A differentiator circuit can be used to convert a pulse input to a nearly constant dc output.

More Questions from Time Response of Reactive Circuits

• During the steady-state condition of a differentiator, the average output voltage is zero volts.
• The voltage across a capacitor in an RC integrator circuit cannot change exponentially; it can change only instantaneously.
• The output voltage of a differentiator goes negative on the falling edge of the input pulse.
• The output of a differentiator could be considered a spike when the input pulse width is much longer than 5 time constants.
• The steady-state condition of an integrator is reached after 5 time constants regardless of the number of input pulses that occur in that amount of time.
• The output of an RC differentiator is taken from across the capacitor.
• If the output of an RC integrator is zero volts, the capacitor might be open.
• A repetitive pulse with a 50% duty cycle is being applied to the input of an RC integrator. If one time constant is less than one-fifth the pulse width, the capacitor will be able to fully charge and discharge.
• The output of an RL differentiator is taken from across the inductor.
• If a repetitive-pulse waveform is applied to an RC integrator, the output waveshape depends on the relationship of the circuit time constant and the duty cycle of the input pulses.

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