Patent · US Active

Switching power supply

US10594222B2 · kind B2 · utility

0Cited by

10References

14Claims

0Family size

Assignee

Endress+Hauser SE+Co. KG · DE

Inventors

Simon Weidenbruch · Lörrach, DE
Narcisse Michel Nzitchieu Gadeu · Maulburg, DE
Max Jehle · Wehr, DE

Key dates

Filing date	May 17, 2017
Grant date	Mar 17, 2020
Priority date	—
Expiry date	May 17, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B70/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.