Title:
GATE DRIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/047868
Kind Code:
A1
Abstract:
The purpose of the present invention is to achieve a gate driving device capable of further reducing noise than the prior art. This gate driving device (100) comprises: an instruction generation circuit (20) which generates and outputs a gate driving instruction on the basis of an input signal (Vin); a constant output circuit (10) which is connected in parallel with the instruction generation circuit (20) and outputs a constant voltage signal on the basis of the input signal (Vin); a complementary emitter follower circuit (30) which amplifies the gate driving instruction; and a current restriction element (82) which is provided on the input side or the output side of the complementary emitter follower circuit (30) and suppresses a reverse flow of current, wherein a gate driving voltage obtained by synthesizing the gate driving instruction and the constant voltage signal is applied to a gate terminal of a semiconductor switching element (92).
Inventors:
TOYODA HAJIME (JP)
ONDA KOHEI (JP)
ONDA KOHEI (JP)
Application Number:
PCT/JP2022/033129
Publication Date:
March 07, 2024
Filing Date:
September 02, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02M1/08
Foreign References:
| JP2020036424A | 2020-03-05 | |||
| JP2004048959A | 2004-02-12 | |||
| JP2007088599A | 2007-04-05 |
Attorney, Agent or Firm:
PALMO PATENT FIRM, P.C. (JP)
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