Lc circuit

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Also known as an inductor-capacitor circuit, an LC circuit, a resonator circuit or a tuned circuit, a tank circuit is a simple electrical circuit that uses magnetic resonance to store an electrical charge or produce an electromagnetic frequency. If you’ve ever wondered how your radio picks up single frequencies when you turn the dial — instead of playing all the radio frequencies in the air at the same time — the answer is a tank circuit. A Bit of History The first study on the ...

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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.

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There are lots of schemes that oscillate in the 40 - 120MHz range, but they usually use LC circuits, varicaps, pin diodes, controlled by 0 to 30V voltage source. This makes the devices more complicated and a special correction of the output levels of the signal is needed. The proposed design offers a wide range of frequency tuning, stable output levels and is powered by a +5V supply.

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