Title :
Hearing aid: A current mode approach
Author :
Paul, S.K. ; Shaik, M.E. ; Samyukth, A.P. ; Bera, A.K.
Author_Institution :
Dept. of Electron. & Instrum., Indian Sch. of Mines Univ., Dhanbad
Abstract :
The design of a current mode resistorless continuous time biquadratic filter for hearing aid application employing CCCIIs is presented. The circuit is capable of amplifying or attenuating signal at one or more selective band(s) of frequencies within the whole audio spectrum. The proposed circuit uses minimum number of active and passive elements. The electronic controllability of the filter parameters is achieved by bias currents of CCCIIs. PSPICE simulation results are shown to validate the theoretical results.
Keywords :
SPICE; biomedical electronics; circuit simulation; continuous time filters; current conveyors; current-mode circuits; hearing aids; CCCII; PSPICE simulation; audio spectrum; bias currents; current mode approach; current mode resistorless continuous time biquadratic filter; electronic controllability; filter parameters; hearing aid; signal amplification; signal attenuation; Current controlled conveyor (CCCII); Current mode Filter; Hearing aid; Resistorless filter;
Conference_Titel :
Information and Communication Technology in Electrical Sciences (ICTES 2007), 2007. ICTES. IET-UK International Conference on
Conference_Location :
Tamil Nadu
