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:
Apr. 14, 2020
Filed:
Apr. 10, 2015
Denso Corporation, Kariya, Aichi-pref., JP;
Takashi Oono, Kariya, JP;
Shunichi Takeda, Kariya, JP;
Kanechiyo Terada, Kariya, JP;
Yuuto Tamei, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A maximum value of a discharge current from a capacitor, detected by a primary-side current detection meansdisposed at a grounded end of the capacitor, is controlled such as not to exceed a predetermined first control value Y. The first control value Yis derived based on magnetic saturation of a primary winding, with the control being performed by controlling the on-off state of an energy injection switching means. As a result, magnetic saturation of the primary windingcan be prevented, and the reliability of an ignition apparatus which incorporates an energy injection circuitcan be increased.