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Patent Searching and Data


Title:
SWITCHING CONTROL CIRCUIT, DRIVE CONTROL DEVICE, AND SWITCHING CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/070495
Kind Code:
A1
Abstract:
This switching control circuit controls switching of a first switching element in a bridge circuit including the first switching element on a power supply side and a second switching element on a ground side connected in series to the first switching element via a load, and comprises: an output circuit that when the current of the first and second switching elements becomes an overcurrent and the second switching element is turned off, delays a first drive signal for turning off the first switching element for a predetermined period and outputs the delayed first drive signal, and when the current does not become the overcurrent, outputs a second drive signal for switching the first switching element; and a drive circuit for driving the first switching element on the basis of the output of the output circuit.

Inventors:
OKAYAMA KENICHI (JP)
Application Number:
PCT/JP2020/032077
Publication Date:
April 15, 2021
Filing Date:
August 25, 2020
Export Citation:
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Assignee:
FUJI ELECTRIC CO LTD (JP)
International Classes:
H03K17/08; H02M1/00; H02M1/08; H02M7/48; H03K17/567
Foreign References:
JP2005033678A2005-02-03
JP2004260981A2004-09-16
JP2007312504A2007-11-29
JP2006203415A2006-08-03
Attorney, Agent or Firm:
ISSHIKI & CO. (JP)
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