Title:
CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/077873
Kind Code:
A1
Abstract:
High-side switching elements (700H, 701H) and low-side switching elements (700L, 701L) used as switching elements (70) constituting the upper/lower arms of a plurality of phases constitute a semiconductor module (40). This control device for controlling the drive of the switching elements is provided with: a voltage detection unit (82) for detecting the voltage between the main electrodes of each of the switching elements or the phase voltage of each phase; a determination unit (84) for determining, on the basis of the detected voltage value, whether a short-circuit failure occurs in the switching elements or not; and a drive unit (85) for, when a failure has occurred, turning off the switching element in which the failure has occurred and turning on the switching element having a phase different from that of the switching element in which the failure has occurred and on the same side as the switching element in which the failure has occurred.
Inventors:
MATSUSHITA KOKI (JP)
Application Number:
PCT/JP2018/031117
Publication Date:
April 25, 2019
Filing Date:
August 23, 2018
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H02M7/48; H02P25/22; H02P27/06
Domestic Patent References:
| WO2017150641A1 | 2017-09-08 |
Foreign References:
| JP2009219225A | 2009-09-24 | |||
| JP2013188029A | 2013-09-19 | |||
| JP2012006463A | 2012-01-12 |
Attorney, Agent or Firm:
JIN Shunji (JP)
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