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:
Apr. 16, 2019
Filed:
Mar. 04, 2014
Applicant:
Onfilter, Inc., Santa Cruz, CA (US);
Inventor:
Vladimir Kraz, Santa Cruz, CA (US);
Assignee:
OnFILTER, Inc., Santa Cruz, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/01 (2006.01); H03H 3/00 (2006.01); H03H 7/42 (2006.01); H03H 1/00 (2006.01);
U.S. Cl.
CPC ...
H03H 7/0138 (2013.01); H03H 3/00 (2013.01); H03H 7/0115 (2013.01); H03H 7/427 (2013.01); H03H 1/0007 (2013.01); H03H 2007/013 (2013.01);
Abstract
A device and method for reducing ground currents and electromagnetic interference in pulsed signal devices are described. In one embodiment, the device may include, in addition to regular filtering components and circuits, a separate noise-suppressing choke in the ground wire to reduce current in the ground wire that causes damage to bearings and electrical overstress. Such choke may be of a saturation type that offers high inductance and good noise-blocking properties in normal operating conditions and sufficiently low impedance at fail currents which provides proper tripping of safety circuits.