Title:
ゲート駆動回路およびこれを備えた負荷駆動装置
Document Type and Number:
Japanese Patent JP6907662
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a gate drive circuit capable of preventing upper and lower arms from being short-circuited by erroneously turning on a switching element, and a load drive device with the same.SOLUTION: A gate drive circuit comprises: a high potential side driving element Q11 and a low potential side driving element Q12 that are connected in series and whose connection point is connected to a switching element Q1 of a power conversion circuit; a drive control part 30 that controls one of the high potential side driving element and the low potential side driving element into an ON state only when changing a state of the switching element; and a stop-time control part 40 that connects a control terminal of the switching element Q1 to a low potential side while the switching element Q1 is stopped.SELECTED DRAWING: Figure 2
Inventors:
Toshie Miura
Application Number:
JP2017074603A
Publication Date:
July 21, 2021
Filing Date:
April 04, 2017
Export Citation:
Assignee:
Fuji Electric Co., Ltd.
International Classes:
H02M1/08; H02M7/48; H03K17/16; H03K17/687
Domestic Patent References:
| JP2006229454A | ||||
| JP2011193705A | ||||
| JP2007517419A | ||||
| JP9047015A | ||||
| JP2015162979A | ||||
| JP7322622A | ||||
| JP2000059189A | ||||
| JP2006340579A |
Attorney, Agent or Firm:
Ichi Hirose
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