The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2019
Filed:
May. 18, 2017
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Hidekazu Minami, Kasugai, JP;
Kaoru Hisada, Obu, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
Abstract
In a particulate detection system (), a control board (), a high voltage generation board () and an isolation transformer () are respectively disposed in a first space () and a second space () separated from each other by an inner case (). When electromagnetic noise is generated in the high voltage generation board () and the isolation transformer (); specifically, at the primary winding of the isolation transformer, at the time of switching the primary current supply, the electromagnetic noise is blocked by the inner case (). This configuration reduces the influence of electromagnetic noise generated in the primary winding on the control board ().