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.

Date of Patent:
Apr. 30, 2024

Filed:

Apr. 13, 2022
Applicant:

Osram Gmbh, Munich, DE;

Inventor:

Joachim Muehlschlegel, Groebenzell, DE;

Assignee:

Inventronics GmbH, Munich, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 19/00 (2006.01); G01R 19/02 (2006.01); H02M 1/00 (2006.01); H02M 1/32 (2007.01); H02M 3/156 (2006.01); H05B 45/3725 (2020.01);
U.S. Cl.
CPC ...
G01R 19/02 (2013.01); H02M 1/0009 (2021.05); H02M 1/32 (2013.01); H02M 3/156 (2013.01); H05B 45/3725 (2020.01);
Abstract

A current measuring device for switched-mode electronic power converters includes two independent sensors connected in series for the current to be measured, one of said sensors providing an admittance and the other providing a conductance. The current measuring device further includes a parallel current measuring resistor and an average value capacitor which are connected in parallel contribute to the provided admittance. The conductance is provided by a serial current measuring resistor as one of the sensors. The current to be measured has both DC and AC current components. The current measuring device further includes a filter is transferred back into the power path or merged with the current measuring sensors.


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