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Patent Searching and Data


Title:
SWITCHING ELEMENT CONTROL CIRCUIT AND POWER MODULE
Document Type and Number:
WIPO Patent Application WO/2018/198211
Kind Code:
A1
Abstract:
This switching element control circuit 100 switches between, and executes, a measurement mode for measuring a threshold voltage of a switching element 200, and a control mode for controlling ON/OFF operation of the switching element 200, wherein the switching element control circuit is characterized by the following: including a power source 10 for threshold voltage measurement, a third electrode voltage control unit 20, an ON/OFF determination unit 30, and a storage unit 40 that stores a third electrode voltage applied to a third electrode as the threshold voltage of the switching element; and the third electrode voltage control unit 20, when turning ON the switching element 200 in the control mode, controlling the third electrode voltage on the basis of information that includes the threshold voltage stored in the storage unit 40. This switching element control circuit 100 makes it possible to reduce switching loss of the switching element, allows reliable control of the ON/OFF operation of the switching element, and enables an improvement in productivity.

Inventors:
SUZUKI, Kenichi (10-13, Minami-cho, Hanno-sh, Saitama 85, 〒3578585, JP)
MIYAZAWA, Wataru (10-13, Minami-cho, Hanno-sh, Saitama 85, 〒3578585, JP)
Application Number:
JP2017/016447
Publication Date:
November 01, 2018
Filing Date:
April 25, 2017
Export Citation:
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Assignee:
SHINDENGEN ELECTRIC MANUFACTURING CO., LTD. (2-1 Ohtemachi 2-chome, Chiyoda-ku Tokyo, 04, 〒1000004, JP)
International Classes:
H03K17/687; H03K17/00; H03K17/14
Foreign References:
JP2006050776A2006-02-16
JP2012157223A2012-08-16
JPH06252395A1994-09-09
Attorney, Agent or Firm:
MATSUO, Nobutaka (MEBUKI Intellectual Property Services, 9862-60 Ochiai, Fujimi-machi, Suwa-gu, Nagano 14, 〒3990214, JP)
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