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:
Feb. 09, 2010
Filed:
Jan. 18, 2006
Applicants:
Hans Peter Etzkorn, Bruchsal, DE;
Juergen Paul, Stutensee-Buechig, DE;
Rolf Merte, Heidelberg, DE;
Inventors:
Assignee:
Beru AG, Ludwigsburg, DE;
Primary Examiner:
Int. Cl.
CPC ...
H05B 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for operating a device in which typically a very high current is generated when the device is turned on compared to the rated current, e.g. an analogue operated PTC heating device for a mobile device, such as a vehicle, is disclosed. In this method, the power on the device is increased in a defined limited manner or in a ramp-like manner in the connection phase to avoid a high current when the device is switched on.