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Patent Searching and Data


Title:
SEMICONDUCTOR DEVICE AND POWER CONVERSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/158807
Kind Code:
A1
Abstract:
The present invention suppresses erroneous operation of an overcurrent protection circuit caused by the rise of a sense voltage during a mirror period immediately after turning-off of a semiconductor switching element. This semiconductor device is provided with: a semiconductor switching element 12; a sense resistor 16; an overcurrent protection circuit 104 that outputs a control signal for controlling on-driving and off-driving of the semiconductor switching element 12 on the basis of whether the sense voltage exceeds a threshold value; and a diode 36 that clamps the sense voltage. The overcurrent protection circuit 104 outputs, as the control signal, a signal for off-driving the semiconductor switching element 12 when the sense voltage exceeds the threshold value.

Inventors:
YOSHIDA KENTARO (JP)
HIYAMA KAZUAKI (JP)
Application Number:
PCT/JP2017/007708
Publication Date:
September 07, 2018
Filing Date:
February 28, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H03K17/08; H03K17/567
Foreign References:
JP2014064355A2014-04-10
JP2005151631A2005-06-09
JPH06164344A1994-06-10
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (JP)
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