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. 01, 2016
Filed:
Oct. 30, 2013
Airbus Helicopters Deutschland Gmbh, Donauworth, DE;
Eads Deutschland Gmbh, Ottobrunn, DE;
Boris Grohmann, Bouc Bel Air, FR;
Stefan Storm, Unterschleissheim, DE;
Airbus Helicopters Deutschland GMBH, Donauworth, DE;
EADS Deutschland GMBH, Ottobrunn, DE;
Abstract
An electric circuit with one power amplifier (V) for at least two piezoelectric actuators (C, C), said piezoelectric actuators (C, C) being in preferably antagonist arrangement connected mechanically in series and being connected electrically with each other and operated or clocked by a control circuit, such as a pulse modulator circuit, for time-variant energizing of the piezoelectric actuators (C, C) in push-pull fashion, said power amplifier (V) being connected to a junction point between the two piezoelectric actuators (C, C), characterized in that said power amplifier (V) is connected to a one directional diode (D) and in that two buffer capacitors (CC) and two static resistors (R, R) are provided downstream the one directional diode (D) with regard to the power amplifier (V).