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Analogue micropowered log-domain tone controller for auditory prostheses

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6 Author(s)

A micropower tone-control circuit comprising two first-order log-domain filters and a subtractor built with MOS transistors in weak inversion is described. The tone-controller is capable of providing bass cut/boost and treble cut operations. This circuit is being used in new designs of a conventional (acoustic) hearing-aid and cochlear implant

Published in:

Electronics Letters  (Volume:34 ,  Issue: 11 )