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:
Mar. 17, 2020
Filed:
May. 17, 2017
Endress+hauser Se+co. KG, Maulburg, DE;
Simon Weidenbruch, Lörrach, DE;
Narcisse Michel Nzitchieu Gadeu, Maulburg, DE;
Max Jehle, Wehr, DE;
Endress+Hauser SE+Co. KG, Maulburg, DE;
Abstract
Described is an explosion endangered region usable, switching power supply for supplying an output voltage controlled to a desired value, comprising a supply path, which includes a switching controller controlled via a driver, a galvanically isolated transformer connected after the switching controller, and, connected after the transformer, a rectifier-containing, output circuit, and a feedback path, via which the driver is fed a signal transmitted via a light source and a light receiver and reflecting the output voltage, based on which the driver controls the output voltage to the desired value via a corresponding operation of the switching controller. The feedback path includes a voltage regulator, which regulates a supply voltage falling across the light source to a fixed value, and an electrical current regulator, which regulates an electrical current flowing through the light source to an electrical current value corresponding to the output voltage.