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Can you use a tank circuit to produce an AC circuit?

  1. Apr 18, 2016 #1
    Since the resonant frequency of a tank circuit, is completely adjustable, and controlled by the value inductor and capacitor you use, I was wondering if it had any other uses, other than increasing its impedance at its resonant frequency. Can if be used to produce ac signals of its resonant frequency? What other uses are their for a tank circuit? How are they used? Thank you, your help is appreciated.
  2. jcsd
  3. Apr 18, 2016 #2


    Staff: Mentor

  4. Apr 18, 2016 #3
  5. Apr 18, 2016 #4


    Staff: Mentor

    It doesn't say that. Define what you mean by high frequency.

    Edit: Also define what you mean by generate. A signals energy had to come from somewhere.
  6. Apr 18, 2016 #5
    Taking a DC signal, and turning it into a seperate, ac signal of the resonate frequency of the circuit. It doesn't necessarily have to be high frequency
  7. Apr 18, 2016 #6


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    That is known as an oscillator. An oscillator sometimes uses a tank circuit but not necessarily. At any rate, an oscillator ALWAYS has to utilize a power source and some type of active device such as a transistor or if you are old school, electron tubes or valves as they are known in some parts of the world.
  8. Apr 18, 2016 #7


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    My understanding of a tank circuit is an LC resonant circuit which is used as an energy store (hence "tank"), so that brief current impulses can be turned into a near sine wave. For instance, if a tank circuit is placed across the resistive load of a Class C amplifier, the short pulses of DC are turned into a continuous sine wave.
  9. Apr 20, 2016 #8
    Ok, cool, thanks
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