CPC B06B 1/0644 (2013.01) [G06F 3/016 (2013.01); H02N 2/043 (2013.01); H03K 17/964 (2013.01); H03K 17/9625 (2013.01); H10N 30/202 (2023.02); H10N 30/50 (2023.02); H03K 2217/96062 (2013.01)] | 20 Claims |
1. A device for producing active haptic feedback comprising:
at least one piezoelectric actuator having a plurality of piezoelectric layers and internal electrodes arranged therebetween;
a first amplification element and a second amplification element, wherein the at least one piezoelectric actuator is arranged between the first and second amplification elements, wherein the at least one piezoelectric actuator is configured to change its extension in a first direction upon application of an electrical voltage, and wherein the first and second amplification elements are configured to deform as a result of the change in the extension of the at least one piezoelectric actuator such that a subregion of a respective amplification element is moved relative to the at least one piezoelectric actuator in a second direction, which is perpendicular to the first direction; and
a driver circuit configured to apply the electrical voltage to the at least one piezoelectric actuator such that the first and second amplification elements are deformed thereby producing the active haptic feedback against an object pressing on the device, the active haptic feedback imitating a jump in force.
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