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. 03, 2020
Filed:
Jul. 24, 2018
Fuji Electric Co., Ltd., Kanagawa, JP;
Miwako Fujita, Tokyo, JP;
FUJI ELECTRIC CO., LTD., Kawasaki-shi, Kanagawa, JP;
Abstract
The present invention relates to a surge suppression circuit connected between an output end of an inverter INV and a cableto drive a motor M that is connected to the output end of the inverter INV via the cable, and relates to a motor drive system in which the surge suppression circuit is used. The surge suppression circuitincludes an inductance L and a resistor R connected in parallel with the inductance L. The resistor R is set so as to match, or so as to be less than, an impedance of zero-phase component of the cable. A surge suppression circuit and an inverter drive motor system are enabled to be applied to a low-voltage small-capacity inverter with no DC voltage neutral terminal, and enabled to reduce the zero-component of the surge voltage according to the connection to the output end of the inverter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile