Title:
DRIVING DEVICE AND DRIVING METHOD FOR SEMICONDUCTOR SWITCH, POWER CONVERSION DEVICE, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/100349
Kind Code:
A1
Abstract:
Provided is a driving device for a semiconductor switch, the driving device that drives semiconductor switch having no body diode and having a lower threshold voltage than a threshold voltage for a silicon device, wherein the threshold voltage is used to turn the semiconductor switch off and on. The driving device includes a first driving voltage switching circuit which switches a driving voltage for the semiconductor switch to a first adjustment voltage between an off voltage and an on voltage at a specified time point immediately before a timing when the semiconductor switch is driven from the off state to the on state, and a second driving voltage switching circuit which switches the driving voltage for the semiconductor switch to the on voltage at a timing when the semiconductor switch is driven from the off state to the on state after the first driving voltage switching circuit switches the driving voltage for the semiconductor switch.
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Inventors:
HIROTA MASAYOSHI (JP)
TASHIRO KEIJI (JP)
TASHIRO KEIJI (JP)
Application Number:
PCT/JP2019/028974
Publication Date:
May 22, 2020
Filing Date:
July 24, 2019
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H02M3/28; H02M1/08; H03K17/695
Foreign References:
| JP2017221103A | 2017-12-14 | |||
| JP2015012624A | 2015-01-19 | |||
| JP2016012861A | 2016-01-21 | |||
| JP2016092884A | 2016-05-23 |
Attorney, Agent or Firm:
SHIMIZU, Satoshi et al. (JP)
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