Patent ID: 8922096
Filing Date: 2014-12-30
Classification: H02N

Abstract:
1. A circuit arrangement for actuating a piezo valve with at least one actuator formed by a piezoelectric bending transducer, which has two piezo actuators running in elongated fashion in each case along a longitudinal direction of the bending transducer, comprising: at least one driver having a driver input for inputting an actuation control signal and a driver output for generating an actuator drive signal, which is to be output optionally to one of the two piezo actuators in a manner dependent on the actuation control signal, a detection device for detecting an electrical measurement variable at one of the piezo actuators which is currently not being driven, and a feedback device for generating a vibration damping signal on the basis of the detected measurement variable and feeding back the vibration damping signal to the driver input of the driver currently being used for providing the actuator drive signal.