Figure 44. Differentiator circuit input
and output pulses
b. From Figure 44, it is evident that when the input voltage is
applied, EL increases almost instantaneously to a small positive
value, and then remains constant at that value during the remaining
rise time. During the pulseduration period, EL is equal to zero.
When the applied voltage starts to decay, EL increases in a negative
direction and then remains constant during the decay time. When the
applied voltage is equal to zero, EL decays to zero and remains
constant until the next pulse is applied. Outputs of other waveforms
are shown in Figure 45. In each case, an output is developed only
when there is a change in the rate of current flow in the circuit.
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