How to measure inductore and capacitor value's to get best Vpp in a certain frequency

[shirko20]

with my regret,
how we can calculate best value for Cpacitor and inductors in Hartley oscillator to get best Vpp or increase output wave energy in a certain frequency for instance in 300khz how to calculate best values to put out best Vpp from circuit?

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correction with my regard not (hhhhhhhhhh) regret

 

[BradtheRad]

For large voltage swings, and small current flow...
you want large Henry value, small Farad.

Vice-versa for small voltage swings, and large current flow...

 

[shirko20]

BradtheRad thank you,is there any formula or regulation for calculate certain Vpp?

 

[BradtheRad]

BradtheRad thank you,is there any formula or regulation for calculate certain Vpp?

It is hard to predict.

One guideline is to the amount of current going through the circuit.

A lot depends on ohmic resistance within the inductor, as well as resistance in neighboring components.

To maintain oscillations, you need to inject a certain amount of current per cycle, into the LC loop. This needs to be available from neighboring components. If the LC loop needs a lot of current, then you need low resistance in neighboring components.

There are the formulas for reactive impedance:

X_L = 2 Pi f L

X_C = 1 / (2 Pi f C )

If there is little current going through the circuit, then you will have greater Vpp by choosing a high L:C ratio.

It is usually satisfactory if you make it between 100 and 10,000x.

 

[shirko20]

thank you for your answer dear BradtheRad
:thumbsup: