Title :
On-chip active power rectifiers for biomedical applications
Author :
Lehmann, Torsten ; Moghe, Yashodhan
Author_Institution :
Sch. of Electr. Eng. & Telecommun., New South Wales Univ., Sydney, NSW, Australia
Abstract :
In this paper, we describe a new active power rectifying element (an ´ideal´ diode) compatible with a standard CMOS process. We use this element to implement two types of on-chip active power rectifier for biomedical applications, such as cochlear implants and retinal prostheses. The rectifiers are simulated in a standard 0.35 μm CMOS process and show a considerable increase in efficiency compared with passive diode based rectifiers. Measurements on fabricated circuits also confirm this.
Keywords :
CMOS integrated circuits; biomedical electronics; biomedical engineering; biomedical equipment; circuit simulation; ear; eye; handicapped aids; hearing aids; integrated circuit measurement; semiconductor diodes; sensory aids; solid-state rectifiers; 0.35 micron; CMOS process compatibility; active power rectifying element; biomedical applications; circuit measurements; cochlear implants; ideal diode; on-chip active power rectifiers; passive diode based rectifiers; rectifier efficiency; retinal prostheses; standard CMOS process simulation; Application specific integrated circuits; Automatic control; Cathodes; Diodes; Implants; Rectifiers; Space vector pulse width modulation; Switches; Variable structure systems; Voltage;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1464692
