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:
Nov. 03, 2026
Filed:
Jan. 10, 2024
Siemens Industry Software NV, Leuven, BE;
Arif Mustafazade, Breda, NL;
Siemens Industry Software NV, Leuven, BE;
Abstract
An electrical constant current circuit (CCC) in particular for supplying electrical power to a sensor, the circuit (CCC) including a power supply input terminal (INT), a constant current output terminal (OUT), a first transistor (TRF), and a shunt-type voltage reference (RVS), wherein the base of the first transistor (TRF) is biased by the shunt-type voltage reference (SVR) in series with the base-emitter junction of the second transistor (TRS), wherein the emitter of the first transistor (TRF) is connected to the power supply input terminal (INT) via a current set resistor (RST), wherein the collector of the first transistor (TRF) is connected to the output terminal (OUT) through a Schottky diode (SKD). For the improved temperature stability, initial accuracy, drop out voltage and power consumption embodiment provides that the circuit (CCC) includes a second transistor (TRS) in the line between the base of the first transistor (TRF) and the shunt-type voltage reference (SVR), wherein the second transistor's (TRS) base and collector are connected to the first transistor's (TRF) base.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile