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

fYear

2014

Firstpage

1

Lastpage

2

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices and Solid-State Circuits (EDSSC), 2014 IEEE International Conference on

Type

conf

DOI

10.1109/EDSSC.2014.7061082

Filename

7061082