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. 21, 2026
Filed:
Oct. 21, 2022
Sma Solar Technology Ag, Niestetal, DE;
Alexander Unru, Baunatal, DE;
Arno Gerth, Kassel, DE;
Ralf Juchem, Felsberg, DE;
Tobias Becker, Kassel, DE;
SMA Solar Technology AG, Niestetal, DE;
Abstract
The application describes a method for operating an electrolyzer to generate hydrogen from water using an electrolysis reaction, supplied with power from an AC grid via an actively controlled rectifier circuit. The method includes operating the electrolyzer in a normal operating mode with an input voltage Uabove a no-load voltage Uwith predominantly ohmic behavior, operating the electrolyzer in a standby operating mode with an input voltage Ubelow the no-load voltage Uwith predominantly capacitive behavior, and transitioning from the standby operating mode to the normal operating mode during a first transition duration Δt, wherein the first transition duration Δtis reduced by keeping the input voltage Uat the electrolyzer input during the standby operating mode above a first voltage threshold value Udifferent from 0V. The application furthermore describes a connection circuit, an actively controlled rectifier circuit and an electrolysis system for performing the method.