Change Frequency?

Question

How do you change resonate frequency without interfering with the volatage? What do you need to do this and is there a formula that I could use?

Answer 1

Resonant frequency has nothing to do with voltage. It is determined by the value of capacitance and the value of inductance.



f = 1/(2π√LC)



so if you change either one, the frequency will change.

Answer 2

Billrus gave you the correct information about about the resonate frequency of an LC circuit. However, the impedance of an LC circuit to an ac source voltage operating at a fixed frequency does change as you adjust the value of either L or C so that the resonate frequency of the LC combination does not match the frequency of the ac source voltage. Of course as the impedance changes so will the voltage drop across the LC combination.



When L and C are connected in series with an ac source voltage who`s frequency is the same as the resonate frequency of the LC combination then the impedance of the circuit is approaching zero and current will will be at it`s maximum. With an impedance approaching zero through the LC combination then the voltage drop across LC will also approach zero.



When L and C are connected in parallel with an ac source voltage who`s frequency is the same as the resonate frequency of the LC combination then the impedance of the circuit is approaching infinity and current through the circuit will be approaching zero. Now the voltage across LC will be at it`s maximum and will be equal to the ac source voltage.



What I am trying to say is that the voltage across an LC circuit will vary as you tune it`s resonant frequency above and below the frequency of an applied ac voltage from any source



I think you were asking, "what do you need to do to change this"? The answer is nothing except use it to your advantage. You will see how later if you stay in this line of work.

Answer 3

each controller has specific prevalent jobs: airspace, form of flight, plane, etc. whilst an plane passes from one controller's area of duty to the area of yet another controller, a frequency replace is needed. suitable now there is not any way around this. Twenty modifications sounds slightly severe. permit's see … transport, floor, tower, departure, middle (3 centers in contact), attitude, tower, floor. that's approximately ten frequency modifications. now and back there is greater (shifting between sectors, as an occasion). Twenty sounds severe, however. this does not contain some airport frequencies. besides, it incredibly is only the way issues are executed. plane are assigned to an ATC frequency according to the place they are and what they are doing, and because this modifications over the path of a flight, so does the frequency.

Answer 4

Is this a simple RLC circuit, or something more complicated? We need to know more about the circuit you working with. Why your frequency adjustments might be affecting voltage has to do with what your circuit looks like. And what voltage are you referring to, the output, the power supply, etc...?