Invention Grant
- Patent Title: Switching control circuit for target switching element
- Patent Title (中): 目标开关元件的开关控制电路
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Application No.: US14323562Application Date: 2014-07-03
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Publication No.: US09444446B2Publication Date: 2016-09-13
- Inventor: Junichi Fukuta
- Applicant: DENSO CORPORATION
- Applicant Address: JP Kariya
- Assignee: DENSO CORPORATION
- Current Assignee: DENSO CORPORATION
- Current Assignee Address: JP Kariya
- Agency: Nixon & Vanderhye P.C.
- Priority: JP2013-140827 20130704
- Main IPC: H03K3/00
- IPC: H03K3/00 ; H03K17/16 ; H03K17/082 ; H03K17/687 ; H03K3/012 ; H03K17/56 ; H03K19/0175

Abstract:
In a switching control circuit, a determiner determines whether there is one of a first type of abnormality and a second type of abnormality different therefrom in a target switching element and/or the switching control circuit. A controller controls a second switching element to close a low-impedance discharge path for discharging a control terminal of the target switching element when it is determined that there is the first type of abnormality, and disables closing of a high-impedance discharge path for discharging the control terminal while the low-impedance discharge path is closed by the second switching element. The controller controls a third switching element to close the high-impedance discharge path when it is determined that there is the second type of abnormality; and disables closing of the low-impedance discharge path while the high-impedance discharge path is closed by the third switching element.
Public/Granted literature
- US20150008973A1 SWITCHING CONTROL CIRCUIT FOR TARGET SWITCHING ELEMENT Public/Granted day:2015-01-08
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