Title :
Low-power, multi-channel LED driver for portable fNIRS applications
Author :
Fanpeng Kong ; Yi Huang ; Najafizadeh, Laleh
Author_Institution :
Dept. of Electr. & Comput. Eng., Rutgers Univ., Piscataway, NJ, USA
Abstract :
This paper presents a low-power multi-channel light-emitting diode (LED) driver designed in IBM´s 0.13 μm BiCMOS technology for potential application in implementing portable continuous-wave (CW) functional near-infrared spectroscopy (fNIRS) systems. The low-power low dropout regulator (LDO) is designed to provide each LED with 20 mA constant current. A digitally controlled protection circuit is included to increase the overall reliability of the system. With power supply of 1.6 V, the circuit consumes 32.05 mW.
Keywords :
BiCMOS integrated circuits; digital control; driver circuits; infrared spectroscopy; integrated circuit design; integrated circuit reliability; light emitting diodes; low-power electronics; voltage regulators; CW functional near-infrared spectroscopy systems; IBM BiCMOS technology; LDO; continuous-wave functional near-infrared spectroscopy; current 20 mA; digitally controlled protection circuit; fNIRS systems; light-emitting diode; low-power LED driver; low-power low dropout regulator; multichannel LED driver; portable fNIRS applications; power 32.05 mW; reliability; size 0.13 mum; voltage 1.6 V; BiCMOS integrated circuits; CMOS integrated circuits; Integrated circuit modeling; Light emitting diodes; Semiconductor device modeling; LED Driver; Low Power; fINRS System;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2014 IEEE International Conference on
DOI :
10.1109/EDSSC.2014.7061082
