Title :
A programmable charge pump voltage converter for implantable medical devices in a HV technology
Author :
Gak, J. ; Miguez, M. ; Arnaud, A.
Author_Institution :
Electr. Eng. Dept., Univ. Catolica del Uruguay, Montevideo, Uruguay
fDate :
Feb. 27 2013-March 1 2013
Abstract :
In this paper, a multi-channel, 5bit programmable charge-pump voltage multiplier aimed at charging the output capacitors for the delivery of voltage stimuli in implantable devices, is presented. The circuit was fabricated in a 0.6μm HV-CMOS technology and tested, showing a measured charge efficiency close to 95% of the maximum theoretical value. The individual charge pump channels share the pump capacitors and can be programmed as IX, 2X, or 3X multiplier. The circuit is capable to operate with a battery ranging from 1.6V to 5.5V.
Keywords :
CMOS integrated circuits; biomedical equipment; capacitors; charge pump circuits; prosthetic power supplies; voltage multipliers; HV-CMOS technology; charge efficiency; implantable medical devices; programmable charge pump voltage converter; pump capacitors; pump channels; Decision support systems;
Conference_Titel :
Circuits and Systems (LASCAS), 2013 IEEE Fourth Latin American Symposium on
Conference_Location :
Cusco
Print_ISBN :
978-1-4673-4897-3
DOI :
10.1109/LASCAS.2013.6519060
