A regulated passive rectifier is introduced in this paper, specifically designed for battery-less, ultrasound-powered implantable medical devices. The rectifier exploits a bulk-driven amplifier and modulation of the bulk current of the p-type transistors to regulate the output voltage. The proposed solution is implemented in 180- nm standard CMOS process technology and validated through post-layout simulations. Comparison with previous art shows a significant improvement of the performance thanks to its nA-range quiescent current consumption, low area and low-voltage/low-power operation capabilities, well-fitting low-invasiveness and high-efficiency fully-harvested implantable devices.
Bulk- Current-Regulated Rectifier for Battery-less Ultrasound-Powered Implantable Medical Devices
Shah M. O.
;Privitera M.Primo
;Grasso A. D.;Pennisi S.
2025-01-01
Abstract
A regulated passive rectifier is introduced in this paper, specifically designed for battery-less, ultrasound-powered implantable medical devices. The rectifier exploits a bulk-driven amplifier and modulation of the bulk current of the p-type transistors to regulate the output voltage. The proposed solution is implemented in 180- nm standard CMOS process technology and validated through post-layout simulations. Comparison with previous art shows a significant improvement of the performance thanks to its nA-range quiescent current consumption, low area and low-voltage/low-power operation capabilities, well-fitting low-invasiveness and high-efficiency fully-harvested implantable devices.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
