Page 85 - Concise Encyclopedia of Robotics

Amplitude
Time
_ + Function Differential Ampifier
Derivative
Derivative—Fig. 2

DICHOTOMIZING SEARCH
See BINARY SEARCH.
DIFFERENTIAL AMPLIFIER
A differential amplifier is an electronic circuit that responds to the difference
in amplitude between two signals.Some differential amplifiers also produce
gain, resulting in an output signal whose amplitude varies dramatically
when the amplitude of either input signal varies only a little. The output
is proportional to the difference between the input signal levels. If the
input amplitudes are identical, then the output is zero.
The nomograph shows how the instantaneous output of a differential
amplifier varies as the instantaneous input values change. To find the

Differential amplifier

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