15 Facts About RLC circuit

An RLC circuit is an electrical circuit consisting of a resistor, an inductor, and a capacitor, connected in series or in parallel.

An RLC circuit can be used as a band-pass filter, band-stop filter, low-pass filter or high-pass filter.

The RLC filter is described as a second-order circuit, meaning that any voltage or current in the circuit can be described by a second-order differential equation in circuit analysis.

An important property of this RLC circuit is its ability to resonate at a specific frequency, the resonance frequency,.

The resonant frequency for an RLC circuit is the same as a circuit in which there is no damping, hence undamped resonance frequency.

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Series RLC circuit can be analyzed for both transient and steady AC state behavior using the Laplace transform.

Properties of the parallel RLC circuit can be obtained from the duality relationship of electrical circuits and considering that the parallel RLC is the dual impedance of a series RLC.

Complex admittance of this RLC circuit is given by adding up the admittances of the components:.

Change from a series arrangement to a parallel arrangement results in the RLC circuit having a peak in impedance at resonance rather than a minimum, so the RLC circuit is an anti-resonator.

Series resistor with the inductor in a parallel LC RLC circuit as shown in Figure 4 is a topology commonly encountered where there is a need to take into account the resistance of the coil winding.

RLC circuit found that when a Leyden jar was discharged through a wire wound around an iron needle, sometimes the needle was left magnetized in one direction and sometimes in the opposite direction.

RLC circuit correctly deduced that this was caused by a damped oscillating discharge current in the wire, which reversed the magnetization of the needle back and forth until it was too small to have an effect, leaving the needle magnetized in a random direction.

Shunt version of the RLC circuit is intended to be driven by a high impedance source, that is, a constant current source.

In either case, the RLC circuit becomes a good approximation to an ideal LC circuit.

Such a RLC circuit could consist of an energy storage capacitor, a load in the form of a resistance, some RLC circuit inductance and a switch – all in series.