Title:
DRIVING CIRCUIT AND CONTROL METHOD FOR DRIVING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2023/187863
Kind Code:
A1
Abstract:
Provided is a driving circuit which makes it possible to reduce the amount of surge that occurs during an off operation performed when an overcurrent is detected, while reducing switching loss at a normal operation. The present invention is characterized by comprising: a switching element; an on circuit that injects electric charges to the gate of the switching element in response to a driving signal; a first off circuit that extracts electric charges from the gate of the switching element in response to a driving signal; and a second off circuit that is different from the first off circuit and that extracts electric charges from the gate of the switching element in response to an overcurrent detection signal.
Inventors:
MIZUHASHI YOSHIAKI (JP)
DOI MASAHIRO (JP)
IKUYAMA TAKESHI (JP)
TAI SHINTARO (JP)
DOI MASAHIRO (JP)
IKUYAMA TAKESHI (JP)
TAI SHINTARO (JP)
Application Number:
PCT/JP2022/014850
Publication Date:
October 05, 2023
Filing Date:
March 28, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02M1/08; H03K17/08; H03K17/16
Foreign References:
| JP2019088084A | 2019-06-06 | |||
| JP2021176253A | 2021-11-04 | |||
| JPS63257468A | 1988-10-25 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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