Method and apparatus for driving a dielectric elastomer matrix avoiding crosstalk

Apparatus for driving a matrix of elements responding to an absolute value of an activation voltage avoiding crosstalk, the matrix comprising a set of elements arranged in M rows and N columns and having a first electrode and a second electrode on which to apply the activation voltage, the apparatus comprises:

• a high voltage switching circuit for applying voltages to the electrodes of the elements;
• a low voltage activation circuit connected to the high voltage switching circuit and configured, when at least one selected element of the matrix located on a common activation column and on at least one activation row is to be excited, for:
• applying, through the high voltage switching circuit, a row activation voltage to the first electrode of all the elements located on the at least one activation row;
• applying, through the high voltage switching circuit, a column activation voltage to the second electrode of all the elements located on the common activation column;
• applying, through the high voltage switching circuit, a common row voltage to the first electrode of the elements located on all the rows of the matrix except for the at least one activation row;
• applying, through the high voltage switching circuit, a common column voltage to the second electrode of the elements located on all the columns of the matrix except for the common activation column.