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Category: 4. RC Networks

  • Tau – The Time Constant

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    Tau is the time constant of an RC circuit that takes to change from one steady state condition to another steady state condition when subjected to a step change input condition. Tau, symbol τ, is the greek letter used in electrical and electronic calculations to represent the time constant of a circuit as a function of time. But…

  • RC Differentiator

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    The passive RC differentiator is a series connected RC network that produces an output signal which corresponds to the mathematical process of differentiation. For a passive RC differentiator circuit, the input is connected to a capacitor while the output voltage is taken from across a resistance being the exact opposite to the RC Integrator Circuit. A…

  • RC Integrator

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    The RC integrator is a series connected RC network that produces an output signal which corresponds to the mathematical process of integration. For a passive RC integrator circuit, the input is connected to a resistance while the output voltage is taken from across a capacitor being the exact opposite to the RC Differentiator Circuit. The capacitor…

  • RC Waveforms

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    RC circuits can produce useful output waveforms such as square, triangular and sawtooth, when a periodic waveform are applied to its input. RC circuits have the ability to produce different output shapes of RC waveforms depending on the type and frequency (period) of signal waveform applied to its input terminals. In the previous RC Charging…

  • RC Discharging Circuit

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    When a voltage source is removed from a fully charged RC circuit, the capacitor, C will discharge back through the resistance, R RC discharging circuits use the inherent RC time constant of the resisot-capacitor combination to discharge a cpacitor at an exponential rate of decay. In the previous RC Charging Circuit tutorial, we saw how a Capacitor…

  • RC Charging Circuit

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    When a voltage source is applied to an RC circuit, the capacitor, C charges up through the resistance, R The charging of a capacitor is not instant as capacitors have i-v characteristics which depend on time and if a circuit contains both a resistor (R) and a capacitor (C) it will form an RC charging…