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Publication No.: US10812062B2Publication Date: 2020-10-20
- Inventor: Haruhiko Murakami , Ryo Goto , Shiori Uota , Koichiro Noguchi , Motoki Imanishi
- Applicant: Mitsubishi Electric Corporation
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: Studebaker & Brackett PC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@19d173d3
- Main IPC: H03K17/082
- IPC: H03K17/082 ; H03K17/18 ; G08B21/18 ; H02H9/02 ; H03K17/08

Abstract:
A driving device for a semiconductor element includes: a plurality of detection circuits that detect different types of abnormalities of the semiconductor element; a logic circuit that generates an error signal when at least one of the detection circuits detects an abnormality; an alarm signal generating circuit that receives the error signal and generates an alarm signal made of one or a plurality of pulses, the alarm signal having a different pulse width for each of the detection circuits that has detected an abnormality; and a protection operation determining circuit that determines whether or not a protection function of the semiconductor element is operating based on the error signal and the alarm signal, and shuts off input of a drive signal to the semiconductor element when it is determined that the protection function is operating.
Public/Granted literature
- US20190326897A1 DRIVING DEVICE FOR SEMICONDUCTOR ELEMENT Public/Granted day:2019-10-24
Information query
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