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:
Sep. 15, 2026
Filed:
Mar. 30, 2023
Elmos Semiconductor SE, Dortmund, DE;
Andre Schmidt, Wiehl, DE;
Dennis Kreiß, Dortmund, DE;
Guido Schlautmann, Altenberge, DE;
Stefanie Heppekausen, Essen, DE;
ELMOS Semiconductor SE, Leverkusen, DE;
Abstract
An ultrasonic measuring device includes an ultrasonic transducer without voltage converter having two transducer terminals to which an alternately reversible control voltage can be applied for emitting an ultrasonic burst signal in a control phase and to which an evaluation voltage is applied in a reception phase. The ultrasonic transducer decays in a decay phase between the control phase and the reception phase. A control unit generates the control voltage. The control unit comprises a full bridge circuit with two half bridge circuits, each comprising two semiconductor driving switches, which are connected to the two terminals of the ultrasonic transducer. An evaluation unit is provided with two input terminals, each of which is connected to the terminals of the ultrasonic transducer via a connection line. Voltage limiting elements in the two terminal lines limit the voltage applied to the input terminals of the amplifier.