Brain Wave Alarm Clock. Engineered by George Neurauter and Humberto Lopez University of Illinois at Urbana-Champaign Department of Electrical and Computer Engineering Spring 2001. Overview. Introduction Overview of human sleep patterns and physiology Alarm Clock Operation
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George Neurauter and Humberto Lopez
University of Illinois at Urbana-Champaign
Department of Electrical and Computer Engineering
What if your current alarm clock woke you up during Stage IV sleep?
How can we take advantage of these cycles to awaken you easier and
let you have restful naps?
You need to be awake by 8 AM.
Lower Corner Frequency
First Stage (Input Differential)
Second Stage (Differential Amp)
Upper Corner Frequency
Third Stage (Gain)
1st and 2nd stage of all instrumentation amplifiers are the same due
to similar noise rejection and CMRR characteristics.
Total Gain = 25.4 * 7675.4 = 194955.2
Gain gives us saturated circuit, but this is good! TTL waves make finding freq. easy
Total Gain = 25.4 * 577.9 = 14667.1
Muscle tonus characterized by spiking high amplitude wave.
EEG Brain Wave Waveforms acquired through Agilent VEEPro 6.0