Electrical "resonator" circuit, consisting of inductive and capacitive elements with no resistance
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Linear analog electronic filters
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Butterworth filter
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Elliptic (Cauer) filter
Bessel filter
Gaussian filter
Optimum "L" (Legendre) filter
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Image impedance filters
Constant k filter
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LC filter
RLC filter
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An LC circuit, also called a resonant circuit, tank circuit, or tuned circuit, is an electric circuit consisting of an inductor, represented by the letter L, and a capacitor, represented by the letter C, connected together. The circuit can act as an electrical resonator, an electrical analogue of a tuning fork, storing energy oscillating at the circuit's resonant frequency.
LC circuit diagram
LC circuit (left) consisting of ferrite coil and capacitor used as a tuned circuit in the receiver for a radio clock
Output tuned circuit of shortwave radio transmitter
LC circuits are used either for generating signals at a particular frequency, or picking out a signal at a particular frequency from a more complex signal; this function is called a bandpass filter. They are key components in many electronic devices, particularly radio equipment, used in circuits such as oscillators, filters, tuners and frequency mixers.
An LC circuit is an idealized model since it assumes there is no dissipation of energy due to resistance. Any practical implementation of an LC circuit will always include loss resulting from small but non-zero resistance within the components and connecting wires. The purpose of an LC circuit is usually to oscillate with minimal damping, so the resistance is made as low as possible. While no practical circuit is without losses, it is nonetheless instructive to study this ideal form of the circuit to gain understanding and physical intuition. For a circuit model incorporating resistance, see RLC circuit.
An LCcircuit, also called a resonant circuit, tank circuit, or tuned circuit, is an electric circuit consisting of an inductor, represented by the letter...
An LCcircuit can be quantized using the same methods as for the quantum harmonic oscillator. An LCcircuit is a variety of resonant circuit, and consists...
components may vary from RLC. The circuit forms a harmonic oscillator for current, and resonates in a manner similar to an LCcircuit. Introducing the resistor...
an LCcircuit. Some resistance is unavoidable in real circuits, even if a resistor is not specifically included as a separate component. A pure LC circuit...
series LCcircuit equals the square root of the reciprocal of the product of the capacitance (C, with SI unit farad) and the inductance of the circuit (L...
analog circuit components: the resistor (R), the capacitor (C), and the inductor (L). These may be combined in the RC circuit, the RL circuit, the LC circuit...
1990s Macintosh LC, the first computer in the Macintosh LC family LC-type optical fiber connector LCcircuit, in electronics, a circuit with an inductor...
the stored magnetic energy at resonance as is the case for a resonant LCcircuit. In terms of inductance and capacitance, the resonant frequency for a...
between the tube and tank (LCcircuit). The schematic shows an example with component values.The Seiler oscillator uses a LCcircuit L1, C1 that is connected...
for use at lower frequencies. In an LC oscillator circuit, the filter is a tuned circuit (often called a tank circuit) consisting of an inductor (L) and...
the RC circuit, the RL circuit, the LCcircuit and the RLC circuit, with the abbreviations indicating which components are used. These circuits exhibit...
and parallel circuits, two ways in which electrical components may be interconnected Simple filters, including: LCcircuit or tank circuit, consisting...
connected to its input in a feedback loop containing a parallel LCcircuit (tuned circuit), which functions as a bandpass filter to set the frequency of...
oscillator circuit in which the oscillation frequency is determined by a tuned circuit consisting of capacitors and inductors, that is, an LC oscillator...
LCcircuit (tank circuit L1 and C in the figure on the right) and is approximately given by f = 1 2 π L C {\displaystyle f={\frac {1}{2\pi {\sqrt {LC}}}}\...
winding has a capacitance across it and functions as an LCcircuit (resonant circuit, tuned circuit), storing oscillating electrical energy, analogously...
impedance top of the LCcircuit C0, C1, C2, L1 and the amplifier output, the source, is connected to the low impedance tap of the LCcircuit. The grid leak...
system consisting of a single tunable LCcircuit and a separate voltmeter or ammeter. The user tunes the LCcircuit, typically through a variable capacitor...
oscillator circuit in which the oscillation frequency is determined by a tuned circuit consisting of capacitors and inductors, that is, an LC oscillator...
coil and the parasitic capacitances of the circuit form a LCcircuit with a Q of about 50 000. The LCcircuit is excited by an external electric pulse....
terminals of the LCcircuit is a diode, then between the end of the diode not wired to the LCcircuit and the terminal of the LCcircuit not bearing the...
source in series with a large resistor) and series resonant circuitLC. The series LCcircuit has low impedance only at its resonant frequency and so will...
the impedance presented by the LCcircuit increases, and the amplitude of the RF signal getting through the LCcircuit drops. The feedback signal to the...
of passive component: RC network – forms an RC circuit, used in snubbers LC Network – forms an LCcircuit, used in tunable transformers and RFI filters...
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LC circuit diagram
LC circuit (left) consisting of ferrite coil and capacitor used as a tuned circuit in the receiver for a radio clock
Output tuned circuit of shortwave radio transmitter
