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:
Jul. 02, 2019
Filed:
Nov. 26, 2018
Leopold Kostal Gmbh & Co. KG, Luedenscheid, DE;
Leopold Kostal GmbH & Co. KG, Luedenscheid, DE;
Abstract
A bidirectional DC converter assembly includes two serially-arranged DC/DC converters. The first converter is a buck (or a buck/boost) converter to be connected to a high-voltage (HV) level of an electric vehicle. The second converter is a series resonant switching converter to be connected to a low-voltage (LV) of the vehicle. The series resonant switching converter of the second converter is formed by a DC/AC converter, a transformer, and an AC/DC converter, which are serially arranged in the stated order between the first converter and the LV level. A bidirectional peak current controller is associated with the first converter. The peak current controller is realized by a current measurement at an inductor of the first converter. The peak current controller uses the coil current value, which is modified with an offset value and thus has a constant sign, as a set point in controlling the first converter.