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:
Nov. 22, 2016
Filed:
Aug. 30, 2012
Makoto Torigoe, Tokyo, JP;
Hiroki Funato, Tokyo, JP;
Takashi Suga, Tokyo, JP;
Hideki Osaka, Tokyo, JP;
Yoshiyuki Tsuchie, Tokyo, JP;
Keisuke Fukumasu, Tokyo, JP;
Hitoshi Yokota, Tokyo, JP;
Makoto Torigoe, Tokyo, JP;
Hiroki Funato, Tokyo, JP;
Takashi Suga, Tokyo, JP;
Hideki Osaka, Tokyo, JP;
Yoshiyuki Tsuchie, Tokyo, JP;
Keisuke Fukumasu, Tokyo, JP;
Hitoshi Yokota, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Provided is a noise equivalent circuit for completing an EMC analysis in a practical time and through a low-cost calculation process at an upstream stage of system design. The noise equivalent circuit includes one or more energy sources; a propagation path for propagation of energy from the energy source including a conductive path such as a cable and an electromagnetic field coupling path due to the coupling of an electric field and a magnetic field with another electronic device or cable; and a GND port connected to a system, and each port is represented by the noise voltage source or the noise current source and the internal impedance. This noise equivalent circuit can determine an external impedance that is varied depending on a load connected externally or the distance from an external device or a cable, whereby the noise of the system as a whole can be analyzed.