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Title:
DRIVING DEVICE OF SEMICONDUCTOR SWITCH
Document Type and Number:
WIPO Patent Application WO/2018/163559
Kind Code:
A1
Abstract:
According to the present invention, a charging terminal and a discharging terminal are connected to a conduction control terminal of a semiconductor switch. The present invention is provided with: a charging path that has a charging terminal and a charging switch allowing charging current to flow in a conduction control terminal of each of a plurality of semiconductor switches when switched to an ON-state; and a discharging path that has a discharging terminal and a discharging switch allowing discharging current to flow between each conduction control terminal and a low potential-side conduction terminal when switched to an OFF-state. A charging-side conduction element is disposed on a charging-side loop path forming a portion of the charging path, and causes the charging current to flow in a conduction state. A discharging-side conduction element is disposed on a discharging-side loop path forming a portion of the discharging path, and causes the discharging current to flow in a conduction state. A voltage detection unit is connected to a current output terminal of the charging-side conduction element and/or the discharging-side conduction element, and a resistor element is connected in parallel with the charging-side conduction element and/or the discharging-side conduction element. At least the charging switch, the discharging switch, and the voltage detection unit are configured as a drive IC.

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Inventors:
YAMAUCHI KAZUKI (JP)
SENDA YASUTAKA (JP)
Application Number:
JP2017/045322
Publication Date:
September 13, 2018
Filing Date:
December 18, 2017
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
H02M1/08; H02M7/48; H03K17/16; H03K17/567
Domestic Patent References:
WO2017026367A12017-02-16
Foreign References:
JP2012244720A2012-12-10
JPH10313570A1998-11-24
JP2013247734A2013-12-09
Attorney, Agent or Firm:
SATO INTERNATIONAL PATENT FIRM (JP)
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