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:
Mar. 20, 2018
Filed:
Apr. 15, 2014
Denso Corporation, Kariya, Aichi-pref., JP;
Motoo Yamaguchi, Anjo, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A drive control circuit includes: a first protection circuit connected between a signal input line and a ground line and clamps a voltage of AC noise superimposed on the signal input line at one clamp level; a second protection circuit connected between the signal input line and the ground line and clamps the voltage of the AC noise superimposed on the signal input line at an other clamp level; and a drive signal generation circuit generating the drive signal based on a comparison between a voltage in the signal input line and Vt. The input signal has binary levels including an L-level voltage VL and an H-level voltage VH, and a mean voltage of the AC noise is lower than a differential voltage between Vt and VL and higher than a differential voltage between Vt and VH.