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Title:
DRIVE CIRCUIT FOR SWITCH
Document Type and Number:
WIPO Patent Application WO/2020/044945
Kind Code:
A1
Abstract:
Drive circuits (DrH, DrL) comprise: a surge detector (44, 64) for detecting a surge voltage produced with the changing of the switching state of a switch (SWH, SWL); an adjustment unit (42, 62) for adjusting, on the basis of the surge voltage detected by the surge detector, the switching speed of the switch when the switching state of the switch is changed; and a mask processor for preventing the voltage detected by the surge detector during a period other than the period in which a surge voltage is expected to be produced with the changing of the switching state of the switch from being used for adjustment of the switching speed in the adjustment unit.

Inventors:
KONDO YOHEI (JP)
Application Number:
PCT/JP2019/030428
Publication Date:
March 05, 2020
Filing Date:
August 02, 2019
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
H02M1/00; H02M1/08; H03K17/16; H03K17/687
Domestic Patent References:
WO2015145735A12015-10-01
Foreign References:
JP2016174454A2016-09-29
JP2009083710A2009-04-23
JP2009278756A2009-11-26
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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