BARTOLOZZI , C.

The invention relates to a reading circuit of an electric signal produced by a POSFET device comprising a transconductance amplifier connected at its inverting input to the output of the POSFET device. Said transconductance amplifier being arranged to receive a signal coming from the POSFET device representative of a force or pressure applied...

In this work, we report a novel circuit architecture to implement event-driven tactile sensing using the POSFET tactile device. The proposed circuit matches advantages of the POSFET device (integration of sensing and electronics on the same die, high electromechanical transduction bandwidth, etc.) with the ones of the event-driven approach. In...

We present a low-power compact circuit for the event-driven readout of tactile sensors. The taxel is based on the POSFET device, a sensotronic unit where a piezo-electric material is deposited on the gate of a transistor, integrated with a Leaky-Integrate and Fire neuron circuit. This device encodes the applied force with trains of digital...

In this paper, we present a new version of previously fabricated event driven tactile sensor [1] with modifications across its circuits and methods involved using the AMS CMOS 0.18μm technology. Electrical characterization experimental results are shown and compared to the ones from the previous proving the advantages of the new sensor...