The portable Electronic Blood-Pressure Meter gets rid of the
traditional Mercury Blood-Pressure Meter, is easier for the user to use,
and the measurement result is displayed directly. The usual way is to
use oscillographic meth...
Operational amplifier and comparator The electrical symbols of the comparator and the operational amplifier are very similar. They are devices with two input term...
The noise-cancelling headphones,
speakers, KVM, matrix, mixers, etc often require to process multiple
audio signals. Designing a set of conditioning circuit for each audio
signal will be very expensive and very complicated. The...
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