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:
Sep. 16, 1997
Filed:
Jun. 05, 1995
Applicant:
Inventor:
Koichi Murakami, Yokosuka, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257106 ; 257355 ; 257356 ; 257362 ; 257363 ;
Abstract
An input protection device comprises a current limiting resistor externally connected to an integrated circuit which includes two Zener diodes, one functioning as a power supply Zener diode and the other functioning as a ground Zener diode. Owing to the resistance of the current limiting resistor and junction capacitances of the Zener diodes, electromagnetic interference noise is effectively damped or attenuated.