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. 01, 2020
Filed:
May. 24, 2016
Ebm-papst Mulfingen Gmbh & Co.kg, Mulfingen, DE;
Fabian Schneider, Rot am See, DE;
Daniel Koenig, Gerabronn, DE;
ebm-papst Mulfingen GmbH & Co.KG, Mulfingen, DE;
Abstract
The present invention relates to an overvoltage protection circuit () for protecting the electronics of a motor, in particular of an EC motor, against overvoltage pulses, with two protective devices (FS, FS) arranged in series connection between two connections (), wherein a resistor (R) or (R) is connected in parallel to each of the protective devices (FS, FS) and at least one capacitive element (C) is provided in parallel connection to the first protective device (FS), wherein the overvoltage protection circuit () has, between the connections (), at least a first (lower) and a second (higher) breakdown voltage point at a voltage Uor Udependent on the voltage change over time k=(dU/dt) of a voltage Uat the connections ().