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:
Dec. 17, 2019
Filed:
Oct. 24, 2017
Endress+hauser Conducta Gmbh+co. KG, Gerlingen, DE;
Stefan Pilz, Geithain, DE;
Endress+Hauser Conducta GmbH+Co. KG, Gerlingen, DE;
Abstract
Described is a circuit for supplying power to an electric load connected to the circuit via an interface, and for receiving desired signals transmitted from the electric load by an amplitude modulation, performed by the electric load, of a carrier signal transmitted from the circuit via the interface, said carrier signal serving to supply power to the electric load, with a carrier signal generator that comprises a direct voltage source and a DC-AC converter downstream of the direct voltage source, and with a demodulator for extraction of desired signals modulated by the electric load on the carrier signal, which circuit has a high efficiency without the use of choke coils. The demodulator is designed to extract the desired signals using a current corresponding to a carrier signal current flowing through a current path of the circuit during a transmission of the desired signals, said carrier signal current flowing across the interface.