title: Wireless power transmission for biomedical implants: The role of near-zero threshold CMOS rectifiers.
abstract: Biomedical implants require an electronic power conditioning circuitry to provide a stable electrical power supply. The efficiency of wireless power transmission is strongly dependent on the power conditioning circuitry specifically the rectifier. A cross-connected CMOS bridge rectifier is implemented to demonstrate the impact of thresholds of rectifiers on wireless power transfer. The performance of the proposed rectifier is experimentally compared with a conventional Schottky diode full wave rectifier over 9 cm distance of air and tissue medium between the transmitter and receiver. The output voltage generated by the CMOS rectifier across a 1 KΩ resistive load is around twice as much as the Schottky rectifier.
authors.forename: Ali
authors.initials: A
authors.lastname: Mohammadi
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Redoute
authors.forename: Mehmet R
authors.initials: MR
authors.lastname: Yuce
mesh_terms: D004867:Equipment Design; D008670:Metals / Q000737:chemistry*; D010087:Oxides; D019736:Prostheses and Implants; D012666:Semiconductors; D059015:Wireless Technology / Q000295:instrumentation*
chemical_list: D008670:Metals; D010087:Oxides