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.:

US 12607657 B1

Date of Patent:

Apr. 21, 2026

Filed:

Aug. 04, 2021

Method and apparatus for ascertaining an average choke current or an input or output voltage in a step-up or step-down converter

Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Dennis Bura, Renningen, DE;

Markus Michels, Stuttgart, DE;

Michael Jiptner, Renningen, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:

Michael Best & Friedrich LLP

Primary Examiner:

Alexander Satanovsky

Int. Cl.

CPC ...

G01R 19/25 (2006.01); G01R 19/175 (2006.01); H02M 3/158 (2006.01);

U.S. Cl.

CPC ...

G01R 19/2503 (2013.01); G01R 19/175 (2013.01); H02M 3/158 (2013.01);

Abstract

Method () for ascertaining a parameter (I_avg, I_N, I_P, V_c), wherein the parameter (I_avg, I_N, I_P, V_c) characterizes a current or a voltage in a circuit arrangement (). The circuit arrangement () comprises an inductor (L) through which an alternating choke current (I_L) flows. The method comprises the steps of: ascertaining () at least one duration (TN) between two zero crossings (N_−, N_+) of the choke current (I_L), or a duration (TNE) between a zero crossing (N_−, N_+) and a vertex (E_−, E_+) of the choke current (I_L); ascertaining () the parameter (I_avg, I_N, I_P, V_c) as a function of the ascertained duration (TN, TNE).

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