Title:
ABNORMALITY DETECTION CIRCUIT, MOTOR DRIVE DEVICE, MOTOR SYSTEM, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2024/053240
Kind Code:
A1
Abstract:
This abnormality detection circuit is configured so as to detect abnormality of a first half bridge including a first switching element and a second switching element. The abnormality detection circuit includes: a series circuit of a first switch and a first resistor provided between a first node which is a connection node for the first switching element and the second switching element and a second node configured so as to have a first constant voltage applied thereto; and a first comparator configured so as to compare a first reference voltage and a voltage corresponding to the voltage of the first node.
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Inventors:
FUJIMURA TAKASHI (JP)
Application Number:
PCT/JP2023/025701
Publication Date:
March 14, 2024
Filing Date:
July 12, 2023
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
H02P29/00
Foreign References:
| JP2018085923A | 2018-05-31 | |||
| JP2009254199A | 2009-10-29 | |||
| JP2017139906A | 2017-08-10 |
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
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