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. 27, 2007
Filed:
Jan. 24, 2005
Applicants:
Pekka Jahkonen, Hyvinkaa, FI;
Esa Putkinen, Hyvinkaa, FI;
Inventors:
Pekka Jahkonen, Hyvinkaa, FI;
Esa Putkinen, Hyvinkaa, FI;
Assignee:
Kone Corporation, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/34 (2006.01); H02M 7/5387 (2006.01); H02P 5/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A DC/DC bridge having a power stage provided with controllable semiconductor switches controls a direct currently load, and comprises two bridge sections, one of which bridge sections conducts direct currently while the other bridge section is controlled via pulse width modulation to regulate the current magnitude. Two of three bridge arms of the DC/DC bridge are connected in parallel and semiconductor switches in the parallel-connected bridge arms are controlled via pulse width modulation to form a pulse width modulation controlled bridge section.