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Title:
CONTROL CIRCUIT FOR SEMICONDUCTOR SWITCHING ELEMENT, AND SEMICONDUCTOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/033304
Kind Code:
A1
Abstract:
This control circuit for a semiconductor switching element controls a semiconductor switching element, wherein a control terminal, a main electrode terminal, and a current sense terminal are provided, and a diode is connected to the main electrode terminal or the current sense terminal. The control circuit is provided with an overheat detection circuit, a current detection circuit, and an interruption circuit. The overheat detection circuit transmits an overheat detection signal when a temperature detected on the basis of an output of the diode is equal to or higher than a predetermined set temperature. The current detection circuit transmits a current detection signal when an output value of the current sense terminal is equal to or higher than a predetermined set current value. The interruption circuit turns off the semiconductor switching element in the cases where both the overheat detection signal transmitted from the overheat detection circuit, and the current detection signal transmitted from the current detection circuit are inputted.

Inventors:
YAMAMOTO, Koji (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
KAWAMOTO, Atsunobu (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
GODO, Shinsuke (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2015/073981
Publication Date:
March 02, 2017
Filing Date:
August 26, 2015
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F02P3/055; H03K17/00; H03K17/08
Foreign References:
JP2009275629A2009-11-26
JP2005098143A2005-04-14
JP2008248777A2008-10-16
JP2011124269A2011-06-23
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (Takada, Takahashi & Partners Konwa Bldg. 7F, 12-22 Tsukiji 1-chome, Chuo-k, Tokyo 45, 〒1040045, JP)
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